Absolute fertility values for manure are very difficult to develop without a laboratory analysis due to the many variable conditions involved. Certainly the fertilizer value of manure increases as fertilizer cost increases, but beyond that there is an unmeasured value to the soil in better tilth and moisture holding capacities.
We’ve compiled here a list of tests that might interest you based on your specific search.
We’ve compiled here a list of resources that might interest you based on your specific search.
This document contains a walk-through of the soil auto submit system. It provides instructions on how to identify samples, order tests, and request recommendations for surface and sub-soil samples so that the lab can report the information you need to maximize your crop yield.READ MORE
Soil Sulfur levels can be affected by differences in soil texture, irrigation water, types of irrigation, soil drainage, sodium levels, and history of sulfur fertilization.READ MORE
Profitable crop production largely depends on adequate amounts of available nitrogen. In continuous corn, for example, the dollar return per one dollar invested in nitrogen fertilizer can be as high as eight to one. However, as beneficial and profitable as nitrgoen fertilizer is to crop production, continued inputs of nitrogen fertilizers have increasingly been a concern regarding occurrence of nitrates in ground and surface waters. Consequently, both crop production economics and environmental concerns necessarily demand increasing the judicious and efficient use of nitrogen fertilizers.READ MORE