Improving Nutrient Management through Advanced Irrigation Management
|
|
- Ethan Glenn
- 5 years ago
- Views:
Transcription
1 Improving Nutrient Management through Advanced Irrigation Management James Adkins Irrigation Scientist Carvel Research and Education Center Georgetown, DE
2 1
3 Why Irrigate?? To maximize yield, evapotranspiration (ET) must be maximized Applying water in EXCESS of ET demand will NOT increase yield Goal: To apply enough water to meet the crop s ET demand and do so efficiently as possible
4 Soil Properties Available Water Holding capacity (AWC) Soil water reservoir Use irrigation to manage the reservoir Water intake rates Influences sprinkler selection Restrictive soil layers Limit water movement and root zone Limit soil water reservoir size
5 Soil Water Reservoir Saturation Water Available Capacity 100% 0% Water Available to Plants at low stress Water Available to Plants with stress Field Capacity 50% Minimum Balance Permanent Wilting Oven Dry
6 Soil Textures Medium and fine textured soils More readily managed substantial water holding capacity 10 cm to 15 cm in top 1 m. Coarse textured soils More difficult to manage Relatively small water holding capacity Less than 10 cm in top 1 m.
7 Available Water Holding Capacity Based on Soil Texture Available Water Holding Capacity Soil Texture (mm of water / mm of soil) Coarse Sand Fine Sand Loamy Sand Sandy Loam Loam and Silt Loam
8 Delaware Irrigated vs. Rain-fed Corn Rain-fed Yield Range: bu./ac ( Mg/ha) Applied N: lbs./ac ( kg/ha) Crop N Removal: lbs./ac (0 156 kg/ha) Estimated NUE: lbs./bu. ( kg/mg) Irrigated Yield Range: bu./ac ( Mg/ha) Applied N: lbs./ac ( kg/ha) Crop N Removal: lbs./ac ( kg/ha) Estimated NUE: lbs./bu. ( kg/mg) 7
9 Methods for Improving Irrigation Efficiency Scheduling Crop water use curves Checkbook Method ET based schedulers Soil Moisture Monitoring Crop Stress/Crop Canopy Temperature Application Efficiency Sprinkler/emitter uniformity Nozzle Type, Spacing, mounting location Calibration Fertigation 8
10 Crop Water Use (in/day) ET and Growth Stage Soybeans Germination and Seedling Germination and Seedling Reproductive Activity Flowering Podding Seed Fill Maturity Apr 10-May 9-Jun 9-Jul 8-Aug 7-Sep 7-Oct Date
11 Crop Water Use (in/day) ET and Growth Stage Corn leaf Silking Blister Kernel 0.4 Beginning Dent Maturity Apr 10-May 9-Jun 9-Jul 8-Aug 7-Sep 7-Oct Date
12 Checkbook Soil Water Balance Beginning soil water balance inches Effective rainfall + inches Net irrigation + inches Crop water use - inches Current soil water balance* = inches * The current soil water balance can be no larger than the available water capacity of the active crop root zone.
13 Practical Challenges Crop Water Use Curves Many Assumptions Assumes: Consistent daily water use. No accounting for reduced water use (cloudy/cool days) Assumes: 100% of irrigation and rainfall is effective. Typically a problem when irrigating in small frequent amounts. Assumes: Irrigation system is applying according to calibration chart. 50% applying less than 80% of calibration chart 12
14 Evapo-transpiration Based Irrigation Schedulers Uses weather station data to calculate daily Etref.. Temp, Humidity, Solar Radiation, Wind, Soil Moisture level. Determines crop growth stage based on planting date. Uses standard crop coefficients - KC ETref x KC = Etcrop User enters soil data to determine available water. Can be online based or require daily user input. KanSched, Azsched, Irrigator Pro, Colorado State, DE DIMS, CA CIMIS, MSU, Ag Fleet, etc. 13
15 14
16 15
17 Sandy Loam FC 14%, PWP 9% 18 Managed Root Zone 16
18 Loamy Sand FC 11%, PWP 7% 12 Managed Root Zone 17
19 Practical Challenges ET Based Schedulers Many Assumptions Assumes: Daily crop water use rate will continue. Future water use forecast relies on past ET rates. Assumes: Uniform soil type, available water capacity across field. Uniform soil profile Assumes: Irrigation system is applying according to calibration chart. 50% applying less than 80% of calibration chart 18
20 System Calibration and Sprinkler Selection 19
21 The results of over 400 system evaluations in Delaware, found over 50% applied 20% less water than the timer setting charts predicted. 20
22
