Studies show that efficiently limed fields are up to 84 percent more productive than unlimed fields. Lime also preserves the long-term productive capacity of the land. The Agronomic Division of the N.C. Department of Agriculture and Consumer Services conducts soil tests free of charge for all state citizens. Sample testing can be either predictive or diagnostic . The report provides site-specific recommendations based on soil type, current pH, fertility levels, and crop requirements.
Analysis is the same as for predictive samples, except that soluble salt levels are also measured.
The recommendations tell growers how to adjust fertilization according to site-specific demands. Importance of Representative Samples Improperly collected soil samples are the weak link in the soil testing chain. For test results to be useful, the sample must accurately reflect the conditions in the field . Always keep in mind that the Agronomic Division does not analyze your entire field but only the small portion of your field you bring in for analysis. Laboratory precision is worthless if the sample you submit differs from the soil you intend to treat.