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Accessing the Full Nutrient Value of Crop Residue

Presented September 16, 2015

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Residue Breakdown & Nutrient Release: Special Considerations Unpredictable fall weather

•  Potential to shorten time for mechanical residue management and limit amount of natural residue breakdown

•  At colder temperatures (< 50° F), natural breakdown limited, locking up nutrients in residue

Plant genetics •  Lots of residue •  Bt genetics have higher lignin content – more durable stalks •  Can lead to uneven emergence and immobilization of applied

nutrients in the spring

Need… •  More efficient way to facilitate nutrient release à biochemical

technology

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Key Questions

We’ll discuss…

What is the value of crop residue?

How can we release nutrients from crop residue for the benefit of next season’s crops?

What is Extract PBA & how does it work?

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What Is the Value of Crop Residue?

Crop residue is… •  A good source of organic material for the soil •  A renewable natural resource rich in plant essential nutrients Percent of nutrient uptake remaining in residue… Corn (200 bushel) Wheat (80 bushel) •  Nitrogen (N) – 33% Nitrogen (N) – 32% •  Phosphorus (P) – 40% Phosphorus (P) – 21% •  Potassium (K) – 80% Potassium (K) – 78% •  Sulfur (S) – 44% Sulfur (S) – 58%

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Introducing

What Is Extract PBA? •  New product for residue management and nutrient release •  Proprietary formulation of Accomplish LM and Ammonium

Thiosulfate (ATS) Recommended Rates •  Applied at 1-2 gal/ac •  Recommend at least 1 gal of UAN Value Proposition •  High ROI •  Easy to apply •  Low cost •  Sustainable

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Extract PBA Label

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How Extract PBA Works

Two complementary functions…

•  Accomplish LM optimizes P&K availability by expediting nutrient cycling of residue through increased breakdown of stalks and stover

•  ATS creates a beneficial environment for

microbes essential for residue breakdown and nutrient cycling

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How Extract PBA Works

•  ATS provides N and S to enhance soil microbial activity, expediting nutrient availability

•  Nitrogen component helps

balance C:N ratio •  ATS also lowers the pH on

the residue surface, which increases microbial activity

Material   C:N Ratio  Rye straw   82:1  Wheat straw   80:1  Oat straw   70:1  Corn stover   57:1  Rye cover crop (anthesis)   37:1  Pea straw   29:1  Rye cover crop (vegetative)   26:1  Mature alfalfa hay   25:1  Ideal microbial diet   24:1  Rotted barnyard manure   20:1  Legume hay   17:1  Beef manure   17:1  Young alfalfa hay   13:1  Hairy vetch cover crop   11:1  Soil microbes (average)   8:1  

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How Extract PBA Works

Untreated Residue Treated Residue

N P

K

•  Slow process of residue breakdown •  Applied nutrients less available for plant

•  Rapid residue breakdown, even in cooler temperatures

•  Nutrients released and available for the plant to use

Result: “Ugly Corn Syndrome”

N

P K

Result: Stronger, Healthier Plant

N

P K

N P

K

N

P K

Slow, temperature-dependent breakdown

N

P

K

Rapid residue breakdown and nutrient release

N P K

Improved nutrient

mineralization

More nutrients available for plant

uptake during growing season

N N

Immobilization of applied N

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What the Numbers Say The value of nutrients in 1 ton of corn residue

(40 bushels of corn = 1 ton of residue)

Nutrient Lbs/ ton Nutrient Price $/lb Value $/ton*

N 17 $0.60 $10.20

P2O5 4 $0.90 $3.60

K2O 34 $0.40 $13.60

S 3 $0.50 $1.50

Total Value: $28.90

Assume Extract PBA increases residue breakdown/nutrient release by 20% = ~$29.00

*Based on current nutrient values

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Benefits: •  Greater residue decomposition increases the ease of

planting the next crop –  Decomposition is not always visible and continues even after

planting

•  Residue breakdown results in release or Extraction of nutrients from previous crop residue –  Approximately 33% nitrogen (N), 40% phosphorus (P) and

80% potassium (K) remains in residue –  This helps growers utilize the previous year’s

fertilizer investment

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Increased Residue Breakdown = Operational Advantages!

