Slow and controlled release polymeric sulfur fertilizer containing multiple nutrient elements and method for preparing the same
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United States of America Patent
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Jun 9, 2015
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Oct 21, 2014
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Feb 20, 2014
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Abstract
The present invention provides a slow and controlled release polymeric sulfur fertilizer containing multiple nutrient elements. The slow and controlled release polymeric sulfur fertilizer is represented by the following formula, in which m=1-4, and n=100-210. The element sulfur in the slow and controlled release polymeric sulfur fertilizer according to embodiments of the present invention has very high utilization rate.
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