Quest for 300 Bushel Corn

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2 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

3 Quest for 300 Bushel Corn Intelligent Intensification with the Seven Wonders of the Corn Yield World What are the factors that have the biggest impact on corn yield each year?

4 Seven Wonders of the Corn Yield World Ranks those factors that each year can have a positive (and sometimes negative) impact on corn yield Gives each factor an average bushel per acre value

5 Crucial Prerequisites, but not Yield Wonders Drainage Pest/Weed Control Proper soil ph & adequate levels of P and K based on soil tests

6 Seven Wonders of the Corn Yield World Rank Factor Value bu/acre Weather 70+ Nitrogen 70 Hybrid 50 Previous Crop 25 Plant Population 20 Tillage 15 Growth Regulators 10 Given key prerequisites

7 220 Weather and Nitrogen Grain yield (bu acre -1 ) Same site DeKalb, IL Fertilizer N rate (lb acre -1 )

8 Seven Wonders of the Corn Yield World Rank Factor Value bu/acre Weather 70+ Nitrogen 70 Hybrid 50 Previous Crop 25 Plant Population 20 Tillage 15 Growth Regulators 10 Given key prerequisites

9 Grain Yield is a Product Function of Yield Components Yield = (plants/acre) x (kernels/plant) x (weight/kernel)

10 Some Examples of Yield Component Combinations for Different Yields 200 bushels = 32,000 plants/ac x 550 kernels/plant x 250 mg/kernel 250 bushels = 36,000 plants/ac x 600 kernels/plant x 255 mg/kernel 300 bushels? = 45,000 plants/ac x 565 kernels/plant x 260 mg/kernel

11 Plant Competition Can Decrease Yield Grain yield (bu acre -1 ) Champaign, IL 2009 Plant population (x10 3 acre -1 )

12 Are Twin Rows a way to increase Plant Population? Champaign, 2009

13 Seven Wonders of the Corn Yield World Rank Factor Value bu/acre Weather 70+ Nitrogen 70 Hybrid 50 Previous Crop 25 Plant Population 20 Tillage 15 Growth Regulators 10 Given key prerequisites

14 Leaf Greening from Strobliurin Fungicides Leaves greener 50 days after VT application

15 Seven Wonders of the Corn Yield World Rank Factor Given key prerequisites Weather Nitrogen Hybrid Previous Crop Plant Population Tillage Growth Regulators TOTAL Value bu/acre bu

16 Seven Wonders of the Corn Yield World Rank Factor Weather Nitrogen Hybrid Given key prerequisites Previous Crop Plant Population Tillage Growth Regulators TOTAL = Value bu/acre % bu 100%

17 How to Get 300 Bushels? Better prerequisites, season long weed/pest control & balanced fertility/nutrition Optimize each of the seven wonders and their positive interactions

18 Prerequisites for 300 Bushels? Proper soil ph & adequate levels of P and K based on soil tests Fertility- Use application and fertilizer technologies to supply required crop nutrition (Sulfur & Zn?)

19 Nutrition Needed for 230 Bushel Corn Nutrient Required to Produce Removed with Grain Harvest Index lbs/acre % N P 2 O K 2 O S Zn (oz) B (oz) Average of 6 hybrids in Champaign and DeKalb IL in 2010.

20 Seasonal Uptake & Partitioning of Nitrogen Nitrogen Uptake (lb N ac -1 ) Grain Tassel, Cob, Husk Leaves Stalk and Leaf Sheaths Leaf Blades GDD F Percent (%) of Total Nitrogen E V3 V6 V9 V14 V18 R1 R3 R5 R6 Growth Stage 6 hybrids representing all commercial bt rootworm traits grown in Champaign and DeKalb, IL in 2010 with yields of bu/acre

21 Seasonal Uptake & Partitioning Phosphorus 6 hybrids representing all commercial bt rootworm traits grown in Champaign and DeKalb, IL in 2010 with yields of bu/acre Phosphorus Uptake (lb P ac -1 ) Grain Tassel, Cob, Husk Leaves Stalk and Leaf Sheaths Leaf Blades GDD F Percent (%) of Total Phosphorus E V3 V6 V9 V14 V18 R1 R3 R5 R6 Growth Stage

22 Seasonal Uptake & Partitioning of Zinc Zinc Uptake (oz Zn ac -1 ) Grain Tassel, Cob, Husk Leaves Stalk and Leaf Sheaths Leaf Blades Percent (%) of Total Zinc GDD F 0 E V3 V6 V9 V14 V18 R1 R3 R5 R6 Growth Stage 6 hybrids representing all commercial bt rootworm traits grown in Champaign and DeKalb, IL in 2010 with yields of bu/acre

23 How to Get 300 Bushels? Better prerequisites along with packages of optimized yield wonders Is the value of combined factors greater than their individual impact?

