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ARS Home » Southeast Area » Mississippi State, Mississippi » Crop Science Research Laboratory » Genetics and Sustainable Agriculture Research » Research » Research Project #432339

Research Project: Stablizing Dryland Soybean Yield and Profit in Dominant Soils Across Mississippi (MSPB Project 62-2017)

Location: Genetics and Sustainable Agriculture Research

Project Number: 6064-21660-001-25-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Apr 1, 2017
End Date: Jun 30, 2018

1. Determine cost-effective manangement practices to stablize dryland soybean yield and economic return in major soil types and growing enviroments across Mississippi. This research will evalulate and identify effective manangement of broiler litter, municipal biosolids, and cover crop during the fallow season for increasing soil water infiltration, soil water holding capacity and organic matterm 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 the 16 dominant soil types based on 100-year daily weather records and on predicated daily weather in future 50 years. 3. Conduct economic analysis using results of field trials (Objective 1) and simulation studies (Objective 2) to compare the cost and return of using soil organic amendments or/and cover crop in comparison with conventional manangement practices. The goal is to help non-irrigated soybean growers in different Mississippi enviroments determine the long-term profit-maximizing manangement practices for a soil type, topography, precipitation pattern, and other climate conditions found on their farm.

Field trials will be conducted on private farms in Noxubee County (Good Farm, Blackland Prairie Soil) and Bolivar County (Prewitt Farm, Delta alluvial soil) which have received poultry litter or municipal biosolids for 3-5 years. Field experiments will also be carried out at Mississippi State University (MSU) experiment stations at Brooksville, Verona, Pontotoc, Starkville, and Stoneville, Mississippi.