It’s more important than ever to have a very high soil test for phosphorus (P). New University of Minnesota research at Waseca showed that soils with a very high P test (Bray P=22 ppm)-with no extra ...

WEST LAFAYETTE, Ind. - With fertilizer prices the highest they've ever been, the most important thing row crop growers can do is take a soil sample and have it analyzed, said Purdue University ...

A soil test for phosphorus represents an index of phosphorus availability to crops. A soil test needs to correlate to crop response in order to provide a useful index of crop response and any ...

When people think about agricultural pollution, they often picture what is easy to see: fertilizer spreaders crossing fields ...

Minimizing nonpoint source pollution of surface waters by phosphorus (P) from agricultural cropland requires management practices that control both the supply and transport of soil P. The basic ...

Question: I am concerned about the environment and would like to know how to reduce the amount of phosphorus I am using. In particular, is there a good way to promote root growth in lawns without ...

Crops often receive beneficial nutrients such as phosphorus (P) from manure or commercial fertilizer applications. However, the Delaware Nutrient Management Law (3 Del. C. § 2247) limits the amount of ...

Very dry conditions, like those seen in most of Arkansas this fall, impact two aspects of soil sampling that make it hard to measure how much phosphorus and potassium are in a field. Arkansas ...

BROOKINGS, S.D. -- Lower phosphate fertilizer prices have generated interest among farmers to build soil phosphorus levels. At the same time, the practice is puzzling to some, explains Ron Gelderman, ...