23 Irrigation system evaluation. Grower Magee Farms Farm/System 6 Tower Reinke Date of evaluation November 2, 2010 The system was evaluated by laying out two radial lines of cans, 5 apart, starting from the first tower. Each can is 5 inches in diameter, and they were spaced 10 feet apart. Where possible, the system was evaluated with the end gun operating, with measurements made out to the end of the end-gun s range. The system speed was measured by timing it over a measured distance. Research and Education Center County Seat Highway Georgetown, Delaware Telephone: (302) Timer: 32% Pressure: 22 psi at pivot Estimated full circle: hrs 2 lines of cans 5 apart 10 ft spacing GPS at pivot. N W Air temperature: 54 F Wind speed: 5 mph A number of performance factors can be measured by such tests. These include the average depth of irrigation applied; whether the system is irrigating uniformly; and whether there are problems with the system, such as parts of it over or under-applying water. Results: Overall Coefficient of Uniformity, CU, (area weighted): 88.2% Line 1 CU: 89.8% Line 2 CU: 89.2% Average irrigation depth (area weighted): 0.35 inch Flow Meter Readings GPM: 525 Pipe Thickness:.119 Average flowrate measured by can test: 531 Flowmeter versus measured percentage: 99% Manufacturers predicted flowrate: 600 A chart of measured irrigation depth along the system is shown on the next page. Also included is a chart showing irrigation depth as it would vary with timer setting, based on the measured irrigation depth, along with the depth specified by the manufacturer. Comments: A typical CU for a center pivot that is operating well should be within the range of 85% to 92%. The measured CU of 88.2% is good. There appears to be a lower flowrate than the system was designed for, this is also reflected in the 22 psi operating pressure versus the 39 psi design. The measured irrigation rate was less than the manufacturer s chart predicted. Please use the attached measured timer setting chart vs. irrigation rate for the future management of this system. Overall, this system should receive a grade of B+. Items that require immediate attention: Leak at overhang For questions or comments regarding this evaluation, contact James Adkins (302) ext. 588 or adkins@udel.edu.
24 23
25 24
26 25
27 An irrigation system can only apply fertilizer as uniformly as it applies water.
28
29 Select Sprinkler Package for Field Conditions Consider: application efficiency sprinkler spacing diameter of throw instantaneous application rate/soil infiltration rate peak application rate potential for runoff, soil type/topography
30
31 Estimated Water Application Efficiencies Sprinkler/nozzle Type Application Runoff Efficiency Potential High Pressure Impact Low Low Pressure Impact Low Pressure Spray (on top of pipeline) Low Pressure Spray (truss rod height) Low Pressure Spray (3-7ft off the ground) Low Pressure Spray (LEPA bubble mode) High
32 Peak Application Rates System Length = 1300 ft Flow Rate = 800 gpm Water Application = 1.0 inch Low Pressure Spray Rotating Spray Low Pressure Impact High Pressure Impact Water Application 4 Time (min)
33 Canopy Generally Reduces Wetted Diameter and Increases Application Rate
34 Drops get hung up on crop Non-horizontal Water Application Pattern
35 In-Canopy Water Distribution Pattern Corn Height 8-10 ft. Nozzle Spacing 12.5 ft Nozzle Height 42 in. Change in Soil Water Content, % Row Number
36 Soil Moisture Sensing 35
37 Depths of Sample Soil and Root Zone Dependent For sandy loams 15cm, 30cm, 45cm are sufficient On deeper soils, some go to 90cm even 150cm Logged sensors 3 depths and 1 site per 15 ha. 2 sites minimum per field Log frequency 4/day minimum Non-logging 2 depths, 1 site per 10 ha. Sample 1 per week minimum
38 Soil Moisture Measurement with a Non-Logging Instrument can give misleading information
39
40 15cm 30cm 45cm 9mm 6mm 6mm 6mm 9mm 6mm 6mm 6mm 13mm 7mm 32mm 13mm 6mm Silking Blister Milk
41 15cm 30cm 45cm 10mm 10mm 10mm 10mm 10mm 11mm 14mm 6mm 9mm 25mm Dough Dent
42 Soil Moisture Sensing Advantages Actual value Not an estimate Does not require accurate rooting depth determination Functions with an improperly calibrated irrigation system Runoff, canopy evaporation, leaching accounted for Disadvantages Expensive Time Consuming Requires precise site selection Difficult to forecast future demands 41
43 The Ideal Management Tool Meteorological Forecast ET Scheduler Soil Moisture Level Real Time Irrigation Recommendation Fertigation Plan 42
44 Thank You James Adkins University of Delaware Carvel Research and Ed. Center Georgetown, DE
Irrigation 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 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 informationGetting More out of Irrigation