24 Seven Wonders of the Corn Yield World Rank Factor Weather Nitrogen Hybrid Previous Crop Plant Population Tillage Growth Regulators Total Improved Fertility Prerequisites Value bu/acre bu

25 Standard vs. High Tech Package Fertility Nitrogen No P or K based on soil test 100 lbs P 2 O 5 as MESZ (N, P, S, & Zn) 180 lbs pre-plant as UAN 100 lbs extra N sidedress as Super-U Genetics RR Refuge Hybrid (DKC 61-22) Triple stack Hybrid (DKC 61-19) Both with soil insecticide at planting Population 32,000 plants/ac vs 45,000 plants/ac Fungicide No Fungicide Both in 30 inch rows and twin rows in 2010 Headline or Quilt-Xcel (@ R1)

26 High-Yield Omissions Study, Ears from 1/1000 of an acre High Technology Package Standard Practice

27 Add Technology Remove Technology Omission Plot Experimental Design FACTORS TREATMENT Fertility Nitrogen Genetics Population Fungicide HIGH TECH MESZ Base + Slow release Triple stack 45,000 Strobilurin Fertility No P & K Base + Slow release Triple stack 45,000 Strobilurin Nitrogen MESZ Base Triple stack 45,000 Strobilurin Genetics MESZ Base + Slow release Refuge 45,000 Strobilurin Population MESZ Base + Slow release Triple stack 32,000 Strobilurin Fungicide MESZ Base + Slow release Triple stack 45,000 none STANDARD No P & K Base Refuge 32,000 none Fertility MESZ Base Refuge 32,000 none Nitrogen No P & K Base + Slow release Refuge 32,000 none Genetics No P & K Base Triple stack 32,000 none Population No P & K Base Refuge 45,000 none Fungicide No P & K Base Refuge 32,000 Strobilurin

28 Summary of Standard vs High-Tech Standard High Tech Factor Yield D Yield D bu acre -1 None or All Fertility Nitrogen Genetics Population Fungicide LSD (p<0.10) = 6 Data from Champaign and Dixon Springs in 2009 & 2010

29 Standard vs High Tech Package Fertility Nitrogen Genetics No or fall P or K based on soil test 100 lbs P 2 O 5 as MESZ (N, P, S, & Zn) Banded 4-6 directly under row at planting 180 lbs pre-plant as urea 180 lbs pre-plant SuperU + 60 lbs sidedress urea with Agrotain Low Management Yield Potential High Management Yield Potential Both triple-stack with soil insecticide at planting Population 32,000 plants/ac vs 45,000 plants/ac Both final stand in 30 inch and twin rows Fungicide No Fungicide Headline-Amp or R1

30 Omission Plots plots at 4 sites with Banded fertility at planting Different MYP hybrids Twin rows vs 30 inch Different fungicides Weather Different planting dates Different growing conditions Heat, Drought, Wind Rushville Springfield Champaign Harrisburg

31 Improved Growth with Spring-Banded MESZ Champaign, IL 2011

32 No Corn Plant Left Behind Standard Technology High Technology Champaign, IL 2011

33 Challenging weather at locations Daily temperature ( o F) Champaign, IL Planting V6 VT/R1 R Julian day Harrisburg, IL Planting V6 VT/R1 R Daily precipitation (inches)

34 Omission Plot Experiments in Illinois is 2011 Number Location Omission plot name 1 Rushville DeKalb hybrid comparison 2 Champaign DeKalb hybrid comparison 3 Champaign Pioneer omission plot 4 Champaign Twin row omission plot 5 Springfield DeKalb hybrid comparison 6 Champaign Non-irrigated omission plot 7 Champaign 30-inch omission plot 8 Harrisburg 30-inch omission plot 9 Champaign Syngenta omission plot 10 Champaign Irrigated omission plot 11 Champaign DeKalb hybrid comparison 12 Harrisburg Twin row omission plot

35 Yield Response from High-Tech Management in 2011 Management response (bu acre -1 ) Avg. = 26 bu acre Omission Plot Experiment (sorted)

36 Standard vs High-Tech 2011 Average of all 12 Trials Standard High Tech Factor Yield Δ Yield Δ bushels acre None or all Fertility Nitrogen Genetics Population Fungicide LSD (p<0.10) = 6 Average of 12 trials in Illinois In 2011

37 No Corn Plant Left Behind Standard Technology High Technology Champaign, IL 2011

38 Standard vs High-Tech 2011 Average of all 12 Trials Standard High Tech Factor Yield Δ Yield Δ bushels acre None or all Fertility Nitrogen Genetics Population Fungicide LSD (p<0.10) = 6 Average of 12 trials in Illinois In 2011

39 How do You Select the Right Hybrid? Hybrid RM Hybrid RM Garst 85V GT 107 N72A Garst 84S DKC VT3 113 DKC SSTX 111 FS 63MV4 113 FS 61BV3 111 P1395XR 113 P1184XR 111 P33Z N68A-3000GT 111 H GT 113 N68B Croplan 6914AS3000/GT 114 N68B-3000GT 111 Croplan 6960VT3/P 114 Croplan 6160VT3/P 112 DKC VT3P 114 DKC VT3P 112 N74R-3000GT 114 DKC VT3P 112 Croplan 7505VT3 115 P1236XR 112 DKC VT3 115

