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Article
Estimating nitrogen losses -- early spring 2007
Integrated Crop Management News
  • John E. Sawyer, Iowa State University
Document Type
Article
Publication Date
5-14-2007
Abstract
One method to judge nitrogen (N) loss is to calculate an estimate. Predicting the exact amount is quite difficult as many factors affect losses. However, estimates can provide guidance for supplemental N applications. While the rainfall this spring has been substantial, it arrived early. This should help moderate loss compared to the same situation occurring in late spring or early summer. In the early spring, soils are colder, so conversion to nitrate and denitrification is slowed. However, having two large rainfall events means that some soils were saturated over a prolonged period. This increases the chance for loss.
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
John E. Sawyer. "Estimating nitrogen losses -- early spring 2007" (2007)
Available at: http://works.bepress.com/john-sawyer/109/