• Soil Fertility and Soil Testing Guideline for Arizona Cotton

      Silvertooth, Jeffrey C. (College of Agriculture, University of Arizona (Tucson, AZ), 2015-06)
      According to all available evidence, there are 20 total nutrients necessary for complete plant growth and development. Not all are required for all plants, but all have been found to be essential to some.
    • Soil Sampling and Analysis

      Walworth, James; Soil, Water & Enviromental Science (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006-07)
      Soil testing is comprised of four steps: Collection of a representative soil sample, laboratory analyses of the soil sample, interpretation of analytical results, and management recommendations based on interpreted analytical results.
    • Soil Sampling and Analysis

      Walworth, J. L. (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011-10)