Getting More out of Irrigation Lyndon Kelley MSU Extension / Purdue University Irrigation Management Agent St. Joseph Co. MSU Extension, 612 E. Main St., Centreville, MI 49032 kelleyl@msu.edu, 269-467-5511
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 informationAir. Water. Minerals (rocks)
Irrigation Fundamentals R. Troy Peters, Ph.D. WSU Extension Irrigation Engineer Demonstration Composition of Soil Air Water Minerals (rocks) Soil Water Saturation Field Capacity (FC) Excess Water Permanent
More informationBasic Irrigation Scheduling Tools & Irrigation System Evaluation
Basic Irrigation Scheduling Tools & Irrigation System Evaluation Lyndon Kelley MSU Extension / Purdue University Irrigation Management Agent St. Joseph Co. MSU Extension, 612 E. Main St., Centreville,
More informationEconomics of Irrigation Ending Date for Corn 1
Economics of Irrigation Ending Date for Corn 1 Summary Mahbub Alam 2, Troy J. Dumler, Danny H. Rogers, and Kent Shaw Professor and Extension Specialist, Extension Agricultural Economist, SW Research- Extension
More informationECONOMICS OF IRRIGATION ENDING DATE FOR CORN: USING FIELD DEMONSTRATION RESULTS
ECONOMICS OF IRRIGATION ENDING DATE FOR CORN: USING FIELD DEMONSTRATION RESULTS Mahbub Alam, Extension Irrigation Specialist, Kansas State University, SW Research-Extension Center, Garden City, KS. Phone:
More informationEstimating Irrigation Water Requirements to Optimize Crop Growth
Estimating Irrigation Water Requirements to Optimize Growth FS-447 2014 Why Estimate Water Needs? Predicting water needs for irrigation is necessary for developing an adequate water supply and the proper
More informationDistance from inlet end (ft)
Advance Movement of water from the inlet end to the downstream end Curve of Time vs. Distance is NOT linear Rule-of-Thumb: 1/3 of the total advance time is needed to reach midpoint of the furrow length
More informationAir. Water. Minerals (rocks)
Water Needs and Irrigation Timing for Green Peas R. Troy Peters, Ph.D. WSU Extension Irrigation Engineer Composition of Soil Air Water Minerals (rocks) Soil Water Saturation Field Capacity (FC) Excess
More informationConsiderations for Nozzle Package Selection for Center Pivots
Considerations for Nozzle Package Selection for Center Pivots Danny H. Rogers Extension Irrigation Engineer Biological and Agricultural Engineering Mahbub Alam Extension Irrigation Engineer Southwest Research
More informationSensor Strategies in Cotton. Stacia L. Davis, Ph.D. Assistant Professor Irrigation Engineering LSU AgCenter
Sensor Strategies in Cotton Stacia L. Davis, Ph.D. Assistant Professor Irrigation Engineering LSU AgCenter SDavis@agcenter.lsu.edu 80% 20% Introduction Comparing 2010 to 2014 totals Water Use, 2014 9,295
More informationINFLUENCE OF NOZZLE PLACEMENT ON CORN GRAIN YIELD, SOIL MOISTURE AND RUNOFF UNDER CENTER PIVOT IRRIGATION
INFLUENCE OF NOZZLE PLACEMENT ON CORN GRAIN YIELD, SOIL MOISTURE AND RUNOFF UNDER CENTER PIVOT IRRIGATION Joel P. Schneekloth and Troy Bauder Regional Irrigation and Water Quality Specialists Colorado
More informationCorn and Soybean Irrigation Guidelines
mississippi-crops.com http://www.mississippi-crops.com/2016/05/27/corn-and-soybean-irrigation-guidelines/ Corn and Soybean Irrigation Guidelines By Jason Krutz and Dan Roach As we traveled through Tunica
More informationIrrigation Scheduling for Urban and Small Farms
Irrigation Scheduling for Urban and Small Farms Urban and Small Farm Workshop February 18, 2015 Presentation by L. Niel Allen Extension Irrigation Engineer n.allen@usu.edu http://extension.usu.edu/irrigation/
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 informationCrop Water Requirement. Presented by: Felix Jaria:
Crop Water Requirement Presented by: Felix Jaria: Presentation outline Crop water requirement Irrigation Water requirement Eto Penman Monteith Etcrop Kc factor Ks Factor Total Available water Readily available
More informationField Day - University of Wyoming R&E Center Adams Ranch. Saturday, June 15, Sheridan, WY
o Why Irrigation Scheduling? o Irrigation Efficiency o Water Use Efficiency (WUE) o Strategies for Irrigation Scheduling o Irrigation Research @ UW o Alfalfa x Irrigation o Limiting Water and Yield WHY
More informationSoybean Irrigation Management
Soybean Irrigation Management Lyndon Kelley MSU Extension / Purdue University Irrigation Management Agent St. Joseph Co. MSU Extension, 612 E. Main St., Centreville, MI 49032 Cell 269-535-0343, kellyl@msu.edu,
