Title: Method for producing three elements solid composite fertilizer
Application Number: 89104901 Application Date: 1989.07.17
Publication Number: 1054056 Publication Date: 1991.08.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/00
Applicant(s) Name: Bai Hongbin Address:
Inventor(s) Name:
Attorney & Agent: LIU ZHIJU
Abstract:
     The present invention utilizes the scientific constituent and proportion of trace elements to achieve the result that the content of N, P or K each makes up 13% and their total content amounts to 39%. Said invention adds 1% quartz sand into ground phosphate ore, and through high temp. processing, the harmful impurities as phosphate, etc. are eliminated. For K salt, the electrolysis method is used to remove sodium ions. The produced composite fertilizer possesses the advantages of high fertility effect and no side effect.
Time: 8