Too much nitrogen

The Organic Fertilizer Surprise video on our YouTube channel shows typical symptoms of excessive nitrogen (N) application.

The video also explains some of the chemical reactions that happen in soil as N moves to ammonium and nitrate forms.

Even organic fertilizers, which we usually consider to have a low burn potential, can cause big problems when applied at high rates.

We recommend keeping soil nitrate below 20 ppm and soil ammonium below 7 ppm. We call the sum of nitrate…