Location: Soil and Water Management Research2013 Annual Report
1a. Objectives (from AD-416):
Our objective in this project is to advance understanding of physical processes and plant-soil microbial interactions that are the basis of functional differences between active-turnover and soil-building zones biology, and to examine the implications of these processes for resilience and adaptation to variable climates in cereal production systems.
1b. Approach (from AD-416):
We hypothesize that, relative to uniform management systems, precision zonal management systems change both physical and microbiological processes so as to substantially increase N- and water-use efficiency, improve soil C storage, and maintain high yield potential under more variable climate conditions. Our long-term goal is to understand the functional agroecology of precision zonal management systems that build upon current precision farming approaches (e.g. GPS guidance, variable rate fertilizer/agrochemical applications) to create highly resilient and sustainable field crop production systems.
3. Progress Report:
This was the second complete year of the five year project. The joint field plots of the project have been established at the Rosemount Experimental Station, along with 3 other sites (IL, MI, and PA). Soil incubations examining the temperature and moisture sensitivity of corn stover degradation have been initiated. A poster on the overview of the project was presented at the 2012 ASA/SSSA/CSSA annual conferences in Cincinnati, OH. ARS PI monitoring activities to evaluate research progress included: phone calls/conference calls, email communications.