This blog provides a breakdown of nitrogen concentration and quantities by organ, and discusses the use of the corn stalk nitrate test as a way to measure residual N.

Read September's Founder's Note from Jackson Stansell, on "Purchasing for Profit."

By: Bob Gunzenhauser By far, most corn grown in the United States is for grain; a small amount is harvested for silage for ruminants like beef or dairy cattle. Of the 90-95 million acres of corn grown in the US yearly, about 6-7 million is devoted to corn silage. Despite this, corn silage can give us a very good indication of nitrogen uptake. Because the whole plant is harvested, analysis of the silage can provide a crude protein content, along with moisture content. If a y