• Management alternatives for urea use in corn and wheat production 

    Medeiros, João A. S. (University of Missouri--Columbia, 2006)
    Traditionally, urea has been incorporated to avoid losses of N by ammonia volatilization. However, this option is not available when topdressing wheat. The objective of this project is to evaluate several strategies designed ...
  • Reflectance sensors to predict mid-season nitrogen need of cotton 

    Oliveira, Luciane Farias de (University of Missouri--Columbia, 2008)
    Nitrogen (N) is an essential nutrient for cotton production; consequently there is a tendency to over-apply nitrogen. High N causes excessive vegetative growth and delayed crop maturity, which result in increased cost in ...