Corn Irrigation. Chad Lee, Ph.D.
|
|
- Holly Harrell
- 5 years ago
- Views:
Transcription
1 Corn Irrigation Chad Lee, Ph.D. Extension Agronomist University of Kentucky 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 1
2 Corn Production from 1980 to 2011 in the U.S.A. Per Bushel Corn used -53% irrigation water Corn generated -36% greenhouse gas emission Per Acre Corn used -28% irrigation water Corn generated +8% greenhouse gas emission 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 2
3 Corn Yield 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 3
4 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 4
5 Genetics Soils Nutrients Water Genetics Soils Nutrients Water Yield Limitations TOTAL YIELD TOTAL YIELD 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 5
6 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 6
7 Water Holding Capacity of Most Soils Textural Class Water Holding Capacity, inches/foot of soil Coarse Sand Fine Sand Loamy Sand Sandy Loam Fine Sandy Loam Silt Loam Silty clay loam Silty clay Clay /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 7
8 Water Holding Capacity Many grass-based soils can hold 10 to 15 inches of water per season. Soils with restriction layers may hold 5 inches or less. Corn needs about 20 to 25 inches of water. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 8
9 Genetics Soils Nutrients Water Genetics Soils Nutrients Water Yield Limitations TOTAL YIELD TOTAL YIELD 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 9
10 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 10
11 Corn with adequate water Yield, bu/a , Spindletop Farm, Lexington, KY ,000 seeds/acre 2009, Spindletop Farm 4 hybrids: DKC63-42, DKC63-45, DKC64-44 & DKC65-47 No-Till Loradale Silt Loam 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 11
12 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 12
13 What caused this? 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 13
14 What caused this? 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 14
15 Corn Irrigation: The Main Points Corn needs about 20 to 25 inches of water (in Kentucky). High yields? Most soils provide about 5 inches of water at field capacity. Corn is most sensitive to water stress around tasseling. Water stress at many stages of corn growth can reduce yield. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 15
16 The basic question: You ask: how do I increase yield? Answer: increase photosynthesis and/or C assimilation in the plant 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 16
17 Changes in Hybrids over Time Smaller tassels Smaller leaf angle Deeper penetration of light Smaller ears Higher populations 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 17
18 Photosynthesis: carbon dioxide + water sugar + oxygen Solar energy 6 CO H 2 O C 6 H 12 O O 2 Respiration: sugar + oxygen + water 30 steps carbon dioxide + water kcal C 6 H 12 O O H 2 O 6 CO H 2 O Energy Source: Dennis Gardner et al., Physiology of Crop Plants The Iowa State University Press. Ames. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 18
19 Water makes a difference most years. Daviess County, KY, June 27, 2012: Same Field, Same Row, Same Hybrid, Non-irrigated and Irrigated. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 19
20 Time: Emergence to Black-layer: about days Seed fill: about 30 days 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 20
21 Leaf Collar Abendroth, L., R. Elmore, M. J. Boyer and S. K. Marlay Corn Growth and Development. PMR Iowa State Univ. Extension, Ames, Iowa. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 21
22 6 Fully Emerged Leaves 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 22
23 6 Fully Emerged Leaves 9 th & 10th Different Plant 8th 7th 3rd 5th 6th 4th 1 st leaf 2 nd leaf 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 23
24 VE = emergence 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 24
25 V2 Corn 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 25
26 Six Fully Emerged Leaves, V6 Growing point above soil surface. Tassel and dominant ear development have started. Final node number and leaf development are set. Cumulative Nutrient uptake: about 7% of N 5% of P 10% of K 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 26
27 V8 Corn Tassel and dominant ear are continuing to grow. Kernel initiation is starting. Rapid Stem Growth Cumulative Nutrient uptake: about 15% of N 10% of P 20% of K 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 27
28 V8 Corn 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 28
29 Pollen Drop 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 29
30 Tassel / Silking, VT/R1 Cumulative Nutrient uptake: about 60% of N 35% of P 75% of K 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 30
31 Temp (F) Precipitation (in) Hot and Dry Corn and Soybeans require about 20 to 24 inches of water per season Spindletop, KY 2012 Max Air Temp Min Air Temp Cumm. Precip VT/R1 0 3/1 4/1 5/1 6/1 7/1 8/1 9/ /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 31
32 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 32
33 Corn and Heat Temperatures about 77 to 91 F Corn can survive temps above 100 F depending on water availability Elmore, R. and E. Taylor Corn and a Big Long Heat Wave on the Way Iowa Integrated Crop Management Newsletter Iowa State Univ. Nafziger, E High Temperatures and Crops. University of Illinois Thomison, P High Temperature Effects on Corn. C.O.R.N. Newsletter, Ohio State Univ. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 33
34 % Kentucky Weekly Crop & Weather Report, USDA-NASS, Tasseling 30 Silking /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 34
35 Trapped Tassel Drought/heat hurts pollination Timing of pollen drop and silking Dries out pollen Dries out silks Aborts fertilized ovules 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 35
36 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 36
37 Dent Stage, R5 About 30 days. About 45% dry matter accumulation at start. About 90% dry matter accumulation at ½ milk line. Cumulative Nutrient Uptake 90% of N 80% of P 95% of K 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 37
38 Plant Germinate Initiation and Duration Kernel Growth Kernel Initiation Ear Initiation and Growth Tassel Initiation and Growth Internode Elongation Leaf Growth and Appearance Leaf Initiation VE V4 V6 V12 V16 VT/R1 R2 R3 R4 R5 R6 Adapted from Figure 1. in Abendroth, L., R. Elmore, M. J. Boyer and S. K. Marlay Corn Growth and Development. PMR Iowa State Univ. Extension, Ames, Iowa. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 38
