Glass matrix type slow-release compound fertilizer and preparation method thereof

A compound fertilizer and substrate technology, applied in fertilizer mixtures, fertilization devices, applications, etc., to achieve the effect of saving energy and power costs, slowing down the release rate of nutrients, and reducing environmental pressure

Active Publication Date: 2011-06-15
INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a method for preparing a glass-based slow-release compound fertilizer, which solves the problem that a large amount of heat e

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The formula and mass ratio of a glass-based slow-release compound fertilizer are: 20 parts of waste glass, 50 parts of calcium carbide, 8 parts of calcium dihydrogen phosphate, 14 parts of potassium chloride, 8 parts of magnesium oxide, and 380 parts of nitrogen per liter tons of fertilizer (atmospheric pressure).

[0038] The specific steps of the preparation method of the glass-matrix slow-release compound fertilizer are the same as the specific embodiment, and the fertilizer particles of 2mm-5mm are prepared.

Embodiment 2

[0040] The formula and mass ratio of a glass-based slow-release compound fertilizer are as follows: 10 parts of sodium silicate, 60 parts of calcium carbide, 20 parts of calcium hydrogen phosphate, and 400 cubic meters of nitrogen per ton of fertilizer (standard atmospheric pressure).

[0041] The specific steps of the preparation method of the glass-matrix slow-release compound fertilizer are the same as the specific embodiment, and the fertilizer particles of 2mm-5mm are prepared.

Embodiment 3

[0043] The formula and mass ratio of a glass-based slow-release compound fertilizer are: 29 parts of sodium silicate, 1 part of calcium hydrogen phosphate, 40 parts of calcium carbide, 30 parts of potassium carbonate, 10 parts of manganese sulfate, and 400 cubic meters of nitrogen per ton Fertilizer (atmospheric pressure).

[0044] The specific steps of the preparation method of the glass-matrix slow-release compound fertilizer are the same as the specific embodiment, and the fertilizer particles of 2mm-5mm are prepared.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a glass matrix type slow-release compound fertilizer and a preparation method thereof. The compound fertilizer is prepared from the following components in parts by mass: 10-30 parts of waste glass, 40-60 parts of calcium carbide, 1-30 parts of phosphate fertilizer, 0-30 parts of potash fertilizer, 0-10 parts of filler and 300-400 cubic meter of nitrogen per ton of fertilizer (standard atmospheric pressure). The glass matrix type slow-release compound fertilizer has the functions of regulating the pH value of soil and improving the acidified soil, and can decrease therelease rate of the fertilizer nutrients, increase the utilization ratio of the nutrients, reduce the fertilizer loss and relieve the environmental pressure caused by fertilizer application; and the glass matrix type slow-release compound fertilizer has favorable ecological environment benefits, and solves the problem that the element nitrogen can not be easily added into the existing glass fertilizer by directly synthesizing calcium nitride at high temperature.

Description

technical field [0001] The invention belongs to the technical field of slow / controlled release fertilizers in fertilizer science, in particular to a glass matrix type slow release compound fertilizer which is compounded and fused with glass matrix materials and mineral fertilizers and a preparation method thereof. Background technique [0002] Since the 1980s, controlled-release fertilizers have become a research hotspot for new fertilizers at home and abroad. At present, a variety of controlled-release fertilizers have been developed at home and abroad, including low-water-soluble organic nitrogen compounds, low-water-soluble inorganic compounds, and physical fertilizers. Barrier-controlled release fertilizers and carrier-type controlled-release fertilizers, etc. However, although the research on controlled-release fertilizers has made great progress, there are still many deficiencies, especially the complex production process, high production costs and the difficulty of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C05G3/00
Inventor 丁洪张玉树郑祥州
Owner INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap