Title: Zeolite contg. long-acting compound fertilizer
Application Number: 89105036 Application Date: 1989.03.20
Publication Number: 1045765 Publication Date: 1990.10.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G3/00
Applicant(s) Name: Shenyang Geology and Minerals Inst., Ministry of G Address:
Inventor(s) Name:
Attorney & Agent: YU FEI
Abstract:
     The present invention refers to a long-acting compound fertilizer contg. zeolite. The conventional fertilizer has shorter effectiveness with utilization ratio of about 50% due to decomposition, evaporation, and loss in water flow. When natural zeolite, abundant in resources, is added as additive to chemical fertilizer, its utilization ratio is increased by 22-33% and effectiveness by 2-3 times due to the adsorption of zeolite to the fertilizer. The said fertilizer has thus reduced in cost and pollution to crops, increased cation-exchanging energy in the soil, and provided some trace amount of elements into soil for crops growth.
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