39 Nutrient Uptake 120 % Cumulative Uptake % N P K Abendroth, L., R. Elmore, M. J. Boyer and S. K. Marlay Corn Growth and Development. PMR Iowa State Univ. Extension, Ames, Iowa. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 39
40 Nutrients Removed by the Kernels 300 Nutrients Removed 280 lbs Grain Yield, bu/a N P2O5 K2O 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 40
41 Nutrient Sampling AGR-92: Sampling Plant Tissue for Nutrient Analysis 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 41
42 Nutrient Sufficiency Levels Macronutrient sufficiency range for crops grown in Kentucky. Growth Stage Plant Part N P K Ca Mg S % Seedling, < 4 in Whole Plant Vegetative Uppermost mature leaf Tasseling Ear Leaf Micronutrient sufficiency range for crops grown in Kentucky. Growth Stage Plant Part Fe Mn Zn Cu B Mo ppm Seedling, < 4 in Whole Plant Vegetative Uppermost mature leaf Tasseling Ear Leaf AGR-92: Sampling Plant Tissue for Nutrient Analysis 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 42
43 Water 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 43
44 Water: Transpiration Efficiency of Crops Species Type TE B (g aboveground dry matter / kg of water) TE Y (g dry matter yield / kg of water) Corn C4 4.8 ( ) 1.9 ( ) Wheat C3 4.5 ( ) 1.7 ( ) Soybean C ( ) bu requires 1.9 ( ) about 22 inches. Potato C3 4.9 ( ) 5.4 ( ) Sugarcane C bu requires -- Grain sorghum C4 about ( ) inches 1.9 ( ) Rice C3 (based 3.0 on ( ) average number) bu corn likely is more efficient and would require less than 33 inches. Connor, Loomis and Cassman Crop Ecology: Productivity and Management in Agricultural Systems. Cambridge University Press. New York. (p. 259, Table 9.4) 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 44
45 Water needs About 20 to 25 inches of water needed to grow corn in our region. (Possibly more for higher yields.) Peak demand around tassel and silk is about 0.3 inches per day 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 45
46 Corn Water Use, Nebraska 113-day hybrid in South Central Nebraska Growth Stage Average Water Use Rate (in/day) Duration (days) Water Needed to Reach Stage (inches) Water needed cumulative (inches) VE V V V Early Tassel Silking Blister Kernel Beginning Dent Full Dent Maturity Kranz, Irmak, Donk, Yonts and Martin Irrigation Management for Corn. G1850. University of Nebraska-Lincoln. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 46
47 Corn Water Use, Nebraska 113-day hybrid in South Central Nebraska in/day Average Water Use Rate (in/day) Kranz, Irmak, Donk, Yonts and Martin Irrigation Management for Corn. G1850. University of Nebraska-Lincoln. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 47
48 Recorded daily water use versus longterm water use curve Kranz, Irmak, Donk, Yonts and Martin Irrigation Management for Corn. G1850. University of Nebraska-Lincoln. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 48
49 Estimated daily water losses from evaporation and transpiration from the U.S. Corn Belt U.S. Region Weather May June July August Sept Water Loss, Inches per Day Southern Cloudy Partly Cloudy Clear From Table 10.2 in Hoeft, Nafziger, Johnson and Aldrich Modern Corn and Soybean Production. MCSP Publications, Champaign, IL. 5.1 inches / month 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 49
50 Water Holding Capacity of Most Soils Textural Class Water Holding Capacity, inches/foot of soil Coarse Sand Fine Sand Loamy Sand Sandy Loam Fine Sandy Loam Silt Loam Silty clay loam Silty clay Clay /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 50
51 Yield losses from water and heat Situation Expected Yield Loss For every 4 hours of leaf rolling during silking 1% 4 consecutive days above 93 F (w/ moisture) 1% 5 th consecutive day above 93 F 2% 6 th consecutive day above 93 F 4% High night temperatures? Elmore, R. and E. Taylor Corn and a Big Long Heat Wave on the Way Iowa Integrated Crop Management Newsletter Iowa State Univ. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 51
52 Kentucky Climate 2012 Mayfield, KY Mx Temp Mn Temp Yield Loss from Heat Yield Loss from Leaf Rolling Cumulative Day 1 July % Day 2 Jun % 4 Day 3 Jun % 6 Day 4 Jun % 2% 9 Day 5 Jul % 2% 13 Day 6 Jul % 2% 19 Day 7 Jul ? 2% 29 Day 8 Jul ? 2% 47 Day 9 Jul ? 2% 81 Day 10 Jul % 83 Assumes good pollination. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 52
53 Yield is maximized by maximizing light interception and conversion to sugars. Photosynthesis Captures sunlight and converts CO 2 and H 2 O into sugar (glucose) Respiration Uses sugar to build structures (leaves, kernels, etc.) Uses sugar to maintain the plant. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 53
54 Glucose Corn uses the glucose sugar it produced from photosynthesis for: Cell division and elongation (plant growth) Cell maintenance Storage (to be used in the seed later) Respiration Image source: en.wikipedia.org 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 54
55 Glucose needs for yield Crop Pounds of Glucose Needed to produce one Bushel Corn 77.9 Soybean Grams of Glucose needed per gram of product Carbohydrate 1.21 Protein (with reduced N) 1.62 Protein (with nitrate N) 2.48 Lipid 2.71 Lignin 1.92 Organic Acids 0.91 Connor, Loomis and Cassman Crop Ecology: Productivity and Management in Agricultural Systems. Cambridge University Press. New York. (p ) 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 55
56 Sugar Demand of the Crop Crop Glucose Needed to produce one Bushel lbs of Glucose Corn 77.9 Soybean bushels of corn requires about 15,580 lbs of glucose For a 115-day hybrid, that would be 135 lbs glucose/day. Connor, Loomis and Cassman Crop Ecology: Productivity and Management in Agricultural Systems. Cambridge University Press. New York. (p ) 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 56
57 Could sugar help at pollination? Plant is most sensitive to stress at this point in time. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 57
58 Corn Grain Yields Woodford County, Kentucky 2007, Dry Weather During Seed Fill Yield, bu/a , Kentucky, Woodford County SS777 RR2YGPL Seeded: May 3 No-Till Maury silt loam R² = R² = Irrigated Rainfed Seeding Rate (1,000 seeds per acre) Year: 2007 Location: Woodford County Farm Hybrid: SS777RR2YGPL Poncho 1250-treated seed Planting: May 3, /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 58
59 Corn with adequate water Yield, bu/acre Corn Yields, Averaged over 30, 15 and twin rows: Spindletop Farm, Kentucky B A A C AB A AB B Larue Lexington Target Population: 1,000 plants/acre 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 59