More informationBIG HORN BASIN IRRIGATION WATER MANAGEMENT P ROGRAM
BIG HORN BASIN IRRIGATION WATER MANAGEMENT P ROGRAM Lateral Move Sprinkler System B I G H O R N B A S I N I R R I G A T I O N W A T E R M A N A G E M E N T P R O G R A M Looking at a New System: The Systems
More informationTwo on farm irrigation water management of corn demonstrations were conducted in Colorado County in 2011 with:
Corn Irrigation Water Management Using ET and Soil Moisture Sensors Texas AgriLife Extension Service Colorado County, 2011 Cooperators: Mahalitc Brothers Farms, Fitz Leopold Charles Swanson, Extension
More informationBasic Types of Irrigation Systems. Surface irrigation Subsurface irrigation Sprinkler irrigation Drip/trickle irrigation
Irrigation systems Basic Types of Irrigation Systems Surface irrigation Subsurface irrigation Sprinkler irrigation Drip/trickle irrigation Subsurface Irrigation Also call subirrigation Artificial regulation
More informationNutrition of Horticultural Crops Measurements for Irrigation. Lincoln Zotarelli Horticultural Sciences Department University of Florida Spring 2015
Nutrition of Horticultural Crops Measurements for Irrigation Lincoln Zotarelli Horticultural Sciences Department University of Florida Spring 2015 Principles of plant nutrition Principle 1. Plants take
More informationMichael Cahn and Barry Farrara, UC Cooperative Extension, Monterey Tom Bottoms and Tim Hartz, UC Davis
Water Use of Strawberries on the Central Coast Michael Cahn and Barry Farrara, UC Cooperative Extension, Monterey Tom Bottoms and Tim Hartz, UC Davis As acreage of strawberries has steadily increased in
More informationLAT IS ALL we sell in agriculture. Whether
B-6152 6-04 Grain Sorghum Irrigation Leon New* LAT IS ALL we sell in agriculture. Whether the enterprise ER is corn, cattle, cauliflower, cotton, or grain sorghum water is essential for its production
More informationCENTER PIVOT IRRIGATION
Handy Pocket Guide sprinkler technology SAVE WATER, SAVE ENERGY and do a better job of irrigating. water application solutions for CENTER PIVOT IRRIGATION Copyright 2005 Nelson Irrigation Corporation 1
More informationMonitoring soil moisture helps refine irrigation management
Enviroscan soil moisture sensors like the one shown, that monitor on a continuous basis, provide more information that can be valuable. Monitoring soil moisture helps refine irrigation management Blaine
More informationIrrigation Scheduling. Irrigation Scheduling Checkbook Method. Think of your soil as a bank. www. msu.edu
Think of your soil as a bank Irrigation Scheduling Lyndon Kelley MSU Extension/Purdue University Irrigation Management Educator 269-467-5511 www. msu.edu - find St. Joseph Co. - then hit the Irrigation
More informationTimmy Mann Agronomist B.B. Hobbs, Inc Liberty Acres Fertilizer Corp. Palmetto, Fl; Darlington, SC; Clinton, NC. *South Carolina PE Registration only
Timmy Mann Agronomist B.B. Hobbs, Inc Liberty Acres Fertilizer Corp Palmetto, Fl; Darlington, SC; Clinton, NC *South Carolina PE Registration only BB Hobbs Inc. Fertigation 1 Wisdom for the day Gail
More informationUSING CPNOZZLE FOR SPRINKLER PACKAGE SELECTION
USING CPNOZZLE FOR SPRINKLER PACKAGE SELECTION Bill Kranz Associate Professor Biological Systems Engineering University of Nebraska Northeast Research and Extension Center Norfolk, Nebraska VOICE: 402-370-4012
More informationKanSched An ET-Based Irrigation Scheduling Tool for Kansas Summer Annual Crops
KanSched An ET-Based Irrigation Scheduling Tool for Kansas Summer Annual Crops Gary A. Clark, Professor Danny H. Rogers, Extension Engineer, Irrigation Steven Briggeman, Extension Assistant Biological
More informationUsing Evapotranspiration Reports for Furrow Irrigation Scheduling IRRIGATION MANAGEMENT S E R I E S
IRRIGATION MANAGEMENT S E R I E S Using Evapotranspiration Reports for Furrow Irrigation Scheduling Danny H. Rogers Extension Agricultural Engineer Cooperative Extension Service Manhattan, Kansas Efficient
More informationCOMPARISON OF SDI AND SIMULATED LEPA SPRINKLER IRRIGATION FOR CORN
COMPARISON OF SDI AND SIMULATED LEPA SPRINKLER IRRIGATION FOR CORN Dr. Freddie R. Lamm, P.E. Professor Research Irrigation Engineer Kansas State University Northwest Research-Extension Center Colby, Kansas
More informationIn most areas of California, a mature walnut orchard
159 20 Irrigation Scheduling for Walnut Orchards DAVID A. GOLDHAMER In most areas of California, a mature walnut orchard has the potential to use about 42 acre-inches of water per acre. This equates to
