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Article
Estimating Nitrogen Losses
Integrated Crop Management News
  • John E. Sawyer, Iowa State University
Document Type
Article
Publication Date
6-11-2008
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. Excess rainfall this spring occurred in two “periods.” The first arrived early. Loss during that time should have been moderate compared to the same situation that has occurred this late spring. In the early spring, soils were colder, so conversion to nitrate and denitrification was slower. However, wet soils in late spring are warmer and have been saturated for a prolonged period. This significantly increases the chance for loss.

Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
John E. Sawyer. "Estimating Nitrogen Losses" (2008)
Available at: http://works.bepress.com/john-sawyer/105/