60 Corn with adequate water Yield, bu/a , Spindletop Farm, Lexington, KY ,000 seeds/acre 2009, Spindletop Farm 4 hybrids: DKC63-42, DKC63-45, DKC64-44 & DKC65-47 No-Till Loradale Silt Loam 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 60
61 Adequate Water vs. Lack of Water Lexington, , 4 Hybrids, VT3 Hybrids and RRCB Hybrids Yield, bu/acre Corn Seeding Rates, Yields 2009 Yields Linear (2008 Yields) Poly. (2009 Yields) Seeding Rate (1,000 seeds per acre) 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 61
62 Higher Populations = Smaller Plants = More Yields? Stalk Diam., mm , Spindletop Farm, Lexington, KY R² = ,000 seeds/acre 4 Hybrids Yield, bu/a , Spindletop Farm, Lexington, KY ,000 seeds/acre If you are going to push populations, you better have good stalk strength. 4 Hybrids 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 62
63 Comparing Twins to 30-inch rows Hand Harvest of 20 Consecutive Plants Yield, Bu/Acre : Row Spacing and Grain Yield 30-in Twin Linear (30-in) Linear (Twin) ,000 30,000 40,000 50,000 Plants/Acre As plant population increased stalk diameter decreased plant height decreased light interception increased kernels per ear decreased Twin rows increased yield did not affect light interception did not affect plant height 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 63
64 Name Spindletop Farm, 2009 Yield, Bu/A Hybrid DeKalb DKC63-24, DKC63-45, DKC65-44, DKC65-47 County Fayette County Planting Date 4/27 Row Width, inches 30 Seeding Rate About 47,000 Final Stand 47,000 Prev. Crop Soybean P 2 O 5 0 (adequate soil test) K 2 O 0 (adequate soil test) N 160 lbs/a Split N No, Sidedress Only (V5) 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 64
65 Name Spindletop Farm, 2009 Yield, Bu/A Other none Seed Treatment Poncho 250 Herbicides Lexar + glyphosate fb glyphosate Insecticides None Fungicides None Tillage No-Till Planter John Deere 7200 Harvester Hege Wintersteiger 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 65
66 Name Spindletop Farm, 2009 Yield, Bu/A Hybrid lbs N/A DeKalb DKC63-24, DKC63-45, DKC65-44, DKC65-47 County Fayette County Planting Date Bu/A 4/27 Row Width, inches 30 Seeding 0.51 Rate lbs fertilizer 45,000 N/bu Final Stand 47,000 Prev. Crop N Uptake, Soybean grain = 142 lbs N P 2 O 5 0 (adequate soil test) = 21 lbs N remaining K 2 O 0.70 lbs (adequate N/bu soil test) What happened to the other 21 N 221 lbs 160 N/acre lbs/a lbs? Split N No, Sidedress Only (V5) Other none Seed Treatment 2009, Poncho 0 N check 250 Herbicides Lexar bu/acre glyphosate fb glyphosate Insecticides None Fungicides 82 None lbs N/acre Tillage No-Till Planter John Deere 7200 Harvester Hege Wintersteiger 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 66
67 Where do you focus, first? Seeding uniformity Seeding rates Row width Hybrid selection N management Foliar Products 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 67
68 Down the Road Seeding rates (and final populations) will increase over time. At some point, narrow rows will be needed Row Spacing (in) Inches Between Plants Plants / Acre 30 50, , , /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 68
69 Hybrid Development Corn hybrid development in the U.S. still occurs in 30-inch rows. Companies use high populations to induce stress. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 69
70 Corn Irrigation: The Main Points Corn needs about 20 to 25 inches (maybe more) of water (in Kentucky). Many Kentucky soils will only hold 5 inches of water at field capacity. Corn is most sensitive to water stress around tasseling. Water stress at many stages of corn growth can reduce yield. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 70
71 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 71
72 % Nutrient Uptake Growth Stage N P K % Cumulative Uptake VE V V V VT/R R R R R R /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 72
73 Table 1. Normal Range of CEC Values for Common Color/Texture Soil Groups. CEC in Soil Groups Examples meg/100g Light colored sands Plainfield 3 to 5 Bloomfield Dark colored sands Maumee 10 to 20 Gilford Light colored loams and silt loams Clermont-Miami 10 to 20 Miami Dark Colored loams and silt loams Sidell 15 to 25 Gennessee Dark Colored silty clay loams and silty clays Pewamo 30 to 40 Hoytville Organic soils Carlisle muck 50 to 100 Source: David Mengel AY-238: Fundamentals of Soil Cation Exchange Capacity (CEC). Purdue Univ. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 73
74 Corn Removal Rates Crop N P 2 O 5 K 2 O Yield N P 2 O 5 K 2 O lbs/unit lbs/acre 100 bu corn grain bu bu bu corn stalks ton ton ton ton AGR-1: Lime and Fertilizer Recommendations 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 74
75 Photosynthesis: carbon dioxide + water sugar + oxygen 6 CO H 2 O C 6 H 12 O O 2 Solar energy Respiration: sugar + oxygen + water C 6 H 12 O O H 2 O 30 steps carbon dioxide + water kcal 6 CO H 2 O Energy Source: Dennis Gardner et al., Physiology of Crop Plants The Iowa State University Press. Ames. 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 75
76 Chemical Composition of Air Element/Compound Chemical Formula Percentage of Composition by Volume Nitrogen N % Oxygen O % Argon Ar 0.9% Carbon dioxide CO % (390 ppm) Neon Ne 0.002% Helium He % Methane CH % Krypton Kr % Hydrogen H % Xenon Xe % 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 76
77 Photosynthesis and Respiration An acre of 100-bushel corn manufactures on average 200 lbs of sugar a day About ¼ of the sugars are used in respiration Respiration uses about 23% of the energy absorbed in photosynthesis (more recent estimates put that number somewhere between 30 to 60%, depending on environment) At maturity, the grain contains about ¼ the total energy used in photosynthesis Transeau, E.N The accumulation of energy in plants. The Ohio Journal of Science. 26: /9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 77
78 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 78
79 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 79
80 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 80
81 8/9/ , 2012, 2013 Chad Lee, Univ. of Kentucky 81
Effects of Corn Population
Effects of Corn Population Dave Heimkes 30-inch row spacing Twin-row spacing Skip-row 2-1-2 or 2-2-2 arrangement Plant Population Through the Years Corn populations have been steadily increasing over the
More information!" #$ %&'(%)#*+,-.%/+'01%20+3',4%56,7808,.8!
