Manure Side-Dress Nitrogen

Corn and Wheat Plots

Glen Arnold, OSU Extension EducatorJon Rausch, OSUE State Extension Associate

Manure

No Manure

Animal ManureApplied to Growing Crops

Swine manure was applied as top dress nitrogen on wheat in late winter of 2006 & 2007 in replicated plots and yields compared to UREA.

Swine manure was applied as side dress nitrogen to corn in June of 2005 & 2006 in replicated plots and yields compared to 28% UAN.

Target rate 3,500 gal/ ac

Manure Nutrient Analysis

(Brookside) SwineManure TN 21 lb/1,000 gal

Manure NH3 19 lb/1,000 gal

Manure ON 2 lb/1,000 galManure Avail N 19 lb/1,000 gal

Manure P2O5 8 lb/1,000 gal

Manure K2O 15 lb/1,000 gal

Calcium 5.28 lb/1,000 galMagnesium 1.68 lb/1,000 galSodium 3.35 lb/1,000 galSulfur 2.35 lb/1,000 galboron 0.03 lb/1,000 galIron 0.804 lb/1,000 galMaganese 0.057 lb/1,000 gal

Estimating the Value of Animal Manure

Swine Manure Value per

lbs/1000 gallon 1000 gal.

Nitrogen 42¢/lb 19 lbs $ 7.98

P2O5 32¢/lb 8 lbs $ 2.56

K2O 20¢/lb 15 lbs $ 3.00

Total $13.54

AGCO Grassland Applicator

Wheat Top Dress Test PlotHarvested July 7, 2006

Type of topdress Applied Avg. Yield Per/ac

Swine Manure 3,250 gallons per acre

95.73

Urea Fertilizer 105 units of nitrogen per acre

87.14

No Fertilizer applied 83.28

Wheat Topdress Test PlotHarvested July 3, 2007

Type of Topdress Applied Avg. Yield Per/ac

Nursery Swine Manure 6,000 gallons per acre

(incorporated)

84.46

Urea fertilizer 94 lbs. of nitrogen per acre

83.70

Leopold Field

Wheat Topdress Test PlotHarvested July 4, 2007

Type of topdress Applied Yield bu/ac

Swine Manure 5,000 gallons per acre

(Surface applied)

102.2

Swine Manure 5,000 gallons per acre

(Incorporated)

98.0

Urea Fertilizer 105 units of nitrogen per acre

86.5

Niese Field

Corn Plot Objectives

Determine if manure applied as side dress nitrogen during the growing season provides adequate nutrients to maintain yield

Determine if application equipment is available to accurately side dress corn with liquid manure.

Corn Treatments Using an Aeroway Toolbar

Treatment 1 – incorporation of liquid swine nursery manure

Treatment 2 – 99% liquid swine manure plus 1% 28% UAN (17 gallons of 28% UAN added to the 2400 gallon tank of swine nursery manure)

Treatment 3 – 28% UAN injection of liquid nitrogen

3,500 gal/ac swine manure

2006 Yield Data

Yield PSNT End of Year Stalk

Total N Side-dress N

(bu/ac) (ppm) Test (ppm)

(lb/ac) (lb/ac)

Avg. Treatment 1 (Manure only)

196.7 15.9 2,518 172 131

Avg. Treatment 2 (Manure + 28%)

194.1 13.5 1,525 129 88

Avg. Treatment 3 (28% only)

193.3 15.6 1,619 191 150

Average all Plots 194.9 15.0 1,888 164 122

Swine Manure Yield SummaryTwo Years Data

On Corn

Manure 28% Blended

2006 195bu/ac 194bu/ac 192bu/ac

2005 125bu/ac 125bu/ac 127bu/ac

Summary

Swine manure has matched or exceeded wheat and corn yields compared to traditional inorganic fertilizers

Equipment is available to accurately apply manure to growing crops

More research is needed to find more efficient manure application methods and also seek to reduce potential compaction