More informationTheHelper, A User-Friendly Irrigation Scheduling Tool In Florida and Hawaii A. Fares 1, M. Zekri 2 and L.R. Parsons 2. Abstract
TheHelper, A User-Friendly Irrigation Scheduling Tool In Florida and Hawaii A. Fares 1, M. Zekri 2 and L.R. Parsons 2 1 University of Hawaii-Manoa; 2 University of Florida. Abstract Efforts are being made
More informationNon-irrigated Irrigated Difference. Early 27.1 bushels per acre 33.8 bushels per acre 6.7 bushels per acre
University of Missouri Extension G4420, Reviewed October 1993 Editor's note The printed version of this publication includes illustrations. Irrigating Soybeans Diana G. Helsel and Zane R. Helsel Department
More informationIrrigating Efficiently: tools, tips & techniques. Steve Castagnoli, OSU Extension Service
Irrigating Efficiently: tools, tips & techniques Steve Castagnoli, OSU Extension Service Tonight s class: Why plants need water When plants need water How much water plants need Soil as a reservoir of
More informationIntroducing the new 3030 Series Sprinkler
pivot pocket guide Nelson Irrigation Corporation offers a full range of water application solutions for mechanized irrigation. From control valves to pivot sprinklers, and pressure regulators to end guns
More informationET-BASED IRRIGATION SCHEDULING
Proceedings of the 23rd Annual Central Plains Irrigation Conference, Burlington, CO., February 22-23, 2011 Available from CPIA, 760 N.Thompson, Colby, Kansas ET-BASED IRRIGATION SCHEDULING Allan A. Andales
More informationPredicting the Last Irrigation of the Season using Watermark Soil Moisture Sensors
Predicting the Last Irrigation of the Season using Watermark Soil Moisture Sensors This is the last of a series of three factsheets on Watermark Soil Moisture Sensors. The first factsheets details How
More informationMichael Cahn, Barry Farrara, Tim Hartz, Tom Bottoms, and Mark Bolda
Strawberry water use on the Central Coast Michael Cahn, Barry Farrara, Tim Hartz, Tom Bottoms, and Mark Bolda With few options for importing water from other areas of the state, water supplies on the Central
More informationVALUE OF CROP RESIDUE FOR WATER CONSERVATION
Proceedings of the 22 nd Annual Central Plains Irrigation Conference, Kearney, NE., February 24-, 10 Available from CPIA, 760 N.Thompson, Colby, Kansas VALUE OF CROP RESIDUE FOR WATER CONSERVATION Simon
More informationEC Irrigation Scheduling Using Tensiometers in Sandy Soils
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Historical Materials from University of Nebraska- Lincoln Extension Extension 1984 EC84-724 Irrigation Scheduling Using
More informationIrrigation Workshop. Brad Rathje, AquaSpy Inc
Irrigation Workshop Brad Rathje, AquaSpy Inc. brathje@aquaspy.com, 402-740-3687 Capacitance Probes Capacitance Sensor measures the surrounding soil as a capacitor. The sfu ( scaled frequency unit) changes
More informationThe Delaware Irrigation Management System (DIMS) User s Guide A Web-based Irrigation Scheduling Tool for Delaware
The Delaware Irrigation Management System (DIMS) User s Guide A Web-based Irrigation Scheduling Tool for Delaware Version 1.1 May 2, 2012 DIMS is an online system designed to provide members of the Delaware
More informationSprinkler System Capacity. AE-91 (Revised), August 2005 Tom Scherer, Extension Agricultural Engineer
AE-91 (Revised), August 2005 Tom Scherer, Extension Agricultural Engineer Click here for an Adobe Acrobat PDF file suitable for printing. (220KB) The four basic methods of irrigation are: subsurface irrigation
More informationFinal Report to Delaware Soybean Board
Final Report to Delaware Soybean Board Submitted January 14, 2015 (e-mail) Received January 14, 2015 Delaware Soybean Board (susanne@hammondmedia.com) Evaluating the Response of Full Season and Double
More informationIrrigation Scheduling in Orchards. Terry Prichard CE Water Management Specialist UC Davis Dept LAWR
Irrigation Scheduling in Orchards Terry Prichard CE Water Management Specialist UC Davis Dept LAWR Irrigation Scheduling When to apply irrigation water How Much to apply When and How Much? Different crops
More informationMethods of Irrigation Scheduling and Determination of Irrigation threshold triggers
Methods of Irrigation Scheduling and Determination of Irrigation threshold triggers Introduction Principle of irrigation Scheduling Methods of irrigation scheduling Determination of Irrigation Triggers