Happy Corn Plants=Happy Milk Cows 2014 Mid Atlantic Dairy Grazing Conference Keys to Good Corn Silage Yields Prepared By Kevin Phillips Field Agronomist DuPont Pioneer GA/FL Factors important to Happy
More informationDETERMINING THE GROWTH STAGES OF CORN
DETERMINING THE GROWTH STAGES OF CORN Keith Glewen, Nebraska Extension Educator 1 Restrictions for Use of Adjuvants on Corn 2 3 3 Yield Protecting Factors Yield Building Factors WHY DETERMINE STAGES? 1.
More informationJune, 2007, Volume 7, Issue 6. Available online at:
Corn & Soybean News June, 2007, Volume 7, Issue 6 Available online at: www.uky.edu/ag/cornsoy Cooperating Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant
More informationdaily water use Practically Heat Stress weakened
Thus far in 2011 the Texas Panhandle has experienced recordd drought and record air temperatures. In a period of three days last week the all time record for maximum air temperature was shattered not once,
More informationNutrient Application Tips for No-Till Crop Production
Nutrient Application Tips for No-Till Crop Production Mark Alley W. G. Wysor Professor Emeritus Virginia Tech January 11, 2013 Nutrients Are Part of An Overall Crop Production Program Plant Nutrition Program
More informationCORN INSECTICIDE SEED TREATMENT AND FOLIAR FUNGICIDE EFFECTS ON CORN RESPONSE TO FERTILIZER NITROGEN
CORN IECTICIDE SEED TREATMENT AND FOLIAR FUNGICIDE EFFECTS ON CORN RESPOE TO FERTILIZER NITROGEN S. A. Ebelhar, C. D. Hart, and C. A. Bradley S. A. Ebelhar is an agronomist and C. D. Hart is a research
More informationManaging Through the Drought
Managing Through the Drought Educational Goals for Today s Session Update on current situation and outlook How to assess drought-damaged crops Management considerations for various situations Integrating
More informationRisk vs. Reward: Can We Resolve Row Spacing and Seeding Rate Questions in Soybean?
Risk vs. Reward: Can We Resolve Row Spacing and Seeding Rate Questions in Soybean? Shawn P. Conley Soybean and Wheat Specialist University of Wisconsin, Madison Today s Soybean Production Systems are Dynamic
More informationTermination of Irrigation on Corn. Jos. C. Henggeler 1 ABSTRACT
Termination of Irrigation on Corn Jos. C. Henggeler 1 ABSTRACT A test was conducted for three years on the termination of corn irrigation in southeast Missouri (SEMO). Results showed that the location
More informationAGRONOMY 375 Exam II Key March 30, 2007
AGRONOMY 375 Exam II Key March 30, 2007 6 pts. 1. a) Detassel ear parent (female) rows and specify a single pollen parent in male rows. b) Manage the planting dates of ear and pollen parent lines so as
More informationCritical Yield Factors
Critical Yield Factors Chad Lee, Ph.D. Associate Extension Professor, Grain Crops 1405 Veterans Drive University of Kentucky cdlee2@uky.edu :: www.uky.edu/ag/graincrops :: http://graincrops.blogspot.com/
More informationDETERMINING THE GROWTH STAGES OF CORN AND SOYBEANS
DETERMINING THE GROWTH STAGES OF CORN AND SOYBEANS Keith Glewen, UNL Extension Educator 3 HOW TO DETERMINE STAGES CORN Vegetative - Count Collars Reproductive - Kernel Characteristics SOYBEANS Vegetative
More informationInstitute of Ag Professionals
Institute of Ag Professionals Proceedings of the 2012 Crop Pest Management Shortcourse & Minnesota Crop Production Retailers Association Trade Show www.extension.umn.edu/agprofessionals Do not reproduce
More information2012 Forecasted Corn Yield Potential based on simulations using Hybrid-Maize model
2012 Forecasted Corn Yield Potential based on simulations using Hybrid-Maize model Patricio Grassini, Haishun Yang, and Kenneth G. Cassman Department of Agronomy and Horticulture University of Nebraska-Lincoln
More informationCrop Physiology Crop Water Usage and Fertilizer Uptake. Charles Stichler Professor Emeritus
Crop Physiology Crop Water Usage and Fertilizer Uptake Charles Stichler Professor Emeritus Crop Management Without knowing how a plant grows and develops, it is impossible to make wise decisions Water,
More informationThe industry-wide initiative of doubling
Efficient Management of Water and Nutrients In drip irrigation and fertigation. Fred Below, Tryston Beyrer, Adriano Mastrodomenico and Juliann Seebauer Official Journal of the Fluid Fertilizer Foundation
More informationSubsurface Fertigation In Highly Productive Soils Increases nutrient use and grain yield of corn and soybeans.
Subsurface Fertigation In Highly Productive Soils Increases nutrient use and grain yield of corn and soybeans. Drs. Ross R. Bender and Fred E. Below Official Journal of the Fluid Fertilizer Foundation
More informationAGRONOMY 375 EXAM II. November 7, There are 15 questions (plus a bonus question) worth a total of up to 100 points possible. Please be concise.
