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Compound water retention soil conditioner and preparation thereof

A soil improver and water-retaining technology, applied in urea compound fertilizers, fertilizer mixtures, organic fertilizers, etc., can solve problems such as the decrease in the number and quality of aggregates, the sharp decrease in soil organic matter content, and the deterioration of soil physical properties, so as to accelerate metabolism , reduce salt damage, improve the effect of water and fertilizer retention

Inactive Publication Date: 2010-06-09
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to long-term one-sided attention to chemical fertilizers, the content of soil organic matter has dropped sharply, soil physical properties have deteriorated, especially the decline in the number and quality of aggregates, and soil aeration has deteriorated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1 kg of wood bran, 10 kg of peanut cake, 3 kg of lignite, and 0.005 kg of yeast are crushed and added to about 1.5 kg of diluted urea solution (the weight concentration of urea solution is 10%) for mixing, and after mixing, stack and ferment at room temperature for two weeks (or use fermentation equipment to ferment, the fermentation time can be shortened to 24-72 hours), after that, dry it in the air for three days (or dry it with a drying mechanism), and become a dry product of about 10 kg (organic matter ≥ 70%), And carry out secondary pulverization, cross 100 mesh sieves.

[0022] Soak 3 kg of attapulgite in 10% hydrochloric acid by weight for 24 hours, dry at 120°C until constant weight, and crush it for later use. Add 8 kg of cornstarch to distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 3 kg of attapulgite, 10 kg of organic matter, 0.3 kg of initiator potassium persulfate, 20 kg of acrylamide, 0.07 kg of cross-linking agent polyethylene...

Embodiment 2

[0026] Put 10 grams of wood bran, 150 grams of bean cake, 35 grams of lignite, and 0.07 grams of yeast. After crushing, add 20 grams of urea solution with a total concentration of 10% for stirring. The time can be shortened to 24-48 hours), and then dried in the air for three days (or dried with a dryer), becoming a dry product of about 140 grams, which is pulverized for the second time and passed through a 100-mesh sieve.

[0027] Soak 78 grams of attapulgite in hydrochloric acid with a total concentration of 10% for 24 hours, bake at 120° C. to constant weight, and grind it for later use.

[0028]Add 150 grams of cornstarch into distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 78 grams of attapulgite, 140 grams of organic matter, 6 grams of initiator ammonium sulfate, 120 grams of acrylamide, 2 gram of cross-linking agent polyethylene glycol diglycidyl ether and 1L of water, raise the temperature to 50-70°C and keep for 3-5 hours. Then the temperat...

Embodiment 3

[0032] Put 25 grams of wood bran, 375 grams of bean cake, 90 grams of peat, and 0.2 grams of yeast. After crushing, add 50 grams of urea solution with a total concentration of 10% for stirring. The time can be shortened to 24-48 hours), and then dried in the air for three days (or dried with a dryer), becoming a dry product of about 340 grams, which is pulverized for the second time and passed through a 100-mesh sieve.

[0033] Soak 200 grams of attapulgite in hydrochloric acid with a total concentration of 10% for 24 hours, bake at 120° C. to constant weight, and grind it for later use.

[0034] Add 375 grams of cornstarch into distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 200 grams of attapulgite, 340 grams of organic matter, 15 grams of initiator ammonium sulfate, 300 grams of acrylamide, 5 gram of cross-linking agent polyethylene glycol diglycidyl ether and 3L of water, raise the temperature to 50-70°C and keep for 3-5 hours. Then the temperat...

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Abstract

The invention relates to a soil conditioner, in particular to a compound water retention soil conditioner and preparation thereof. The soil conditioner comprises the components by weight parts: 100 to 200 parts of organic matter, 0.2 to 3 parts of active cover agent, 150 to 200 parts of acrylamide, 50 to 100 parts of starch, 20 to 50 parts of attapulgite, 20 to 40 parts of porous inorganic matter, 30 to 60 parts of clay, 0.5 to 2 parts of microorganism microbial inoculum, 100 to 150 parts of acid liquid, 2 to 4 parts of initiator, 0.5 to 1 part of crosslinking agent, 1 to 5 parts of urea and 0.03 to 1 portion of yeast. The compound soil conditioner reserves the advantage of water retention; at the same time, because equivalent organic materials, the porous inorganic matter, the clay and the like are added to the soil conditioner, the soil conditioner has the functions of modifying soil structure, enhancing the organic matter of soil and improving the pH value of the soil; and because humic acid is added, the soil conditioner has the function of a urease inhibitor to a certain degree and enhances the utilization efficiency of a fertilizer N applied together with the soil conditioner.

Description

technical field [0001] The invention relates to a soil improver with water-retaining effect, in particular to an organic composite water-retaining soil improver and its preparation. Background technique [0002] Drought is a worldwide problem faced by mankind. The world's arid and semi-arid areas account for 1 / 3 of the land area, covering more than 50 countries and regions in the world, and are very important land resources. About 40% of the arable land in the world has precipitation below 500 mm. Because of its arid and semi-arid climate, coupled with factors such as poor agricultural production management, excessive reclamation, and deforestation, the land desertification area has expanded, and the physical and chemical properties of the soil have deteriorated. Deterioration, nutrient balance imbalance, soil fertility decline, poor ability to resist natural disasters, and severe damage to the ecological environment have become ecologically fragile areas with deteriorating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05C9/00C05F11/08C05G3/80
Inventor 宇万太马强张璐周桦
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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