More informationStrategies to Maximize Income with Limited Water
Strategies to Maximize Income with Limited Water Tom Trout Research Leader, Agricultural Engineer USDA-ARS Water Management Research Unit Ft. Collins, CO 970-492-7419 Thomas.Trout@ars.usda.gov The best
More information2009 Crop Management Diagnostic Clinics Response of Corn Water Use to Limited Water Bill Kranz, UNL Extension Irrigation Specialist
2009 Crop Management Diagnostic Clinics Response of Corn Water Use to Limited Water Bill Kranz, UNL Extension Irrigation Specialist Use & Copyright The materials in this document were developed by and
More informationTillage and Crop Residue Removal Effects on Evaporation, Irrigation Requirements, and Yield
Proceedings of the 24 st Annual Central Plains Irrigation Conference, Colby, Kansas, February 21-22, 2012 Available from CPIA, 760 N.Thompson, Colby, Kansas Tillage and Crop Residue Removal Effects on
More informationPractical Irrigation Scheduling, Technology & Deficit Irrigation. Katherine Pope, Farm Advisor Sac, Solano & Yolo Counties
Practical Irrigation Scheduling, Technology & Deficit Irrigation Katherine Pope, Farm Advisor Sac, Solano & Yolo Counties Irrigation Scheduling: Demand and Supply Demand = Evapotranspiration Supply = Storage,
More informationTexture Definition: relative proportions of various sizes of individual soil particles USDA classifications Sand: mm Silt:
Texture Definition: relative proportions of various sizes of individual soil particles USDA classifications Sand: 0.05 2.0 mm Silt: 0.002-0.05 mm Clay:
More informationIrrigation Scheduling: Sensors, Technical Tools, and Apps
Irrigation Scheduling: Sensors, Technical Tools, and Apps Wesley M. Porter Ext. Precision Ag and Irrigation Specialist University of Georgia All About Irrigation Workshop VA Tech Tidewater AREC March 6,
More informationJim Schepers (retired)
Jim Schepers (retired) Center-Pivot Fertigation Self-Contained Fertigation Unit Fertigation Components Anti-Siphon Devices FLOW UAN Chemical Safeguards Essential components back-flow restriction electric
More informationOverview. Regional District of Nanaimo Team WaterSmart Drip / Micro Workshop. Water Source WATER METER. Backflow Prevention Devices
Regional District of Nanaimo Team WaterSmart Drip / Micro Workshop June 2009 Overview Irrigation System Anatomy (controllers, backflow, valves, sprinklers) Items Required (pipe & fittings) Pressure and
More informationCENTRAL PLATTE NATURAL RESOURCES DISTRICT NITROGEN MANAGEMENT CERTIFICATION TEST
CENTRAL PLATTE NATURAL RESOURCES DISTRICT NITROGEN MANAGEMENT CERTIFICATION TEST NAME: CERT #: ADDRESS: CITY: Section A: The Nitrate Contamination Concern 1) The U.S. Environmental Protection Agency s
More informationIrrigation Management Technologies
Irrigation Management Technologies Nicholas Kenny, P.E. Texas AgriLife Extension Service Amarillo Crop Production Clinic Goodwell, Oklahoma; 8 March 2012 Improving Lives. Improving Texas. Programs Supported
More informationSmall Acreage Irrigation Management
September 2008 AG/Small Acreage/ 2008-02pr Small Acreage Irrigation Management Kevin M. Heaton, Agricultural Agent Garfield County Robert W. Hill, Extension Specialist Irrigation James V. Barnhill, Agricultural
More informationIrrigation Water Management and Scheduling
Irrigation Water Management and Scheduling John Panuska & Scott Sanford UW Extension Biological Systems Engineering Dept. BSE Boot Camp Training November 3 rd, 2017 Irrigation Water Management So you want
More informationPrepared and Published by Irrigation Industry Association of British Columbia (IIABC) Editors
Agriculture Pivot Irrigation Scheduling Calculator Users Guide Prepared and Published by (IIABC) Editors Andrew Petersen, P.Ag. CID Ted W. van der Gulik, P.Eng. April 2009 www.irrigationbc.com TABLE OF
More informationWHO WANTS TO BE AN IN-CANOPY IRRIGATOR? INTRODUCTION AND GUIDELINES
WHO WANTS TO BE AN IN-CANOPY IRRIGATOR? Freddie R. Lamm, Research Irrigation Engineer 1 flamm@ksu.edu Northwest Research Extension Center, Colby, Kansas K-State Research and Extension Phone 785-462-6281
More informationIrrigation Technology and Design. 1. Why do we Irrigate? How do we apply irrigation water? KPU Small Farm Sessions 2/13/2016
Irrigation Technology and Design Stephanie Tam, P.Eng. Water Management Engineer Andrew Petersen, P. Ag Regional Resource Specialist B.C. Ministry of Agriculture 1. Why do we irrigate? 2. How much water
More informationDrip Irrigation Efficiency. Fact or Fiction?