Name AGRONOMY 375 EXAM II November 7, 2008 There are 15 questions (plus a bonus question) worth a total of up to 100 points possible. Please be concise. 4 pts. 1. Please note two crop management strategies
More informationEffective Nitrogen and Potassium Banding for Corn with Strip Tillage and High-Clearance Applicators
Effective Nitrogen and Potassium Banding for Corn with Strip Tillage and High-Clearance Applicators Tony J. Vyn, Sarah M. Mueller, Lia Olmedo Pico and T.D. West Agronomy Department, Purdue University Presentation
More information2016 Southern Consultants Meeting High Yield Soybean Production
2016 Southern Consultants Meeting High Yield Soybean Production Daniel H. Poston February 25, 2016 Things That Drive Soybean Yield Light (Temperature) Nutrition Water (Drainage) Pest management What do
More informationSorghum Production For Maximum Yields. Kraig Roozeboom Agronomy Extension Crop Production/Cropping Systems
Sorghum Production For Maximum Yields Kraig Roozeboom Agronomy Extension Crop Production/Cropping Systems Outline Yield formation Hybrid selection Maturity vs. growing season Seed and plant color Resources/tools
More informationCorn Production: A Systems Approach. Sandy Endicott Senior Agronomy Manager, Canada and Latin America
Corn Production: A Systems Approach Sandy Endicott Senior Agronomy Manager, Canada and Latin America Systems Approach There is NOT one magic trick No Silver Bullet to increasing yields It is a multi factor
More informationIrrigation Scheduling Using Crop Water Use Data
G85-753-A Irrigation Scheduling Using Crop Water Use Data This NebGuide describes using the "checkbook" method to schedule irrigations based on crop water use data. C. Dean Yonts, Extension Irrigation
More informationEffect of Crop Stand Loss and Spring Nitrogen on Wheat Yield Components. Shawn P. Conley
Objective: Effect of Crop Stand Loss and Spring Nitrogen on Wheat Yield Components Shawn P. Conley To quantify the affect of percent crop stand loss and spring nitrogen rate on soft red winter wheat yield.
More informationUNIVERSITY OF ILLINOIS AGRONOMY DAY. agronomyday.cropsci.illinois.edu
UNIVERSITY OF ILLINOIS AGRONOMY DAY agronomyday.cropsci.illinois.edu AGRONOMY DAY MAP Tour B Drop Off B1 B2 B3 Tour D Handicap Parking Exhibitor Parking General Parking B4 Tour B Pick Up Lunch Pick Up
More informationNutrient Management in Field Crops MSU Fertilizer Recommendations Crop*A*Syst 2015 Nutrient Management Training
Nutrient Management in Field Crops MSU Fertilizer Recommendations Crop*A*Syst 2015 Nutrient Management Training George Silva - silvag@msu.edu Eaton, Ingham, Barry and Livingston Counties 17 Essential Plant
More informationNitrogen and Potassium Fertilizer Placement Consequences for Corn: A Look at Controlling Factors
Nitrogen and Potassium Fertilizer Placement Consequences for Corn: A Look at Controlling Factors TONY J. VYN (NICK THOMPSON AND LAUREN SCHWARCK) AGRONOMY DEPARTMENT PURDUE UNIVERSITY Optimum Placement
More informationGETTING THE MOST FROM N AND P APPLICATIONS ON PROCESSING CROPS. Larry G. Bundy Dept. of Soil Science Univ. of Wisconsin
GETTING THE MOST FROM N AND P APPLICATIONS ON PROCESSING CROPS Larry G. Bundy Dept. of Soil Science Univ. of Wisconsin MRTN Corn N Rate Guidelines Introduced for the 2006 growing season In response to
More informationextension.missouri.edu Archive version -- See Using Your Soil Test Results
University of Missouri Extension G9111, Reviewed October 1, 1993 Editor's note: Use the XPLOR order form to purchase the printed version of this publication, which includes a sample soil test report. Using
More informationSoil Quality, Nutrient Cycling and Soil Fertility. Ray Ward Ward Laboratories, Inc Kearney, NE
Soil Quality, Nutrient Cycling and Soil Fertility Ray Ward Ward Laboratories, Inc Kearney, NE www.wardlab.com Purposes of Soil Quality Employ new & modified crop management systems Increase efficiency
More informationIrrigation Scheduling: Checkbook Method
Know how. Know now. EC709 Irrigation Scheduling: Checkbook Method Steven R. Melvin, Extension Educator C. Dean Yonts, Extension Irrigation Specialist Irrigation scheduling helps determine when and how
More informationHigh-Yielding Soybean: Genetic Gain Fertilizer Nitrogen Interaction
Kansas Agricultural Experiment Station Research Reports Volume Issue 5 Kansas Field Research Article 4 January 6 High-Yielding Soybean: Genetic Gain Fertilizer Nitrogen Interaction I. A. Ciampitti Kansas
More informationFERTILITY RECOMMENDATIONS
FERTILITY RECOMMENDATIONS Soil fertility is one of the primary yield building components of small grain management. A properly managed fertility program, including recommended fertilization and liming
More informationTop Strip-Till Practices for Corn and Soybean
Top Strip-Till Practices for Corn and Soybean Tony J. Vyn Agronomy Department, Purdue University RTK-guided Strip Tillage for Corn after Soybean Berms after Soybean Harvest and Fall Strip-Till Berm Heights
More informationPlant Nutrient Management. Dave Franzen PhD North Dakota State University Extension Soil Specialist
Plant Nutrient Management Dave Franzen PhD North Dakota State University Extension Soil Specialist All North Dakota crops require the same 14 essential nutrients North Dakota soils supply most these nutrients
More informationProceedings of Indiana Crop Adviser Conference 2004
CHANGES IN NITROGEN USE EFFICIENCY AND SOIL QUALITY AFTER FIVE YEARS OF MANAGING FOR HIGH YIELD CORN AND SOYBEAN D. T. Walters, A. Dobermann, K.G. Cassman, R. Drijber, J. Lindquist, J. Specht, and H. Yang.
More informationQuest for 300 Bushel Corn
Quest for 300 Bushel Corn 9 billion people by 2050 requires a doubling of grain production including corn 300 bu corn produced each year in the U.S. National Corn Growers Contest Quest for 300 Bushel Corn
More informationCorn Stand Establishment
Corn Stand Establishment Jeff Coulter, Ph.D. Extension Corn Specialist jeffcoulter@umn.edu z.umn.edu/corn 1 Overview Hybrid selection Row width Planting rate Planting date Stand establishment 2 Hybrid
More informationGetting the Most out of Your Nitrogen Fertilization in Corn Brent Bean 1 and Mark McFarland 2
Getting the Most out of Your Nitrogen Fertilization in Corn Brent Bean 1 and Mark McFarland 2 With high nitrogen (N) prices, it is essential that producers get the most out of every pound (lb) of N applied.
