Project Number: 6064-21660-001-34-R
Project Type: Reimbursable Cooperative Agreement
Start Date: Apr 1, 2019
End Date: Mar 31, 2020
1) Determine cost-effective management practices to stabilize dryland soybean yield and economic return in major soil types and growing environments across Mississippi. This research will determine the effectiveness of broiler litter, municipal biosolids, and cover crop during the fallow season for increasing soil water infiltration, soil water holding capacity and organic matter, and minimizing runoff. 2) Apply agroecosystem models, in conjunction with field trials in Objective 1, to determine optimal management options for consistent dryland soybean yield across typical Mississippi weather conditions and in each of 16 dominant soil types based on 100-year daily weather records and on predicted daily weather in future 50 years.
Field trials will be conducted on private farms in Noxubee County (Good Farm, Blackland Prairie soil) and Delta Conservation Demonstration Center (DNDC) in Washington County (a silty clay loam soil) which have received poultry litter for 3-5 years. Field experiments will be carried out at Mississippi State University (MSU) experiment stations at Brooksville, Verona, Pontotoc, Starkville, and Stoneville in Mississippi. Poultry litter and commercial fertilizer treatments will be evaluated at Good Farm, MSU Starkville and Verona experiment stations. Agroecosystem models in conjunction with field trials will be applied to determine benefits of cover crop, and application of poultry litter, biochar, and biosolids.