Methods for Rapid Testing of Plant and Soil Nutrients

Low nutrient level s in soil are a recognized limitation to crop production . Yet, farmers in certain agro-ecoregions either do not apply fertilizers, apply inadequate amounts, or apply the wrong fertilizers due to a mismatch with the nutrient needs of their soil. In many cases, lack of availability of wet chemistry capabilities contribute to farmers in less developed regions not routinely conducting soil tests prior to fertilizer application. Fortunately, novel technologies and commercial products have become available, providing on-farm, timely, and relatively inexpensive soil and plant nutrient analytical services.