Start Date: Jun 03, 2010
End Date: Jun 02, 2015
This research addresses priority science questions in the strategic plan for the Climate Change, Soils and Emissions Research (NP212) and provides a scientific foundation for decision-making and policy development. The five objectives in this project integrate studies focusing on effects of management practices on soil processes and sustainable crop growth and yield. Objective 1 addresses the need for improved databases and provides other information on the soil C stocks, C-sequestration, and GHG emission and fluxes of current and new soil management and cropping systems. These data bases will be used to improve models and decision support systems. Objective 2 studies address sustainable biofuel and irrigated conservation tillage production systems and practices to improve soil C sequestration, efficient use and recycling of applied nutrients (especially N), and minimize GHG emissions. Objective 3 studies focus on characterizing and measuring the influences and processes of environmental and plant-related controls on C and N cycling, pool dynamics, and storage in soils. Objective 4 examines soil productivity and remediation tools that reduce soil-borne diseases and protect soils and soil waters from damage from soil contaminants. The goal is to utilize microbial isolates and communities for bioenergy production, biocontrol of soil-borne pathogens, and to remediate damaged soils. Objective 5 studies focus on improving nutrient use efficiency, especially N, and developing more advanced decision support tools (e.g., indices and models) for improved nutrient management. The overall SPNR research focus is on biological processes and management practices that influence SOC, GHG emissions, microbial and rhizosphere biology, pesticide/nutrient/contaminant removal from soil, bioenergy production, and nutrient use efficiency. All of these research projects share the common goal of improving or maintaining farm profitability while practicing sustainable and environmentally friendly agriculture.