Larger diameter probes may be needed for rocky or sandy soils. Use plastic sleeves that line sample probes to prevent sample contamination or to keep cores intact for later analysis. Deeper subsoil sampling may be necessary to evaluate potential sources of minerals at reclamation sites. Whether sampling for environmental or agricultural purposes, it is important to obtain a sufficient number of subsamples to adequately evaluate a site. Information Form Fill out the information form completely.
Interpretations depend on a series of field and crop factors.
Such items as past crop, manuring, crop to be grown and its yield goal, and irrigation, all enter into the final fertilizer recommendation. Without this information, a fertilizer recommendation cannot be tailored to the specific situation. Mail samples directly to the laboratory of your choice for analysis. Go to top of this page. Updated Wednesday, May 02, 2001.