More informationTWIN AND NARROW ROW WIDTH EFFECTS ON CORN (ZEA MAYS L.) YIELD AND WEED MANAGEMENT
University of Kentucky UKnowledge Theses and Dissertations--Plant and Soil Sciences Plant and Soil Sciences 2013 TWIN AND NARROW ROW WIDTH EFFECTS ON CORN (ZEA MAYS L.) YIELD AND WEED MANAGEMENT Grant
More informationAdvanced Crop Advisers Workshop, Feb , Fargo, ND
Advanced Crop Advisers Workshop, Feb 11-12 2014, Fargo, ND Definition - UNL the placement of small quantities of nutrients in a concentrated zone in close proximity to the point of seed placement at the
More informationR.W. Heiniger Vernon G. James Research and Extension Center North Carolina State University
R.W. Heiniger Vernon G. James Research and Extension Center North Carolina State University The Good Better Hybrids allow for Increasing Light Use Higher Plant Populations Row Width and Plant Spacing
More informationSoil Amendment and Foliar Application Trial 2016 Full Report
Soil Amendment and Foliar Application Trial 216 Full Report Overview: This report summarizes Ohio State Soil Fertility Lab s efforts of a third party evaluation of proprietary soil amendments and foliar
More informationSoil Amendment and Foliar Application Trial 2015 Full Report. Overview:
Soil Amendment and Foliar Application Trial 215 Full Report Overview: In 215, the Soil Fertility Lab at Ohio State started offering a third party evaluation of proprietary soil amendments and foliar applications
More informationRick Mascagni and Kylie Cater
Influence of Hybrid, Seeding Rate, and Nitrogen Fertilizer Rate on Yield Performance of Two Corn Hybrids Differing in Ear Flex Under Varying Soil Moisture Conditions on Mississippi River Soils Rick Mascagni
More information2005 CROP PRODUCTION EXAM Purdue Invitational Crops Contest
2005 CROP PRODUCTION EXAM Purdue Invitational Crops Contest Instructions: READ EACH MULTIPLE-CHOICE STATEMENT CAREFULLY AND THEN MARK THE ANSWER ON THE SCORE SHEET THAT CORRESPONDS TO THE BEST ANSWER.
More information2004 CROP PRODUCTION EXAM Area Crops Contest
2004 CROP PRODUCTION EXAM Area Crops Contest Instructions: READ EACH MULTIPLE-CHOICE STATEMENT CAREFULLY AND THEN MARK THE ANSWER ON THE SCORE SHEET THAT CORRESPONDS TO THE BEST ANSWER. YOU MAY USE A CALCULATOR
More informationThe Mid-Term Report Card: What does Corn Ear-Leaf Nutrient Analysis Tell Us?
The Mid-Term Report Card: What does Corn Ear-Leaf Nutrient Analysis Tell Us? Tony J. Vyn 1, I. Ciampitti 2, P. Kovacs 3, K. Chen 1, S.M. Mueller 1, and T. D. West 1 1 Purdue University, 2 Kansas State
More informationImproving Nutrient Management through Advanced Irrigation Management
Improving Nutrient Management through Advanced Irrigation Management James Adkins Irrigation Scientist Carvel Research and Education Center Georgetown, DE 1 Why Irrigate?? To maximize yield, evapotranspiration
More information2005 CROP PRODUCTION EXAM Purdue Invitational Crops Contest
2005 CROP PRODUCTION EXAM Purdue Invitational Crops Contest Instructions: READ EACH MULTIPLE-CHOICE STATEMENT CAREFULLY AND THEN MARK THE ANSWER ON THE SCORE SHEET THAT CORRESPONDS TO THE BEST ANSWER.
More informationNitrogen and Phosphorus Fertilization of Corn
Publication 424-027 Nitrogen and Phosphorus Fertilization of Corn M. M. Alley, Extension Soil Fertility Specialist Marvin E. Martz, Jr., Former Graduate Research Assistant Paul H. Davis, Extension Agent,
More informationIrrigated Spring Wheat
Southern Idaho Fertilizer Guide Irrigated Spring Wheat Brad Brown, Jeffrey Stark, and Dale Westermann These fertilizer guidelines are based on relationships established between University of Idaho soil
More informationFIELD EXPERIMENT HISTORY
115 Personnel: Location: Supported By: J. G. Lauer, J.M. Gaska, K. D. Kohn, J.T. Hopf Arlington, WI HATCH FIELD EXPERIMENT HISTORY Title: Tillage in Corn and Soybean Production Systems Experiment: 17Tillage
More informationAgronomic Management for Optimizing Corn Yields
Agronomic Management for Optimizing Corn Yields Larry Hendrickson John Deere Technology Innovation Center 1 Corn Breeders School Agronomic Challenge John Deere has produced new products that are bigger,
More information2007 ARKANSAS CORN AND GRAIN SORGHUM RESEARCH VERIFICATION PROGRAM
2007 ARKANSAS CORN AND GRAIN SORGHUM RESEARCH VERIFICATION PROGRAM Lawson, K.W. Corn and Grain Sorghum Verification Coordinator, Arkansas Cooperative Extension, Little Rock, Arkansas 72203 Guiling, P.S.
More informationSidedressing Potassium and Nitrogen on Corn Evaluations made on yield effects.
Sidedressing Potassium and Nitrogen on Corn Evaluations made on yield effects. Dr. Robert D. Miller Official Journal of the Fluid Fertilizer Foundation Vol. 5, No. 4, Issue #98 DOWNLOAD Summary: Results
More informationAGRONOMY 375 EXAM III. December 10, 11 and 12, points possible
Name AGRONOMY 375 EXAM III December 10, 11 and 12, 2007 100 points possible There are 16 questions plus a bonus question, each of which requires a short answer. Please be concise. Best wishes for your
More informationThe Amazing 2018 Soybean Season: Lessons for ISA Webinar
The Amazing 218 Soybean Season: Lessons for 219 ISA Webinar December 18, 218 Emerson Nafziger Crop Sciences University of Illinois ednaf@illinois.edu Million acres 14 Illinois corn and soybean acreage,
More informationDo new corn hybrids and yield levels influence potassium fertilizer management?
