Where no nitrogen response is found, it often means that a soil test could have shown that not much was needed.

Getting the most efficient nitrogen use

Soil testing is vital to identify where nitrogen is needed

A significant amount of nitrogen applied to fields is never taken up by plants. Understanding how much nitrogen (N) crops actually need can help decrease needless expenses and potential environmental […] Read more


Sierra Mixe corn variety found in Oaxaca, Mexico.

Corn that finds its own nitrogen

Science Notes: Researchers have known about it since the 1980s but were only recently able to analyze it

Is it possible to grow cereal crops without having to rely on energy-using commercial fertilizers? In a new study publishing Aug. 7 in the open-access journal PLOS Biology researchers describe […] Read more