Soil Testing & Fertilizer Recommendations

A goal of sound nutrient management is to maximize the proportion of applied nutrients that is used by the crop (nutrient use efficency). Soil sampling is a best management practice (BMP) for fertilizer management that will help improve nutrient use efficiency and protect the environment. Soil sampling is also one of the most important steps in a sound crop fertilization program.

A good soil testing program can be divided into four operations: (1) taking the sample, (2) analyzing the sample, (3) interpreting the sample analysis, and (4) making the fertilizer recommendations. Once you take a sample, you must send it to a laboratory for analysis.

The Ferry County Extension office can provide a soil test probe for free checkout, soil test bags, and informational brochures. The soil test labs generally charge $30 - $50 depending upon the test requested. After you receive your analysis, stop by the Ferry County or Colville Reservation office for help interpreting the analysis and specific fertilizer recommendations.