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Special fertilizer for corn with water holding and soil improvement effects and preparation thereof

A corn-specific fertilizer and soil improvement technology, applied in the field of special fertilizers, can solve problems such as the decrease in the quantity and quality of aggregates, the decrease in soil organic matter content, the deterioration of soil physical properties, etc. The effect of water and fertilizer retention performance

Inactive Publication Date: 2011-06-15
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under continuous cropping of corn, especially under the condition of only paying attention to the use of chemical fertilizers, the content of organic matter in cultivated land decreased rapidly, the physical properties of soil deteriorated, the quantity and quality of aggregates decreased, and the soil aeration conditions were poor.

Method used

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  • Special fertilizer for corn with water holding and soil improvement effects and preparation thereof
  • Special fertilizer for corn with water holding and soil improvement effects and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 3 kg of wood bran, 30 kg of peanut cake, 9 kg of lignite, and 0.015 kg of composting starter, and after crushing, stack and ferment at room temperature for two weeks (or use fermentation equipment to ferment, keep the temperature at 45°C-60°C, and the humidity at 60%- 70%, 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 machine), become a dry product of about 35 kg (organic matter ≥ 70%), and carry out secondary crushing , through a 100-mesh sieve.

[0024] Soak 9 kg of attapulgite in 2.5 mol / L hydrochloric acid for 24 hours, bake at 120°C until constant weight, and crush it for later use. Add 24 kg of cornstarch to distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 9 kg of attapulgite, 35 kg of organic matter, 0.9 kg of initiator potassium persulfate, 60 kg of acrylamide, 0.25 kg of cross-linking agent polyethylene glycol diglycidyl ether and 300 L of water, heate...

Embodiment 2

[0028]Crush 50 grams of wood bran, 750 grams of bean cake, 175 grams of lignite, and 0.35 grams of compost starter, and stack them at room temperature for two weeks (or use fermentation equipment to ferment, keep the temperature at 45°C-60°C, and the humidity at 60%-70%) , the fermentation time can be shortened to 24-72 hours), and then dried in the air for three days (or dried by a drying mechanism), and become a dry product with about 800 grams, which is crushed twice and passed through a 100-mesh sieve.

[0029] Soak 400 grams of attapulgite in hydrochloric acid with a concentration of 2.8 mol / L for 24 hours, bake at 120°C until constant weight, and crush it for later use.

[0030] Add 700 grams of cornstarch into distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 400 grams of attapulgite, 800 grams of organic matter, 30 grams of initiator ammonium sulfate, 600 grams of acrylamide, 10 gram cross-linking agent polyethylene glycol diglycidyl ether and ...

Embodiment 3

[0034] Crush 25 kg of wood bran, 375 kg of bean cake, 90 kg of peat, and 0.2 kg of yeast, and stack them at room temperature for two weeks (or use fermentation equipment to ferment, keep the temperature at 45°C-60°C, humidity at 60%-70%, and ferment The time can be shortened to 24-72 hours), and then dried in the air for three days (or dried with a dryer), becoming a dry product of about 400 kilograms, which is pulverized for the second time and passed through a 100-mesh sieve.

[0035] Soak 200 kg of attapulgite in hydrochloric acid with a concentration of 2.5 mol / L for 24 hours, bake at 120°C to constant weight, and grind it for later use.

[0036] Add 370 kg of cornstarch into distilled water, gelatinize at 95°C for 30 minutes, cool down to 40°C, add 200 kg of attapulgite, 400 kg of organic matter, 15 kg of initiator ammonium sulfate, 300 kg of acrylamide, 5 Kilogram cross-linking agent polyethylene glycol diglycidyl ether and 3 cubic meters of water, raise the temperature ...

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Abstract

The invention relates to a special fertilizer for corn, in particular to a special fertilizer for corn with water holding and soil improvement effects and preparation thereof. The special fertilizer comprises the following components in part by weight: 100 to 200 parts of organic substance, 200 to 300 parts of compound fertilizer, 0.2 to 3 parts of active covering 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 substance, 30 to 60 parts of clay, 100 to 150 parts of acid liquid, 2 to 4 parts of initiator, 0.5 to 1 part of cross linker, and 0.03 to 0.1 part of compost leaven. The compound fertilizer mainly comprises the following components by weight based on effective content: 1 percent of nitrogen (N), 0.45 to 0.60 percent of phosphorus (P), 0.40 to 0.55 percent of potassium (K) and 0.10 to 0.25 percent of zinc (Zn); and hydroquinone and dicyandiamide are 2.0 to 3.0 percent of the consumption of N fertilizer. The special fertilizer for corn keeps certain advantage of a water holding agent; because proportional organic substance, porous inorganic substance, clay and the like are added, the special fertilizer plays a role in improving the structure, organic substances and pH value of the soil; because humic acid is added, the special fertilizer can play a role of urease inhibitor to certain degree; and by matching the urease inhibitor, the utilization efficiency of N in the compound fertilizer can be improved.

Description

technical field [0001] The invention relates to a special fertilizer for corn with water-retaining and soil-improving effects, which is a special fertilizer containing compound fertilizers suitable for corn planting, water-retaining substances and substances with soil structure improving effects. Background technique [0002] Drought and barrenness are the two major factors restricting agricultural development. About 40% of the cultivated land in the world has precipitation below 500mm. So that limited nutrients can not play a full role. Under such circumstances, excessive reclamation and grazing for the sake of living security have resulted in the expansion of land desertification, the deterioration of soil structure, the imbalance of nutrients, the rapid decrease of soil organic matter content, and the increasingly fragile ecological environment. [0003] Reasonable fertilization in dryland farmland can improve fertilizer use efficiency. If it is used together with water-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 马强宇万太张璐周桦
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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