CO2 slow-release gas-fertilizer of two-component solid hanging-bag type and production method

A carbon dioxide and two-component technology, applied in horticultural methods, botanical equipment and methods, nitrogen fertilizer, etc., can solve the problems of unsuitable carbon dioxide gas diffusion, easy to change soil chemical composition, and low fertilization efficiency, so as to reduce the burden on farmers, Ease of promotion, storage and transportation

Inactive Publication Date: 2006-10-25
石磊 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, since the air fertilizer is directly applied to the soil, on the one hand, it is easy to change the chemical composition of the soil, causing environmental risks; on the other hand, it is not suitable for the diffusion of carbon dioxide gas, and the efficiency of fertilization is not high

Method used

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  • CO2 slow-release gas-fertilizer of two-component solid hanging-bag type and production method
  • CO2 slow-release gas-fertilizer of two-component solid hanging-bag type and production method
  • CO2 slow-release gas-fertilizer of two-component solid hanging-bag type and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Raw materials: 20 grams of raw diatomite, 200 milliliters of 40% sulfuric acid, and 980 grams of ammonium bicarbonate.

[0027] Steps: Add 20 grams of diatomite raw ore to 200 milliliters of 40% sulfuric acid solution under stirring, stir for 8 hours, then filter, and send the slurry into a ball mill for wet grinding for 4 hours and dry it at 120°C until it is fluffy, and finally The modified diatomite slow-release agent can be prepared by calcining at 500°C for 2 hours. The specific surface area of ​​this sustained release agent is about 70m 2 / g, the pH value of its 10% suspension is about 5.50. The sustained-release agent and the ammonium bicarbonate are packaged separately to obtain the finished product.

Embodiment 2

[0029] The calcining temperature of Example 1 is adjusted to 700° C., and other processing conditions are the same as Example 1. The specific surface area of ​​this sustained release agent is about 110m 2 / g, the pH value of its 10% suspension is about 5.35.

Embodiment 3

[0031] The calcining time of example 1 is adjusted to 5 hours, and other process conditions are identical with example 1. The specific surface area of ​​this sustained release agent is about 80m 2 / g, the pH value of its 10% suspension is about 6.05.

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Abstract

The present invention discloses a double-component solid bag-hanging carbon dioxide delayed release gas fertilization agent. Said invention includes two solid components of delayed release agent and solid carbonate, they are chemically-modified diatomite and ammonium hydrogen carbonate respectively. Said invention also provides its concrete preparation method and its application method.

Description

1. Technical field: [0001] The invention belongs to the field of chemical fertilizers, and in particular relates to a two-component solid hanging bag type carbon dioxide slow-release gas fertilizer prepared by utilizing the mechanism of ammonium bicarbonate to slow-release carbon dioxide gas under the action of modified diatomite and a manufacturing method thereof. 2. Background technology: [0002] carbon dioxide (CO 2 ) is the necessary material basis for crop photosynthesis, and plays the same role as water and fertilizer for crop growth and development. Many countries attach great importance to the artificial supplementation of carbon dioxide, calling carbon dioxide "gas fertilizer", and listing carbon dioxide topdressing as an important measure to increase crop production. In 1920, Germany first proposed the "carbon dioxide fertilization" technology. This technology is based on the fact that a large amount of CO is required for photosynthesis during crop growth. 2 Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/02C05C3/00C05G3/90
Inventor 石磊周黎琼
Owner 石磊
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