Impacts of 4R Nitrogen Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage
IPNI-2014-USA-4RN16
Matthew Helmers, Iowa State University
Phone: 515-294-6717
Email:
219B Davidson Hall
Ames, IA 50011
Phone: 515-294-6717
Email:
219B Davidson Hall
Ames, IA 50011