Drip Irrigation Efficiency Fact or Fiction? Why do We use Drip? It saves water! How does it save water? Because it s very efficient Is it? Sadly in the real world it often has very poor efficiency What
More informationHow to Create an Irrigation Schedule. Bernd Leinauer Professor & Extension Turfgrass Specialist New Mexico State University
How to Create an Irrigation Schedule Bernd Leinauer Professor & Extension Turfgrass Specialist New Mexico State University leinauer@nmsu.edu Water use defined Transpiration Evaporation Water use + Metabolism
More informationDrip irrigation scheduling
Drip irrigation scheduling Drip irrigation scheduling : Water budget system replace estimated water loss from crop and soil Soil moisture measurement irrigate at a set level of soil moisture depletion
More informationWater Savings from Crop Residue in Irrigated Corn
Water Savings from Crop Residue in Irrigated Corn Norman L. Klocke Professor, Water Resources Engineer Kansas State University Garden City, Kansas Voice: 620-276-8286 Fax: 620-276-6028 Email: nklocke@ksu.edu
More informationSPRINKLERS, CROP WATER USE, AND IRRIGATION TIME BEAVER COUNTY
SPRINKLERS, CROP WATER USE, AND IRRIGATION TIME BEAVER COUNTY Robert W. Hill, Extension Specialist - Irrigation Mark Nelson, Extension Agent - Beaver County August 2001 ENGR/BIE/WM/24 Sprinkler irrigation
More informationUsing Dairy Manure as a Fertilizer Source for Forage Crops. Workgroup. Marsha Campbell Mathews University of California Farm Advisor Stanislaus County
Using Dairy Manure as a Fertilizer Source for Forage Crops Marsha Campbell Mathews University of California Farm Advisor Stanislaus County David Crohn University of California Waste Management Specialist,
More informationEstimating Irrigation Water Requirements
Estimating Irrigation Water Requirements Fact Sheet 447 Why Estimate Water Needs? Predicting water needs for irrigation is necessary for the development of an adequate water supply and the proper size
More informationEVALUATING CENTER PIVOT, NOZZLE-PACKAGE PERFORMANCE
Proceedings of the 23rd Annual Central Plains Irrigation Conference, Burlington, CO., February 22-23, 2011 Available from CPIA, 760 N. Thompson, Colby, Kansas EVALUATING CENTER PIVOT, NOZZLE-PACKAGE PERFORMANCE
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 informationIRRIGATION SCHEDULING: KNOWING YOUR FIELD
INSIGHT SERIES INSIGHTS ON IRRIGATION SCHEDULING: KNOWING YOUR FIELD A critical aspect of farm management is the ability to identify the appropriate timing of irrigation applications to a field and to
More informationOperating, Calibrating, and Maintaining Irrigation Systems
Lesson A7 4 Operating, Calibrating, and Maintaining Irrigation Systems Unit A. Mechanical Systems and Technology Problem Area 7. Agricultural Equipment Systems Lesson 4. Operating, Calibrating, and Maintaining
More informationIrrigation Management Practices Cropping A*Syst Katie L. Droscha 01/14/ /15/2013 minor edits by Linda Zabik
Irrigation Management Practices Cropping A*Syst Katie L. Droscha 01/14/2013-01/15/2013 minor edits by Linda Zabik 7.01) Have all irrigation systems been evaluated for application of uniformity? Low Risk
More informationIrrigation Management of Perennial Forages
Irrigation Management of Perennial Forages Alfalfa and Timothy Hay Shelley Woods Soil and Research Scientist Irrigation Management Branch Irrigation & Farm Division Alberta Agriculture and Forestry Irrigated
More informationSPRINKLERS, CROP WATER USE, AND IRRIGATION TIME KANE COUNTY
SPRINKLERS, CROP WATER USE, AND IRRIGATION TIME KANE COUNTY Robert W. Hill, Extension Specialist - Irrigation Kevin Heaton, Extension Agent - Kane County May 2001 ENGR/BIE/WM/11 Sprinkler irrigation has
More informationPlacement and Interpretation of Soil Moisture Sensors for Irrigated Cotton Production in Humid Regions SITE SELECTION IN A FIELD OBJECTIVE
Brian Leib, University of Tennessee Jose Payero, Clemson University Lyle Pringle, Mississippi State University James Bordovsky, Texas A&M University Wesley Porter, University of Georgia Ed Barnes, Cotton
More informationIrrigation Management for Cotton. Guy D. Collins, Ph.D. Cotton Extension Associate Professor
Irrigation Management for Cotton Guy D. Collins, Ph.D. Cotton Extension Associate Professor March 6-7 th, 2018 Irrigation Basics General Rule of Thumb = 18 inches of water required to produce a cotton
More informationProcedure to easily Fine-Tune Crop Coefficients for Irrigation Scheduling
Procedure to easily Fine-Tune Crop Coefficients for Irrigation Scheduling Joseph C. Henggeler, State Extension Irrigation Specialist University of Missouri, PO Box 160, Portageville, MO 63873 (henggelerj@missouri.edu)
More informationRESPONSE OF CORN TO DEFICIT IRRIGATION
RESPONSE OF CORN TO DEFICIT IRRIGATION AND CROP ROTATIONS N. L. Klocke, J. O. Payero, J. P. Schneekloth The authors are Norman L. Klocke, Professor, Kansas State University, Southwest Research Extension
More informationRun-off & Soil Sealing
Prevent Run-off & Soil Sealing Matching soil infiltration rates by spreading out your sprinkler pattern over a larger surface. made in usa Tight Soils Tight soils are a challenge for growers who depend
More informationSMART Irrigation Controllers How smart are they?
