After that, she can plant a new crop. Cover crops are seen by many as a key solution for addressing southeast Minnesota’s nitrate water quality issues. Cover crops keep the soil covered over the ...

Filters only convert waste, and certainly not into something safe. Ammonia from fish is converted through nitrite and into nitrate. That much we all know, right? Water chemistry 101 right here.

Iowa needs to cut the amount of nitrate in five rivers — including the Cedar River — because of the threat it poses to drinking water, according to the U.S. Environmental Protection Agency.

Most soils contain a lot of potassium, but only a small amount—the soluble form of potassium, stored in water held in soil ... compaction and high levels of nitrate-nitrogen.