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 ...

Saskatchewan trials show seed-placed phosphorus in canola rarely reduces yield but often reduces plant stands, shifting risk ...

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, ...

Regardless of whether it is for a row crop, pasture or cover crop, one expert agrees that a soil test is must. Dodge City, Kansas-based ServiTech Senior Laboratory Agronomist Fred Vocasek, says that ...

Farm Journal Field Agronomist Ken Ferrie says you must first understand your nutrient requirements. Tight profit margins have farmers searching for ways to control input costs, including fertilizer ...