Invention Grant
- Patent Title: Slow and controlled release polymeric sulfur fertilizer containing multiple nutrient elements and method for preparing the same
- Patent Title (中): 含有多种营养元素的缓释控释聚合硫肥及其制备方法
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Application No.: US14520107Application Date: 2014-10-21
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Publication No.: US09051222B1Publication Date: 2015-06-09
- Inventor: Yaqing Liu , Guizhe Zhao , Dongdong Cheng , Lifeng Zhou , Denghui Wu
- Applicant: North University of China
- Applicant Address: CN Taiyuan
- Assignee: North University of China
- Current Assignee: North University of China
- Current Assignee Address: CN Taiyuan
- Agency: Lathrop & Gage LLP
- Priority: CN201410058904 20140220
- Main IPC: C08G75/00
- IPC: C08G75/00 ; C05B17/00
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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