Agronomic Operational Advantages

Warmer soil temps

Ease of planting

More uniform stand

Faster emergence

Better yield potential

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Breakdown Residue = More Nutrients Released! Hamler, OH Fall broadcast Accomplish LM program with UAN – corn to soybeans

47.7 51.07 50.85 52.79 51.86

60.35

49.84

57.26 57.09 59.19 60.7 56.75

0

10

20

30

40

50

60

70

No Fall Accomplish Fall Accomplish

Check Fall Accomplish LM

ReNforce K (2 apps)

Radiate Awaken + Task Force 2 +

ReNforce K

ReNforce K + N Pact

ReNforce K + N Pact +

Aftershock

Accomplish LM applied at 2 qts/ac; ReNforce K applied at 1 gal/ac; Radiate applied at 2 oz/ac; Awaken applied at 2 qts/ac; N Pact applied at 1 gal/ac; Aftershock applied at 2 oz/ac

Bu/ac

LM

4.37 bu/a avg increase

Biochemical  technology  in  Extract  PBA  

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Accomplish LM – Increased Yield and Nitrogen Use Efficiency

Corn on Corn – Northeast IA (2010) Accomplish LM spring applied at 1.5 qts/ac in late March

209.2 209.6

216.4 217.2 218.3

221.0

200

204

208

212

216

220

224

GSP* Urea MESZ 28% UAN AMS Accomplish

*Grower Standard Practice – 200 units of N as fall applied NH3 Nitrogen Use Efficiency (NUE) = lb N applied/bu yield

Yield Results Bu/ac

0.96 1.14

1.11 1.10 1.10 0.90

$25 $137 $25 $38 $12

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The Second Year of the Study Demonstrated Similar Results

Corn on Corn – Northeast IA (2011) Accomplish LM spring applied at 1.5 qts/ac in late March

240.0 243.0

246.0

234.0

239.0

255.0

220

224

228

232

236

240

244

248

252

256

260

GSP* Urea MESZ 28% UAN AMS Accomplish

*Grower Standard Practice – 200 units of N as fall applied NH3 Nitrogen Use Efficiency (NUE) = lb N applied/bu yield

Yield Results Bu/ac

0.83 1.03 0.97 1.03 1.01 0.78

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Increased Soil P with Accomplish LM

Corn on Corn – Northeast IA (2011) Accomplish LM spring applied at 1.5 qts/ac in late March

2011 5 Location Field Trials Northeast Iowa

Location Check P2 Check P1 Accomplish LM P2 Accomplish LM P1

Garnavillo 51 37 76 47

Lamont 172 108 195 124

Nora Springs 82 54 89 64

Ossian 40 31 48 35

Waverly 214 124 325 150

Average 112 71 147 84

P1 18% greater

P2 31% greater

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Extract PBA Applications Labeled for residue management •  Corn going to soybeans (compatible with

fall herbicide applications) •  Wheat going to soybeans •  Wheat to wheat acres •  No-till/minimum till corn on corn acres

Also labeled for pre-emergence applications •  Spring broadcast fertilizer applications •  Corn and soybean pre-emerge herbicide applications

–  Matador –  Intimidator –  Many others

DO NOT use in-furrow or 2x2 •  Crop germination/seedling injury highly likely

to occur if used through the planter

ATS salt index is 90.4, compared to 10-34-0 at 20.0

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Summary

•  Valuable nutrients for next season’s crops are locked in this year’s crop residues

•  Residue application of Extract PBA accelerates and improves residue breakdown, nutrient release and nutrient mineralization –  Not temperature sensitive – addresses nutrient release

challenges after late harvest –  Effective across variety of tillage practices, even in

high-residue fields –  Pays for itself with exceptional ROI for the grower

•  Extract PBA is a product to address residue and should not be used in furrow or 2x2

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Actions to Take Now

Focus on fall applications •  Corn to soybean, wheat on wheat,

corn on corn •  Remember to combine with

herbicide applications

Product info •  Pack sizes: bulk, 275 gallon totes

and 2x2.5s (limited volume here)

Let’s Get Growing!

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