2009 Integrated Crop Management Conference - Iowa State University 125 Do new corn hybrids and yield levels influence potassium fertilizer management? Antonio P. Mallarino, professor, Agronomy, Iowa State
More informationEmergence Uniformity in Corn: Is it Essential for Ear Size Consistency and Improved Yield?
Emergence Uniformity in Corn: Is it Essential for Ear Size Consistency and Improved Yield? Tony J. Vyn Graduate Students: Mercedes Murua,, Missy Bauer, Ann Kline, Jason Brewer and Martin Gonzalo Agronomy
More informationInstitute of Ag Professionals
Institute of Ag Professionals Proceedings of the 2013 Crop Pest Management Shortcourse & Minnesota Crop Production Retailers Association Trade Show www.extension.umn.edu/agprofessionals Do not reproduce
More informationPurdue Crops Invitational
Purdue Crops Invitational 2009 2009 Exam 1. Herbicide effectiveness is not dependent upon A. soil organic matter content B. soil ph C. application procedure D. using the maximum rate 2. Manure placed on
More informationAGRONOMY 375 EXAM III. December 16, points possible
Name AGRONOMY 375 EXAM III December 16, 2009 100 points possible There are 16 questions plus a bonus question, each of which requires a short answer. Please be concise. Best wishes for your success! 6
More informationRecent trends in nitrogen fertilizer and water use in irrigated corn
Section B Recent trends in nitrogen fertilizer and water use in irrigated corn Water, nitrogen, and corn yields Water plays a crucial role in the life of plants. Of all the resources that plants need to
More informationNITROGEN VALUE OF POTATO AND ONION SLUDGE FOR CORN PRODUCTION
NITROGEN VALUE OF POTATO AND ONION SLUDGE FOR CORN PRODUCTION Clinton C. Shock, Erik B. G. Feibert, Monty Saunders, and Gary Schneider Malheur Experiment Station Oregon State University Ontario, Oregon
More informationIrrigation Management 101 Steve Melvin University of Nebraska - Extension
Irrigation Management 101 Steve Melvin University of Nebraska - Extension Why Irrigate Irrigation increases yields and profitability Managing precipitation variability Higher and more consistent yields
More information2009 Cover Crop Termination Study
2009 Cover Crop Termination Study Figure 1 Rolling & crimping of winter rye cover crop. Dr. Heather Darby Erica Cummings, Rosalie Madden & Amanda Gervais 802-524-6501 2009 Cover Crop Termination Study
More informationCORN & SOYBEAN AGRONOMY UPDATES. Angela McClure December 2015
CORN & SOYBEAN AGRONOMY UPDATES Angela McClure December 2015 New Publications/Resources SP781; 2015 Grain Sorghum Quick Facts; printed and on utcrops.com How to submit a meeting for CCA points (John Wilson)
More informationCONVENTIONAL, STRIP, AND NO TILLAGE CORN PRODUCTION UNDER DIFFERENT IRRIGATION CAPACITIES
CONVENTIONAL, STRIP, AND NO TILLAGE CORN PRODUCTION UNDER DIFFERENT IRRIGATION CAPACITIES Dr. Freddie Lamm Research Irrigation Engineer Email: flamm@ksu.edu Dr. Rob Aiken Research Crop Scientist Email:
More informationInstitute of Ag Professionals
Institute of Ag Professionals Proceedings of the 2013 Crop Pest Management Shortcourse & Minnesota Crop Production Retailers Association Trade Show www.extension.umn.edu/agprofessionals Do not reproduce
More informationBetween a Rock and a. Hard Place. Corn Profitability
Corn Profitability Between a Rock and a Image source: http://www.thrivewithsimon.co.uk Hard Place RL (Bob) Nielsen Extension Corn Specialist Purdue Agronomy 765.494.4802 rnielsen@purdue.edu @PurdueCornGuy
More informationCORN & SOYBEAN AGRONOMIC UPDATES. Angela McClure December 2014
CORN & SOYBEAN AGRONOMIC UPDATES Angela McClure December 2014 2014 at a glance.. 880,000 acres corn harvested; 168 bu/a 1.58 million acres soybean harvested; 46 bu/a 475,00 acres wheat harvested; 66 bu/a
More informationCorn & Soybean Science Group Newsletter
Corn & Soybean Science Group Newsletter Available online at: www.uky.edu/ag/cornsoy Cooperating Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil
More informationCORN AND SOYBEAN UPDATES FOR Angela McClure Corn and Soybean Specialist
CORN AND SOYBEAN UPDATES FOR 2013 Angela McClure Corn and Soybean Specialist 2012 Rainfall Patterns (total inches by month) 7 6 Jackson Milan Inches 5 4 3 2 1 0 Creative Double Cropping paid off AG2.9
More informationPreview of Summer 2014 Revision of Corn N Recommendations. Dave Franzen, PhD Extension Soil Specialist North Dakota State University, Fargo, ND
Preview of Summer 2014 Revision of Corn N Recommendations Dave Franzen, PhD Extension Soil Specialist North Dakota State University, Fargo, ND Current published N recommendation for corn- N Rate (pounds
More informationCritical Steps for Optimum Soil Fertility
2/8/12 Critical Steps for Optimum Soil Fertility Today s Outline Virginia No-Till Alliance Winter Conference Colonial Heights February 6, 212 Ø Figuring out what nutrients we need. Ø Phosphorus Ø Potassium
More informationTiming of Foliar Applications
Timing of Foliar Applications Crop School Gallatin, Madison/Jefferson, and Broadwater Extension February 27, 2013 by Clain Jones, Extension Soil Fertility Specialist and Kathrin Olson-Rutz, Research Associate
More informationWATER SUPPLY & DEMAND DAN KRIEG CROP PHYSIOLOGIST
WATER SUPPLY & DEMAND DAN KRIEG CROP PHYSIOLOGIST INCHES SOUTHERN HIGH PLAINS 10 9 8 13-14 inches during growing season 40-45 inches during growing season PREC PET 7 6 5 4 3 2 1 0 JAN FEB MAR APR MAY JUNE
More informationNITROGEN FERTILIZER MANAGEMENT OF TEMPORARILY FLOODED SOILS TO IMPROVE CORN PRODUCTION AND REDUCE ENVIROMENTAL N LOSS
NITROGEN FERTILIZER MANAGEMENT OF TEMPORARILY FLOODED SOILS TO IMPROVE CORN PRODUCTION AND REDUCE ENVIROMENTAL N LOSS Brendan Zurweller Graduate Research Assistant Kelly Nelson Research Agronomist Peter
