Basis of the Corn Stalk Nitrate Test Corn plants that do not have an adequate supply of available N in the soil translocate N from stalks and leaves to the grain during the grain-filling period. Under ...

The most common soil N test is the pre-sidedress nitrate test (PSNT), which can reliably estimate the contribution of soil N to the overall N requirement of corn. Managing N based on results of a PSNT ...

In this study, different methods were used to measure how much nitrate, a component of nitrogen fertilizer, was seeping down through the soil in a tomato and cucumber crop near Esparto ...

Adding these nitrate levels can be because of land use or soil types, and these tests can potentially prevent health risks.

Many residential wells in Umatilla and Morrow counties tap into an aquifer contaminated with nitrates, a potentially harmful byproduct of agricultural activity.