40 2011 Management Yield Potential Trials Twenty-four hybrids from five major seed sources: SmartStax, Herculex XTRA, YieldGard VT3, or Agrisure trait packages. Two locations: Champaign and Harrisburg relative maturity hybrids Two plant densities: 32,000 acre -1 & 45,000 acre -1 Three N rates: 0 lb N: Check plot yield (low N tolerance) 60 lb N: Initial fertilizer N response 240 lb N: Maximum yield Champaign Harrisburg

41 How do You Select the Right Hybrid? Rank Grain Yield Rank Grain Yield bu acre -1 bu acre LSD (0.10) = ,000 plants/acre with 240 lbs N, average of two sites in Illinois in 2011

42 Hybrid Tolerance to High Plant Population Plant density response (bu acre -1 ) Trial avg. = bu acre lbs N/acre, average of two sites in Illinois in 2011

43 Hybrid Tolerance to High Plant Population Plant density response (bu acre -1 ) Syngenta hybrids Trial avg. = bu acre lbs N/acre, average of two sites in Illinois in 2011

44 Hybrid Tolerance to High Plant Population Plant density response (bu acre -1 ) Pioneer hybrids Trial avg. = bu acre lbs N/acre, average of two sites in Illinois in 2011

45 Hybrid Tolerance to High Plant Population Plant density response (bu acre -1 ) DEKALB hybrids Trial avg. = bu acre lbs N/acre, average of two sites in Illinois in 2011

46 Hybrid Tolerance to High Plant Population Plant density response (bu acre -1 ) Croplan Genetics and FS hybrids Trial avg. = bu acre lbs N/acre, average of two sites in Illinois in 2011

47 How do You Select the Right Hybrid? Rank Grain Yield Rank Grain Yield bu acre -1 bu acre LSD (0.10) = ,000 plants/acre with 240 lbs N, average of two sites in Illinois in 2011

48 Identifying Hybrids Tolerant of Lower N Levels Initial N response (bu acre -1 ) Check plot yield (bu acre -1 ) Average of two sites in Illinois in 2011

49 Hybrids that can Tolerate N loss (ie Workhorse) Hybrid RM Hybrid RM Garst 85V GT 107 N72A Garst 84S DKC VT3 113 DKC SSTX 111 FS 63MV4 113 FS 61BV3 111 P1395XR 113 P1184XR 111 P33Z N68A-3000GT 111 H GT 113 N68B Croplan 6914AS3000/GT 114 N68B-3000GT 111 Croplan 6960VT3/P 114 Croplan 6160VT3/P 112 DKC VT3P 114 DKC VT3P 112 N74R-3000GT 114 DKC VT3P 112 Croplan 7505VT3 115 P1236XR 112 DKC VT3 115

50 Identifying Hybrids Suitable for High Management Response to density (bu acre -1 ) bu acre bu acre bu acre bu acre Average of two sites in Illinois in 2011 Maximum response to N (bu acre -1 )

51 Hybrids Suitable for High-Tech Management Hybrid RM Hybrid RM Garst 85V GT 107 N72A Garst 84S DKC VT3 113 DKC SSTX 111 FS 63MV4 113 FS 61BV3 111 P1395XR 113 P1184XR 111 P33Z N68A-3000GT 111 H GT 113 N68B Croplan 6914AS3000/GT 114 N68B-3000GT 111 Croplan 6960VT3/P 114 Croplan 6160VT3/P 112 DKC VT3P 114 DKC VT3P 112 N74R-3000GT 114 DKC VT3P 112 Croplan 7505VT3 115 P1236XR 112 DKC VT3 115

52 Conclusions Yield gains are possible from a systems approach to crop management that combines individual practices known to impact yield The factor or factors which drive increased yield in the high-tech package depend on the weather

53 Conclusions Increasing plant population may be the foundation for pushing higher yields, but it must be managed and protected Selecting the right hybrid for the standard or the high-tech package is crucial, especially in a stressful environment

54 Personnel Brad Bandy Tom Boas Ryan Becker Ross Bender Fernando Cantao Paulo Galvao Laura Gentry Jason Haegele Mark Harrison Cole Hendrix Jim Kleiss Bianca Moura Matías Ruffo Juliann Seebauer Martín Uribelarrea Mike Vincent Kyle Vogelzang Wendy White Acknowledgements Financial Support AGCO Agrium AgroFresh AgroTain BASF Dawn Equipment Dow AgroSciences DuPont GrowMark Honeywell Illinois Corn Marketing Board Illinois Fertilizer Research Council Monsanto Mosaic Orthman Pioneer Rosen s Inc. Syngenta Valent BioSciences WinField Solutions

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