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Utilizing Late Season Cover Crops In A No-Till Environment. Dan Forgey Gettysburg, SD. A Special Thanks To. USDA-ARS (Dr. Shannon Osborne) Dakota Lakes ( Dr. Dwayne Beck) SDSU Extension (Ruth Beck - Terry Hall) NRCS (Jason Miller). Incorporating cover crops to increase soil quality.
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Utilizing Late Season Cover Crops In A No-Till Environment Dan Forgey Gettysburg, SD
A Special Thanks To USDA-ARS (Dr. Shannon Osborne) Dakota Lakes ( Dr. Dwayne Beck) SDSU Extension (Ruth Beck - Terry Hall) NRCS (Jason Miller)
Incorporating cover crops to increase soil quality
Benefits of Organic Matter Nutrient Supply 1. Each percent of organic matter releases 20 to 30 pounds of nitrogen 4.5 to 6 pounds phosphorus 2 to 3 pounds sulfur Managing Cover Crops Profitably Third Edition
2. Water Holding Capacity Organic matter act like a sponge. It will hold up to 90% of its weight in water. 3. Soil Structure Aggregation Organic matter causes soil to form aggregates which helps with water infiltration. 4. Erosion Prevention Increasing soil organic matter from 1 to 3 percent can reduce Erosion by 20 to 30 percent because of water infiltration.
Average Rainfall 18.5 inches rain
Cover Crops Used 57 Acres 1.Lentils 2.Canola 3.Cowpea 4.Canola/Lentils 5.Canola/Cowpea 6.Canola/Cowpea/Lentils 6.Radish/Cowpea/Lentils 7.Turnip/Cowpea/Lentils 8. No cover crop X 3
Methods Rotation Winter Wheat – Cover Crop - Corn 1. Fall Soil Samples (Aug and Oct) 2. Cover Crop Growth 3. Preplant Spring Soil Samples 4. Corn Biomass V6 and Soil Samples 5. Corn Biomass R1 and Soil Samples 6. Corn Grain Yield and Protien
Planting Cover Crops What will the neighbors think ?
This was the fun part watching them grow.
This is the future. Gettysburg FFA on a field day.
Fall Cover Crop Nitrogen 30 25 20 Plant Nitrogen, lb/ac 15 10 5 0 Lentil Canola Canola/Lentil Canola/Cowpea Turnip/Cowpea/Lentil Radish/Cowpea/Lentil Canola/Cowpea/Lentil
Regular Nitrogen At Planting No Nitrogen At Planting Time
Nitrogen No Nitrogen V6 Corn Biomass 180 160 140 120 100 Plant Dry Wt, lb/ac 80 60 40 20 0 Lentil Canola Cowpea Canola/Lentil No Cover Crop Canola/Cowpea Turnip/Cowpea/Lentil Canola/Cowpea/Lentil Radish/Cowpea/Lentil
Corn Yields Nitrogen No Nitrogen 180 170 160 Grain Yield, bu/ac 150 140 130 Lentil Canola Cowpea Canola/Lentil No Cover Crop Canola/Cowpea Turnip/Cowpea/Lentil Radish/Cowpea/Lentil Canola/Cowpea/Lentil
Corn Protein Nitrogen No Nitrogen 10 9 8 Grain Protein, % 7 6 5 Lentil Canola Cowpea Canola/Lentil No Cover Crop Canola/Cowpea Turnip/Cowpea/Lentil Radish/Cowpea/Lentil Canola/Cowpea/Lentil
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