
Article
Phosphorus and Potassium in Silage Harvest of Drought-Damaged Corn
Integrated Crop Management News
Document Type
Article
Publication Date
7-27-2012
Disciplines
Abstract
The dry conditions this summer are resulting in quite variable corn growth and production potential. Some livestock producers are beginning harvest of corn damaged by drought conditions for silage. Corn silage harvest results in more phosphorus (P) and potassium (K) removal than grain alone because almost the entire plant is harvested. The increased amount removed with silage differs for P and K because the relative amount of P and K is different in corn vegetative parts than in grain. For P there can be approximately four times greater amount of P per ton of dry matter in grain than vegetative parts, but for K the opposite occurs, on average with almost three times greater amount of K per ton of dry matter in the vegetative parts.
Copyright Owner
Iowa State University
Copyright Date
2012
Language
en
File Format
application/pdf
Citation Information
John E. Sawyer and Antonio P. Mallarino. "Phosphorus and Potassium in Silage Harvest of Drought-Damaged Corn" (2012) Available at: http://works.bepress.com/john-sawyer/202/