SMART Irrigation Controllers How smart are they? Loren Oki Dept. of Plant Sciences and Dept. Human Ecology UC Davis Get A Grip On Drip Concord, CA October 12, 2017 Topics Irrigation objectives What are
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 informationScheduling Irrigation for Horticultural Crops
for Horticultural Crops Patrick Byers Regional Horticulture Specialist Greene County Water and Vegetables Yield water shortages can lead to: Poor seed germination Delayed maturity Death of plants Quality
More informationCotton Irrigation in Kansas
Cotton Irrigation in Kansas Mahbub Alam, Troy Dumler, Danny H. Rogers, Tom Roberts, Kent Shaw Professor and Extension Specialist Irrigation; Extension Agricultural Economist; Kansas State University Research
More informationCrop Water Use Program for Irrigation
Crop Water Use Program for Irrigation Divisions of Plant Sciences, Applied Social Sciences, Food Sciences and Bioengineering, and Soil, Environmental, and Atmospheric Sciences Water is an important factor
More informationIrrigation Scheduling for Tropical Fruit Groves in South Florida 1
TR001 Irrigation Scheduling for Tropical Fruit Groves in South Florida 1 K. W. Migliaccio and Y. C. Li 2 Introduction Irrigation is used primarily to satisfy plant water needs that are not met by rainfall.
More informationIRRIGATION SCHEDULING OF ALFALFA USING EVAPOTRANSPIRATION. Richard L. Snyder and Khaled M. Bali 1 ABSTRACT
IRRIGATION SCHEDULING OF ALFALFA USING EVAPOTRANSPIRATION Richard L. Snyder and Khaled M. Bali 1 ABSTRACT This paper describes the Irrigation Scheduling Alfalfa (ISA) model, which is used to determine
More informationKanSched2. An ET-Based Irrigation Scheduling Tool. October 2006
KanSched2 An ET-Based Irrigation Scheduling Tool October 2006 Danny H. Rogers and Mahbub Alam Biological and Agricultural Engineering K-State Research and Extension KanSched 2.0 is a program that is designed
More informationValley. Water Application RELIABLE DURABLE PRECISE ADVANCED RESPONSIVE
Valley Water Application RELIABLE DURABLE PRECISE ADVANCED RESPONSIVE Choosing the Rig ht Sprinkler Package Deciding on the correct water application solution is vital to your pivot s performance. The
More information12/12/ General. Crop period and base period Duty and delta of a crop Duty and delta of a crop
2. 1. General The quantity of water, regardless of its source, required by crop in a given period of time for its normal growth under field conditions. Crop period and base period CWR = ET or CU + application
More informationSMART Irrigation Controllers How smart are they?
SMART Irrigation Controllers How smart are they? Loren Oki Dept. of Plant Sciences and Dept. Human Ecology UC Davis Get A Grip On Drip Sacramento, CA October 10, 2017 Topics Irrigation objectives What
More informationEstimating water needs of alfalfa and using ET to schedule Irrigation
Estimating water needs of alfalfa and using ET to schedule Irrigation D. Zaccaria, R. Snyder, D. Putnam, A. Montazar, C. Little DWR-Funded Project (2014-2017) aiming at Developing updated information on
More informationAbstract: Technical advancements have eliminated the single greatest limitation of Center Pivots.
Lowering Average Application Rate (AAR) Expands Potential of Center Pivots Jon R. Johnston President, Irrigation Accessories Co. IACO PO Box 820118, Vancouver WA 98662 jon@boombacks.com Abstract: Technical
More informationNITROGEN FERTILIZATION FOR CORN PRODUCTION WHEN USING LEPA CENTER PIVOT SPRINKLERS. F.R. Lamm and A. J. Schlegel 1
NITROGEN FERTILIZATION FOR CORN PRODUCTION WHEN USING LEPA CENTER PIVOT SPRINKLERS F.R. Lamm and A. J. Schlegel ABSTRACT A four year study was conducted with LEPA (Low Energy Precision Application) sprinklerirrigated
More informationUnder drought conditions when water may be in short supply, growers often need to
1 Drought Planning for Vegetable Production 2 Introduction 3 4 5 6 7 8 9 10 Under drought conditions when water may be in short supply, growers often need to estimate the potential water use of their crops
More informationIn-Canopy Water Distribution Patterns Where the water goes, the chemical goes
In-Canopy Water Distribution Patterns Where the water goes, the chemical goes Corn Height 8-10 ft. Nozzle Spacing 12.5 ft Nozzle Height 42 in. 12 Change in Soil Water 8 Content, % 4 0 2 4 6 8 10 12 14
More information