A corn producer wants to apply a total of 350 pounds of nitrogen per acre on his field. He has spread 10 tons per acre of dry manure with an average analysis of 18 pounds of nitrogen per ton, of which only 60% of the N will be available the first year. How many additional pounds of nitrogen must he apply?
Answer: For 150 bushels, we recommend 180 pounds of nitrogen per acre. For 200 bushels, you go up to 240 pounds, and for 250 bushels, go to 300 pounds. For 300 bushels per acre, we recommend more than 360 pounds of nitrogen per acre,”
