Now showing items 1-2 of 2

  • End-of-season corn stalk nitrate-nitrogen test for post-harvest evaluation 

    Inglis, Debbie, 1953-; Gundersen, Babette (Pullman, Washington : Washington State University Extension, 2019-11)
    Sufficient supply of nitrogen (N) plays a key role in corn productivity and profitability. Excess nitrogen application wastes farmers’ money, increases the risk of groundwater and surface water contamination, and contributes ...
  • Petiole sap nitrate-N quick test for determining nitrogen status of tomato 

    Buajaila, Fairuz; Miles, Carol A. (Pullman, Washington : Washington State University Extension, 2019-01)
    Most vegetable farmers use nitrogen fertilizers to increase crop yield and quality. However, applying more nitrogen than the crop can take up increases production costs and may contribute to environmental pollution. To ...