darlee

Darlington County Cotton Project: 

Darlington County Cotton Project Growing Cotton with Poultry Litter David Gunter Clemson University Extension Service March 4, 2004 Funded by Sustainable Agriculture Research and Education SARE Project

Questions?Is Poultry Litter a viable option for Cotton Production?Can comparable yields be obtained?Is it a better bottom line? : 

Questions? Is Poultry Litter a viable option for Cotton Production? Can comparable yields be obtained? Is it a better bottom line?

Discussion Outline: 

Discussion Outline Introduction Sampling - Soil 6” - Soil 12-36” - Plant Tissue Discussion

Project Introduction: 

Project Introduction Poultry Litter versus Commercial Fertilizer 3 farms, 3 reps each side by side 1 farm planted strip till, litter remained on the surface 2 farms planted conventional, litter incorporated 2 farms used purchased layer litter, 1 farm used his own broiler

Project Layout: 

Manure Fertilizer Project Layout

Project Introduction: 

Project Introduction Poultry Litter (per acre) Commercial Fertilizer (per acre) Field 1 2 tons spread 200 lbs. 0-0-52 10 gal 28-S at planting 10 gal 28-S at planting 15 gal 28-S at layby 24 gal 28-S at layby Field 2 2 tons spread 200 lbs. 6-12-38 0 at planting 10 gal at planting 0 at layby 24 gal at layby Field 3 2 tons spread 400 lbs. 3-7-38 10 gal at planting 10 gal at planting 24 gal at layby 24 gal at layby Fertilizer Applied according to soil tests 3 replications per treatment

Lbs/ton in Poultry Litter: 

Lbs/ton in Poultry Litter

Discussion Outline: 

Discussion Outline Introduction Sampling - Soil 6” - Soil 12-36” - Plant Tissue Discussion

Project Sampling: 

Project Sampling All Reps. were sampled on 4/03--preapp. *6/03--post app.(E) *7/03--grow *8/03--grow(L) 11/03--post harvest *including plant tissue

PreApp pH, N, P, K Results: 

PreApp pH, N, P, K Results

PreApp Ca, Mg Results: 

PreApp Ca, Mg Results

PreApp Zn, Mn, Cu, B, Na Results: 

PreApp Zn, Mn, Cu, B, Na Results

Early Post pH, N, P, K Results: 

Early Post pH, N, P, K Results

Early Post Ca, Mg Results: 

Early Post Ca, Mg Results

Early Post Zn, Mn, Cu, B, Na Results: 

Early Post Zn, Mn, Cu, B, Na Results

Late Post pH, N, P, K Results: 

Late Post pH, N, P, K Results

Late Post Ca, Mg Results: 

Late Post Ca, Mg Results

Late Post Zn, Mn, Cu, B, Na Results: 

Late Post Zn, Mn, Cu, B, Na Results

Avg. pH, N,P, K in Soil Analysis: 

Avg. pH, N,P, K in Soil Analysis 6 inch Samples

Avg. Ca, Mg in Soil Analysis: 

Avg. Ca, Mg in Soil Analysis 6 inch Samples

Avg. Minor Elements in Soil Analysis: 

Avg. Minor Elements in Soil Analysis 6 inch Samples

Discussion Outline: 

Discussion Outline Introduction Sampling - Soil 6” - Soil 12-36” - Plant Tissue Discussion

Project Sampling: 

Project Sampling All Reps. were deep sampled on (12”-36”) 4/29--preapp. 7/2--grow (E) 8/12--grow (L) 11/14--post harvest

pH at Different Soil Depths: 

pH at Different Soil Depths

Nitrates at Different Soil Depths: 

Nitrates at Different Soil Depths

P at Different Soil Depths: 

P at Different Soil Depths

K at Different Soil Depths : 

K at Different Soil Depths

Discussion Outline: 

Discussion Outline Introduction Sampling - Soil 6” - Soil 12-36” - Plant Tissue Discussion

Leaf Tissue Nitrate 6/03: 

Leaf Tissue Nitrate 6/03

Leaf Tissue Nitrate 8/03: 

Leaf Tissue Nitrate 8/03

Leaf Tissue Phosphorus 6/03: 

Leaf Tissue Phosphorus 6/03

Leaf Tissue Phosphorus 8/03: 

Leaf Tissue Phosphorus 8/03

Leaf Tissue Potash 6/03: 

Leaf Tissue Potash 6/03

Leaf Tissue Potash 8/03: 

Leaf Tissue Potash 8/03

Nematodes: 

Nematodes

Discussion Outline: 

Discussion Outline Introduction Sampling - Soil 6” - Soil 12-36” - Plant Tissue Discussion

Manure Plot Wood Field 6/20: 

Manure Plot Wood Field 6/20

Fertilizer Plot Wood Field 6/20: 

Fertilizer Plot Wood Field 6/20

Manure Plot Wood Field 7/10: 

Manure Plot Wood Field 7/10

Fertilizer Plot Wood Field 7/10: 

Fertilizer Plot Wood Field 7/10

Wood Side by Side 7/10: 

Wood Side by Side 7/10

Manure Plot Wood Field 9/30: 

Manure Plot Wood Field 9/30

Fertilizer Plot Wood Field 9/30 : 

Fertilizer Plot Wood Field 9/30

Manure Plot Wood Field 10/17: 

Manure Plot Wood Field 10/17

Fertilizer Plot Wood Field 10/17 : 

Fertilizer Plot Wood Field 10/17

Manure Plot Wood Field 10/23: 

Manure Plot Wood Field 10/23

Fertilizer Plot Wood Field 10/23: 

Fertilizer Plot Wood Field 10/23

Nutrient Management Costs: 

Nutrient Management Costs Poultry Litter (per acre) Commercial Fertilizer (per acre) Field 1 2 tons spread $38.00 200 lbs. 0-0-52 $19.20 10 gal 28-S at planting 7.45 10 gal 28-S at planting 7.45 15 gal 28-S at layby 11.18 24 gal 28-S at layby 17.88 $56.63 $44.53 Field 2 2 tons spread $12.00 200 lbs. 6-12-38 $22.00 0 at planting .00 10 gal at planting 7.45 0 at layby .00 24 gal at layby 17.88 $12.00 $47.33 Field 3 2 tons spread $38.00 400 lbs. 3-7-38 $37.00 10 gal at planting 7.45 10 gal at planting 7.45 24 gal at layby 17.88 24 gal at layby 17.88 $63.33 $62.33

Project Yields: 

Project Yields Field 1 Field 2 Field 3 Fert Avg 935.72 723.73 611.14 Litter Avg 945.61 737.28 580.71 Difference 9.89 13.55 -30.43 Costs -$12.10 $35.33 $1.00

Questions?Is Poultry Litter a viable option for Cotton Production?Can comparable yields be obtained?Is it a better bottom line? : 

Questions? Is Poultry Litter a viable option for Cotton Production? Can comparable yields be obtained? Is it a better bottom line?

Darlington County Cotton Project: 

Darlington County Cotton Project Growing Cotton with Poultry Litter David Gunter Clemson University Extension Service March 4, 2004 Funded by Sustainable Agriculture Research and Education SARE Project