More informationThis presentation is available at Borges, University of Wisconsin Agronomy
SOYBEAN YIELD IS A COMPLEX SERIES OF INTERACTIONS Management Soil type Fertility Herbicide Weeds YIELD Weather Insects Variety Diseases SCN WISCONSIN SOYBEAN PRODUCTION KEYS TO SUCCESS Fertilize and lime
More information(IRRIGATED & & DRYLAND
Breaking Soybean Yield Barriers: Integrating Crop Production Practices & Comprehensive Fertilization Strategies a Cropping System Approach (IRRIGATED & DRYLAND Research Studies) Summary Two soybean research
More informationPurpose and Introduction:
Comparison of Crop Water Consumptive Use of,, and Jenny Rees, UNL Extension and Daryl Andersen, Little Blue Natural Resources District Purpose and Introduction: The purpose of this study is to compare
More informationMid-March, 2007, Volume 7, Issue 4. Available online at:
Corn & Soybean News Mid-March, 2007, Volume 7, Issue 4 Available online at: www.uky.edu/ag/cornsoy Cooperating Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology,
More informationEnvironmentally Sustainable Utilization of Nitrogen on Corn 2015
Environmentally Sustainable Utilization of itrogen on Corn 2015 Purpose: To improve nitrogen use efficiency for sustainable corn production, while enhancing the environment. This project will evaluate
More informationEfficient Management of Water and Nutrient Resources: Assessing the Potential for Drip Irrigation Fertigation
Efficient Management of Water and Nutrient Resources: Assessing the Potential for Drip Irrigation Fertigation Fred Below, Tryston Beyrer and Ross Bender Crop Physiology Laboratory Department of Crop Sciences,
More informationFertilizer Placement Options Demonstration
Fertilizer Placement Options Demonstration -- UNL South Central Agricultural Laboratory -- Final Report, Jan. 21 Glen P. Slater Richard B. Ferguson Rationale Nebraska corn producers continually strive
More informationNitrogen Management for Winter Wheat: Principles and Recommendations
Nitrogen Management for Winter Wheat: Principles and Recommendations M. M. Alley, Soil and Crop Management Research, Virginia Tech Peter Scharf, Research Associate, Virginia Tech D. E. Brann, Extension
More informationKentucky Silage Corn Hybrid Performance Report: 2011
COOPERATIVE EXTENSION SERVICE UNIVERSITY OF KENTUCKY COLLEGE OF AGRICULTURE LEXINGTON, KY 4546 AGRICULTURE & NATURAL RESOURCES a Kentucky Silage Corn Hybrid Performance Report: 211 Table 1. Corn Hybrid
More informationPreview of Summer 2014 Revision of Corn N Recommendations and N Issues
Preview of Summer 2014 Revision of Corn N Recommendations and N Issues Dave Franzen, PhD Extension Soil Specialist North Dakota State University, Fargo, ND GreenSeeker Red Edge NDVI Crop Circle Red NDVI
More informationHybrid selection Crop rotation Planting date Stand establishment Seeding rate Row spacing
Planting Agronomics and Crop Rotations for High-Yield Corn Barriers to Bushels Meeting Fergus Falls, MN March 8, 2011 Jeff Coulter - Extension Corn Agronomist coult077@umn.edu www.extension.umn.edu/corn
More informationEvaluation of Mosaic MicroEssentials Sulfur Fertilizer Products for Corn Production
Evaluation of Mosaic MicroEssentials Sulfur Fertilizer Products for Corn Production 2010 Research Report Dr. John Sawyer and Daniel Barker Professor and Assistant Scientist Department of Agronomy Iowa
More informationInstitute of Ag Professionals
Institute of Ag Professionals Proceedings of the 2012 Crop Pest Management Shortcourse & Minnesota Crop Production Retailers Association Trade Show www.extension.umn.edu/agprofessionals Do not reproduce
More informationAGRONOMY 375 Exam II Key November 2, 2018
1 AGRONOMY 375 Exam II Key November 2, 2018 3 pts 1. a) Latitude, previous crop residue, and soil drainage all influence soil temperature, which is critical in determining early season corn crop growth
More informationClain Jones
FERTILIZER TIMING AND PLACEMENT Extension Agent Agronomy College September 24, 2014 Clain Jones clainj@montana.edu 994-6076 MSU Soil Fertility Extension Goal Describe optimal fertilization timing and placement
More informationPotassium & Potassium Management. Carrie Laboski Department of Soil Science UW- Madison
Potassium & Potassium Management Carrie Laboski Department of Soil Science UW- Madison Potassium Cycle Havlin et al., 2001 K release during mineral weathering Recolored from Fig. 6.9 in Havlin et al. (1999)
More informationOptimizing rate of nitrogen for corn - how good can it be?
Optimizing rate of nitrogen for corn - how good can it be? James J. Camberato www.soilfertility.info jcambera@purdue.edu Objective of better N management Choose a combination of source, placement, timing,
More informationTwo soil areas approximately 1 km (0.6 mile) apart were selected. Agronomy Department. High Rates of Urea Fertilizer for Corn (Zea mays L.
High Rates of Urea Fertilizer for Corn (Zea mays L.) on Two Soils, 1969-19711 Russell K. Stivers Agronomy Department Purdue University, Lafayette, Indiana 47907 Abstract Five rates of nitrogen from urea
More informationFertilizer Management
2 5 Section 5 Fertilizer Management Lloyd Murdock, John Grove, and Greg Schwab The most important first step in your fertilizer management program is to take a soil sample. Except for nitrogen (N), your
More information106 N. Cecil Street Bonduel, WI (715) Submitted For:
16 N. Cecil Street Bonduel, WI 5417 (715) 758-178 bonduel@agsource.com Submitted By: BN77 AgSource Bonduel 16 N Cecil Street Bonduel, WI 5417 Submitted For: AgSource Report Example 135 Enterprise Drive
More information