Title: Compound fertilizer of N-P with wrapping film and production thereof
Application Number: 90105674 Application Date: 1990.06.02
Publication Number: 1057046 Publication Date: 1991.12.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05B17/00,C05G5/00
Applicant(s) Name: Xuyi Phosphate Fertilizer Factory, Jiangsu Prov. Address: 211700
Inventor(s) Name:
Attorney & Agent: CHEN JINGQIAO
Abstract:
     The present invention provides a new type of chemical fertilizer using urea as its core and calcium-magnesia phosphate fertilizer as its integument. The said compound N-P fertilizer can overcome shortcomings of usea effectively, e.g. it is easy to deliquesce during application, easy to be dissolved in water and lost, and easy to be volatilized due to ammoniation. It can also apply urea and phosphate fertilizer in combination, giving full play to N-P fertilizer efficency, thus increases fertilizer utilization ratio with advantages of both increased production and reduced cost.
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