Fred Below Crop Physiology Laboratory Department of Crop Sciences University of Illinois at Urbana-Champaign
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1 Fred Below Crop Physiology Laboratory Department of Crop Sciences University of Illinois at Urbana-Champaign Le Rendez-vous Vegetal Brossard, Quebec February 10, 2016
2 Do Growers Adequately Manage Soybean?
3 The Soybean Yield Gap US average soybean yield of about 3.1 tons per hectare (46 bushels per acre) World record yield 10.8 tons per hectare (161 bushels ) Illinois record 7.24 tons per hectare (108 bushels)
4 The Six Secrets of Soybean Success What Factors Have the Biggest Impact on Soybean Yield?
5 Not Secrets of Soybean Success, but Important to Overall Crop Productivity Corn yields 1.6 tons better when it follows soybean and needs kg less nitrogen fertilizer
6 Not Secrets of Soybean Success, but Important to Overall Crop Productivity Soybean improves soil tilth compared to corn Soybean root system is a taproot while corn roots are fibrous
7 Soybean Improves Soil Tilth
8 Crucial Prerequisites, but not Secrets of Success Drainage Weed Control Proper Soil ph
9 The Six Secrets of Soybean Success Rank 1 Factor Weather Given key prerequisites
10 Above Average Precipitation during June, 2015 Source: NOAA Midwestern Regional Climate Center
11 2015 Weather Challenges
12 The Six Secrets of Soybean Success Rank Factor Weather Fertility Given key prerequisites
13 Soybean Gets Some N from Fixation by Nodules
14 N Uptake (kg N ha -1 ) N Uptake & Partitioning for 4 Ton Soybean Grain Flowers, Pods Stem, Petioles Leaves Soybean needs to accumulate 70 kg of N per ton of grain, half of which comes from the nodules Percent of Total (%) Days After Planting 0 Planting V2 V4 V7 R2 R4 R5 R6 R8 Growth Stage Agron. J. 107: (2015)
15 Nitrogen Needs and Removal by 4 Ton Soybean Crop Amount Required *Amount from Nodules Removed with Grain Net Removal from Soil kg hectare * Assuming 50% of total N accumulation supplied by N fixation from nodules Data averaged across two varieties, two fertility regimes, and three site-years during 2012 and 2013
16 Soybean Needs More N than it Can Fix N uptake (kg ha -1 ) Total N uptake Biological N fixation Yield (Mg ha -1 ) Adapted from Salvagiotti et al Field Crops Res. 108:1-13.
17 The Six Secrets of Soybean Success Rank Factor Weather Fertility Given key prerequisites
18 Typical Fertilization for Corn and Soybean in the US 200 kg N, 100 kg P 2 O 5 and 112 kg K 2 O per hectare applied to corn. No S or micronutrients No fertilizer applied to soybean
19 Nutrient Uptake and Removal by Nutrient 4 Ton Soybean Required to Produce Removed with Grain Harvest Index kg hectare -1 % N P 2 O K 2 O S Zn (g) B (g) Data averaged across two varieties, two fertility regimes, and three site-years during 2012 and Agron. J. 107: (2015)
20 Nutrient Uptake and Removal by Nutrient 4 Ton Soybean Required to Produce Removed with Grain Harvest Index kg hectare -1 % N P 2 O K 2 O S Zn (g) B (g) Data averaged across two varieties, two fertility regimes, and three site-years during 2012 and Agron. J. 107: (2015)
21 Typical Fertilization for Corn and Soybean in the US 200 kg N, 100 kg P 2 O 5 and 112 kg K 2 O per hectare applied to corn. No S or micronutrients No fertilizer applied to soybean
22 P and K Uptake and Removal by 4 Ton Soybean vs 14.4 Ton Maize Nutrient Required to Produce Removed with Grain Remain in Stover Corn Soy Corn Soy Corn Soy kg hectare -1 P 2 O K 2 O Corn data from Agron J. 105: (2013); Soybean data from Agron. J. 107: (2015)
23 K Uptake & Partitioning for 4 Ton Soybean K Uptake (kg K 2 O ha -1 ) Grain Flowers, Pods Stem, Petioles Leaves Most (50%) K accumulation is in the stem and leaf petioles Percent of Total (%) Days After Planting 0 Planting V2 V4 V7 R2 R4 R5 R6 R8 Growth Stage Agron. J. 107: (2015)
24 P Uptake & Partitioning for 4 Ton Soybean P Uptake (kg P 2 O 5 ha -1 ) Grain Flowers, Pods Stem, Petioles Leaves Season long uptake and no reservoir of P in the stem and leaf petioles Percent of Total (%) Days After Planting Planting V2 V4 V7 R2 R4 R5 R6 R8 Growth Stage Agron. J. 107: (2015) 0
25 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Given key prerequisites
26 All Soybean Varieties are Not Created Equal Variety Yield Variety Yield Variety Yield ton ha -1 ton ha -1 ton ha varieties with high-input management at Champaign, IL 2015
27 All Soybean Varieties are Not Created Equal MG Yield MG Yield MG Yield ton ha -1 ton ha -1 ton ha varieties with high-input management at Champaign, IL 2015
28 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Given key prerequisites
29 Soybean is Indeterminate Flower and leaf development at the same time Closest leaf provides most of the energy for pods at that node Typical plant has 20 nodes Source: Fig. 14 from Pedersen, 2009, Soybean Growth and Development.
