Armstrong Memorial Research and Demonstration Farm

Soil Nitrogen and Carbon Management Project

Authors: , , ,


Nitrogen management and cropping system history (tillage and crop rotation) have direct impacts on soil organic nitrogen (N) and carbon (C) pools, and the tie between soil organic N and C. Specific organic-N pools in soil can be an important source of plant-available N. Nitrogen availability in the soil environment also plays a significant role in determining soil C status. The objectives of this project are to demonstrate corn N fertilization needs and the short- and long-term N–C relationships across diverse soils, productivity, and crop management systems; and to evaluate and demonstrate the potential of a new soil N test (the Illinois N Soil Test, which is based on a readily mineralized organic-N fraction – amino sugar-N) in Iowa.

Keywords: Agronomy

How to Cite: Sawyer, J. E. , Al-Kaisi, M. , Barker, D. W. & Dittmer, W. (2002) “Soil Nitrogen and Carbon Management Project”, Iowa State University Research and Demonstration Farms Progress Reports. 2001(1).