Title: Making method of composite fertilizer containing rare-earth elements
Application Number: 90104678 Application Date: 1990.07.12
Publication Number: 1052843 Publication Date: 1991.07.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/00
Applicant(s) Name: Peng Baoming Address: 011500
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present invention relates to a method for producing a rare-earth multi-element compound fertilizer, wherein such elements as nitrogen, phosphorus, potassium and organic substances which are needed in a large quantity for growth of plants are mechanically mixed with nitric rare earth elements which improve soil structure and control the growth of plants and then pulverized to obtain the product.
Time: 8