Title: Fertilizer with pearlite carrier
Application Number: 91102939 Application Date: 1991.05.10
Publication Number: 1066646 Publication Date: 1992.12.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G3/04
Applicant(s) Name: Bi Keji Address: 062450
Inventor(s) Name: Bi Keji
Attorney & Agent: CHEN JIANMIN
Abstract:
     The present invention relates to a kind of fertilizer made by using expanded pearlite as carrier. It consists of carrier expanded pearlite, plant nutrient elements and additive used as coat. Its plant nutrient elements are nitrogen, phosphorus, potassium and trace elements. According to the product application and variety of crops the above-mentioned three ingredients can be designed into various optimum formula ratios, passed through adsorption of plant nutrient elements, addition of additive, those are granulated, so that the invented expanded fertilizer can be made up. Said invention has the advantages of loosening soil, water-retaining and moisture preserving, regulating soil-temp, aeration-oxygen-supplying and low-cost, etc..
Time: 4