Soil testing is an essential tool for managing phosphorus (P), potassium (K) and other nutrients. In Iowa and many states, the units reported in a soil test are expressed in parts per million (ppm) of the elements (not oxides P₂O₅ or K₂O, as in fertilizers) of dry or moist soil depending on the test. Different test methods can be used for a specific nutrient.

As harvest wraps up, grain producers are reminded to actively monitor and manage stored grain. The following articles and resources are available: 

Practical Considerations when Reconditioning Overly Dry Soybeans

Time to Cool and Core Storage Bins

Iowa Grain Quality Initiative Training Modules