Title: Lawn fertilizer and productive technology thereof
Application Number: 91103375 Application Date: 1991.05.28
Publication Number: 1067235 Publication Date: 1992.12.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/00
Applicant(s) Name: Jinnan Chemical Fertilizer Experiment Plant, Tianj Address: 300352
Inventor(s) Name: Cheng Yuanyou
Attorney & Agent:
Abstract:
     This invention relates to a kind of special fertilizer for the lawn of sports ground. Its preparing process is as follows: 10-25% by wt. of (NH4)SO4, 1-20% by wt. of CO(NH2)2, 40-50% by wt. of superphosphate and a certain amount of activator are taken to form a compound through two-step process, and the superphosphate is obtained by using the mixing reaction of powdered phosphate rock with sulphuric acid. The manufacturing process is simple, the contents of effective components, granularity and compressive strength of the products are in conformity with the requirements of lawn horticulture, and they promote lawn growth in the spring and dry substance accumulation in the autumn, and prolong the greening period.
Time: 6
<- Previous Patent:Natural constituent nutrient solu...   |  Next Patent:Double-effective micro fertilizer ->