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Nutritional water retention agent for planting cash crops in desertification region

A technology for economic crops and water-retaining agents, which can be used in applications, fertilizer mixtures, fertilization devices, etc., and can solve problems such as being unsuitable for repeated water absorption, low gel strength, and hardening.

Inactive Publication Date: 2012-12-19
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the water-retaining agents in the market are all acrylic polymers, such as sodium polyacrylate, polyacrylamide, etc. Although these materials can absorb a large amount of water, their gel strength is low, and they are not suitable for repeated water absorption. The disadvantage is that there will be compaction after the land is used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The first step: crush the corn stalks and pass through a 150-mesh sieve to obtain raw material I;

[0039] Step 2: Fresh cow dung is decomposed, air-dried, crushed and passed through a 150-mesh sieve, which is raw material II;

[0040] The third step: pulverize the palygorskite clay and pass through a 150-mesh sieve to obtain raw material III;

[0041] The fourth step: Potassium fertilizer (potassium chloride), nitrogen fertilizer (urea), phosphate fertilizer (common calcium superphosphate), and root powder (ABT No. 3) are respectively prepared into saturated solutions to obtain raw materials Ⅳ-1, Ⅳ-2, Ⅳ-3 , Ⅳ-4; wherein the mass ratio of potassium fertilizer, nitrogen fertilizer, phosphorus fertilizer and root powder is 1:1:1:1;

[0042] Step 5: Add potash fertilizer, nitrogen fertilizer, phosphate fertilizer, and raw material III equal to 10 times the total mass of rooting powder to IV-1, IV-2, IV-3, and IV-4, stir for 30-50 minutes, let stand, and dry , pulverized,...

Embodiment 2

[0050] The first step: crush the wheat straw and pass it through a 150-mesh sieve to obtain raw material I;

[0051] Step 2: Decompose the fresh sheep manure, air-dry it, crush it and pass it through a 150-mesh sieve, which is the raw material II;

[0052] The third step: crush the loess and pass through a 150-mesh sieve to obtain raw material III;

[0053] The fourth step: Potassium fertilizer (potassium sulfate), nitrogen fertilizer (ammonium bicarbonate), phosphate fertilizer (common calcium superphosphate), and root powder (ABT No.4) are prepared into saturated solutions respectively, and raw materials Ⅳ-1, Ⅳ-2, Ⅳ- 3. Ⅳ-4; the mass ratio of potassium fertilizer, nitrogen fertilizer, phosphorus fertilizer and root powder is 10:7:5:1;

[0054] Step 5: Add raw material III, which is 15 times the total mass of potassium fertilizer, nitrogen fertilizer, phosphate fertilizer, and root powder, to raw materials IV-1, IV-2, IV-3, and IV-4 on average, stir for 30-50 minutes respect...

Embodiment 3

[0062] The first step: crush the potato stalks and pass through a 150-mesh sieve to obtain raw material I;

[0063] Step 2: Fresh chicken manure is decomposed, air-dried, crushed and passed through a 150-mesh sieve, which is raw material II;

[0064] The third step: crush the white clay and pass through a 150-mesh sieve to obtain raw material III;

[0065] Step 4: Potassium fertilizer (potassium dihydrogen phosphate), nitrogen fertilizer (ammonium chloride), phosphate fertilizer (double superphosphate), and rooting powder (ABT No. 5) are respectively prepared into saturated solutions, which are raw materials Ⅳ-1, Ⅳ-2, Ⅳ-3, Ⅳ-4; Among them, the mass ratio of potassium fertilizer, nitrogen fertilizer, phosphorus fertilizer and root powder is 10:1:5:1;

[0066] Step 5: Add raw material III, which is 20 times the total mass of potassium fertilizer, nitrogen fertilizer, phosphate fertilizer, and root powder, to raw materials IV-1, IV-2, IV-3, and IV-4 on average, stir for 30-50 mi...

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Abstract

The invention provides a nutritional water retention agent for planting cash crops in a desertification region, which is prepared from plant straws, decomposed cow manure, sheep manure or chicken manure, paligorskite clay, loess, argil, laterite or black soil, a potassium fertilizer, a nitrogen fertilizer, a phosphorus fertilizer, rooting powder and a propenyl water retention agent. The prepared nutritional water retention agent has favorable water absorptivity, water retention property and gel strength, thus being suitable for the use for planting shinyleaf yellowhorns, walnuts, Chinese dates and other economic forests in a desertification region of which the annual rainfall is less than 150mm, and being also suitable for the use for planting zhonghua gaiguo fruits and other cash crops in a desertification region of which the annual rainfall is 150-300mm.

Description

technical field [0001] The invention belongs to the technical field of water and soil conservation, and relates to a nutritional water-retaining agent for planting, in particular to a nutritional water-retaining agent for planting economic crops in desertification areas. Background technique [0002] The form of desertified land in my country is very serious. According to the national desert, Gobi and sandy land census and desertification survey results, the desertified land area in China is 2.622 million square kilometers, accounting for 27.4% of the country's land area, and nearly 400 million people are affected by desertification. The desertification of the land not only leads to the deterioration of the local living environment, but also seriously reduces the income of the local residents. According to statistics, the direct economic loss caused by desertification in China is about 54.1 billion RMB. [0003] Planting cash crops is the best choice to restore the desert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 雷自强崇雅丽魏博王小亮罗鑫圣杨翠玲张哲马国富
Owner NORTHWEST NORMAL UNIVERSITY
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