Title: Preparation method for long term effect weed control compound fertilizer for rice
Application Number: 89105160 Application Date: 1989.09.12
Publication Number: 1050179 Publication Date: 1991.03.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/00
Applicant(s) Name: Shenyang Inst. of S[pecialities of the Northeast Address:
Inventor(s) Name: Chen Hubao, Zhang Zhiming
Attorney & Agent: XU ZONGFU
Abstract:
     This invention relates to productive process of compound fertilizer for crop. It mixes ures with potassium sulfate and superphosphate, and adding urea synergish D, silicic acid, zine sulfate, butyloxamine, sulfonyl-urea B, PP33, and sterring under ordinary temp. and pressure, sifting 0.5 cm mesh, a granulated fertilizer is prodiced. Using this compound fertilizer can realize once spreading manure, needn't topdressing and weeding. It has advantages of saving labour, saving time and long acting, soures of raw material is in abundance, it is simple in process.
Time: 3