30 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Foliar Protection Given key prerequisites
31 Soybean Yield Components Yield = Pod number/ha x Seeds per pod x Weight per seed
32 The Legendary 5 Bean Pod Champaign, 2013
33 Soybean Yield Components Yield = Pod number/ha x Seeds per pod x Weight per seed
34 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Foliar Protection Given key prerequisites
35 Soybean Yield Components Yield = Pod number/ha x Seeds per pod x Weight per seed
36 How Does Pod Number Effect Soybean Yield 3.0 Pod Number (per node) tons Node Number
37 How Does Pod Number Effect Soybean Yield 3.0 Pod Number (per node) tons 4.2 tons Node Number
38 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Foliar Protection Seed Treatment Given key prerequisites
39 Impact of Seed Treatment on Emergence Untreated Fungicide, Insecticide, Nematicide Photos courtesy of AJ Woodyard, BASF
40 Impact of Seed Treatment on Soybean Growth Fungicide only R2 growth stage, Champaign, IL 2012 Fungicide, Insecticide, Nematicide
41 Impact of Seed Treatment on Soybean Growth Plants at growth stage R2 at Champaign, IL 2012
42 The Six Secrets of Soybean Success Rank Factor Weather Fertility Genetics/Variety Foliar Protection Seed Treatment Row Arrangement Given key prerequisites
43 Row Spacing Affects Light Interception And Canopy Air Movement 76 cm Rows 51 cm Rows Champaign, IL 2012
44 Standard vs High Tech System Phosphorus Potassium P and K Foliar Protection Seed Treatment Row Arrangement P applied year before to corn 84 kg P 2 O 5 as MESZ (N, P, S, & Zn) Banded cm under row at planting K applied year before to corn 84 kg K 2 O as Aspire (K & B) Broadcast and incorporated at planting P & K applied year before to corn MESZ and Aspire applied as above No foliar protection Fungicide and Insecticide at R3 Untreated or Fungicide only Fungicide, Insecticide, Nematicide 76 cm row spacing 51 cm row spacing
45 Banding Fertilizer cm Deep Directly Under the Future Crop Row
46 Seeding Soybean Crop 4 cm Deep Directly Over the Fertilizer Band
47 Without banded fertility but with adequate soil test values With banded fertility to provide 28 kg N, 84 kg P 2 O 5, 20 kg S, 2 kg Zn per acre
48 Standard vs High Tech System Phosphorus Potassium P and K Foliar Protection Seed Treatment Row Arrangement P applied year before to corn 84 kg P 2 O 5 as MESZ (N, P, S, & Zn) Banded cm under row at planting K applied year before to corn 84 kg K 2 O as Aspire (K & B) Broadcast and incorporated at planting P & K applied year before to corn MESZ and Aspire applied as above No foliar protection Fungicide and Insecticide at R3 Untreated or Fungicide only Fungicide, Insecticide, Nematicide 76 cm row spacing 51 cm row spacing
49 Soybean Management Trials 2014 and sites in Illinois with: 6-7 plots at 3 locations Banded phosphate or broadcast potassium, or both at planting Different company seed (Asgrow, Syngenta, Croplan) and foliar protection products: BASF or Syngenta DeKalb (42 o N) Champaign (40 o N) Normal and full maturity variety All in 76 cm vs 51 cm rows, at a seeding rate of 384,000 plants/ha Harrisburg (37 o N)
50 Yield Response to Management 2014 Location Standard High Tech Δ tons hectare 1 DeKalb * Champaign * Harrisburg * Average * *Significant at P Average of two varieties in each trial
51 Yield Response to Management 2015 Location Standard High Tech Δ tons hectare 1 DeKalb * Champaign * Harrisburg * Average * *Significant at P Four to six varieties in each location
52 Standard vs High Tech System Phosphorus Potassium P and K Foliar Protection Seed Treatment Row Arrangement P applied year before to corn 84 kg P 2 O 5 as MESZ (N, P, S, & Zn) Banded cm under row at planting K applied year before to corn 84 kg K 2 O as Aspire (K & B) Broadcast and incorporated at planting P & K applied year before to corn MESZ and Aspire applied as above No foliar protection Fungicide and Insecticide at R3 Untreated or Fungicide only Fungicide, Insecticide, Nematicide 76 cm row spacing 51 cm row spacing
