Precision farming trials last year confirmed the old idea that manure can be a valuable source of nitrogen (N) for corn production. The results deserve special attention when both fertilizer N prices and environmental concerns are high. The trials were made possible by funding from the Iowa Corn Promotion Board and were conducted at 11 sites having an average size of 20 acres.
Iowa State University
Blackmer, Alfred M. and Van De Woestyne, Bradley Wilbert, "Save nitrogen dollars after manure" (2001). Integrated Crop Management News. 1934.
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