The dry conditions throughout large areas of Iowa during 2020 reminds us of Iowa’s last significant drought in 2012 and the subsequent impacts on nitrate-N levels in subsurface drainage the following spring. This article will address concerns for water quality in drought conditions and opportunities to reduce nutrient losses from fields this fall.
Iowa State University
Helmers, Matthew J., "Water Quality Impacts of Cover Crop Following a Drought" (2020). Integrated Crop Management News. 2653.
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