53 Add Technology Decrease Technology Soybean Omission Plot Design MANAGEMENT FACTORS Treatment Phosphate Potassium P & K Foliar Protec Seed treatment HIGH TECH Yes Yes Yes Yes Full -Phosphate None Yes Yes Yes Full -Potassium Yes None Yes Yes Full -P and K Yes Yes None Yes Full -Foliar Protection Yes Yes Yes None Full -Seed Treatment Yes Yes Yes Yes Basic TRADITIONAL None None None None Basic +Phosphate Yes None None None Basic +Potassium None Yes None None Basic +P and K None None Yes None Basic +Foliar Protection None None None Yes Basic +Seed Treatment None None None None Full Treatments evaluated in 76 and 51 cm row spacing
54 Add One Enhanced Factor to Standard Management Standard System Add One Enhanced Factor Yield D Standard Management 4.70 tons hectare -1 +Phosphorus (as MESZ also N,S, Zn) * +Potassium (as Aspire also B) Phosphorus & Potassium * +Fungicide & Insecticide (R3) * +Seed Treatment (at planting) Row Spacing (51 cm rows) * *Significantly different from standard at P Average of 10 trials over 2014 and 2015 with two varieties in each trial
55 Omit One Enhanced Factor from High Tech System High Tech System Omit One Enhanced Factor Yield D tons hectare -1 High Tech all Six Factors Phosphorus (fertility previous corn) * -Potassium (fertility previous corn) Phosphorus & Potassium * -Fungicide & Insecticide * -Seed Treatment (none or base) * -Row Arrangement (76 cm rows) * *Significantly different from standard at P Average of 10 trials over 2014 and 2015 with two varieties in each trial
56 Soybean Omission Plots Ave of 2014 & 2015 Trials *Significantly different at P Average of 10 trials over 2014 and 2015 with two varieties in each trial Standard High Tech Factor Yield D Yield D tons hectare -1 None or All Phosphate * * Potassium P & K * * Fung. + Insect * * Seed Treatment * Row Arrangement * *
57 Conclusions Soybean yield can be increased with better crop management Soil fertility, particularly phosphorus is one of the most important management factors for increasing soybean yields Variety makes a big difference and usually the fullest maturity gives the highest yield
58 Conclusions 60% of soybean yield comes from nodes 7-13, so it is important to protect leaves at those nodes Each of the six secrets of soybean can independently increase yield and when combined into a system they can act synergistically
59 Acknowledgements Personnel Brad Bandy Tryston Beyrer Tom Boas Ryan Becker Ross Bender Brad Bernhard Fernando Cantao Narjara Cantelmo Renato Carmargos Laura Gentry Claire Geiger Jason Haegele Andrew Harmon Cole Hendrix Adam Henninger Brandon Litherland Shelby Mann Jack Marshall Adriano Mastrodomenico Katie Parker Ellie Raup Alvero Santos Ana Scavone Juliann Seebauer Jiying Sun Martín Uribelarrea Mike Vincent Alison Vogel Kyle Vogelzang Wendy White
60 Crop Physiology Lab Sites & Farm Cooperators DeKalb DeKalb - Eric Lawler H.B. Babson Farms Champaign University Research Farm Champaign Harrisburg - Scott Berry Berry Farms Harrisburg
61 Acknowledgements Financial Support AGCO Agricen Agrium AgroFresh Albion BASF Calmer Corn Heads Crop Production Services Dawn Equipment Dow AgroSciences DuPont Pioneer Fluid Fertilizer Foundation Goemar GrowMark Honeywell Helena Chemical Company Illinois Soybean Association IPNI John Deere Koch Agronomic Service Midwestern BioAg Monsanto Mosaic Nachurs Netafim Orthman Rentech Syngenta Stoller Enterprises Valent BioSciences West Central WinField Solutions Wolf Trax Wyffels Hybrids
62 Very Special Thanks Le Rendez-vous Committee Mike Sevey The Mosaic Company For more information: Crop Physiology Laboratory at the University of Illinois
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