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Acid-proof, moisture-holding and superactive special fertilizer technology for forestry and additive

A chemical fertilizer and forestry technology, which is applied in the field of acid-resistant, water-retaining, powerful forestry-specific fertilizer technology and additives, can solve the problems of slow-release fertilizers not taking into account soil moisture and improving nutrient loss, and achieve enhanced soil water and fertilizer retention. The effect of increasing soil water content and protecting ecological security

Inactive Publication Date: 2013-12-25
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing slow-release fertilizers do not take into account the improvement of environmental problems such as soil moisture, nutrient loss, and soil acidification, and cannot meet the needs of contemporary forestry development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) By weight, mix 20 parts of attapulgite (100 mesh, colloidal grade), 10 parts of power plant straw ash (the mass ratio of silicon to carbon is 1:1), 1 part of sodium hexametaphosphate and 1 part of cysteine Amino acid was added to tap water to make a suspension with a concentration of 60g / L, and stirred at 100rpm for 30 minutes at 30°C;

[0026] (2) Take 1L of the suspension prepared in step (1), add 2g of acrylamide, 0.1g of N,N'-methylenebisacrylamide and 0.1g of hydrogen peroxide, stir at 100rpm at 30°C, and use gamma Radiation (5MeV, 20kGy) for 10 minutes, then dried at 40°C to constant weight, crushed, and passed through a 100-mesh sieve;

[0027] (3) Take 10 parts of the powder prepared in step (2) and 1 part of ammonium polyacrylate (200 mesh) and mix evenly, which is a powerful forestry fertilizer additive with water retention, fertilizer retention and acid soil improvement;

[0028] (4) Mix 1 part of additive with 3 parts of urea, 3 parts of monoammonium ph...

Embodiment 2

[0030] (1) By weight, 25 parts of attapulgite (300 mesh, colloidal grade), 15 parts of power plant straw ash (silicon-carbon ratio of 1:1), 1 part of sodium hexametaphosphate and 2 parts of cysteine The acid was added to tap water to make a suspension with a concentration of 80g / L, and stirred at 100rpm for 40 minutes at 35°C;

[0031](2) Take 1L of the suspension prepared in step (1), add 3g of acrylamide, 0.2g of N,N'-methylenebisacrylamide and 0.2g of hydrogen peroxide, stir at 100rpm at 25°C, and use gamma Radiation (3MeV, 5kGy) for 30 minutes, then dried at 50°C to constant weight, crushed, and passed through a 100-mesh sieve;

[0032] (3) Mix 12 parts of the powder prepared in step (2) with 2 parts of ammonium polyacrylate (200 mesh) and mix evenly, which is a powerful forestry fertilizer additive with water retention, fertilizer retention and acid soil improvement;

[0033] (4) Mix 1 part of additive and 9 parts of urea evenly, and extrude and granulate to obtain a pow...

Embodiment 3

[0035] (1) By weight, 25 parts of attapulgite (800 mesh, colloidal grade), 12 parts of power plant straw ash (silicon-carbon ratio of 1:2), 2 parts of sodium hexametaphosphate and 2 parts of cysteine The acid was added to tap water to make a suspension with a concentration of 100g / L, and stirred at 200rpm for 20 minutes at 40°C;

[0036] (2) Take 1L of the suspension in step (1), add 4g of acrylamide, 0.2g of N,N'-methylenebisacrylamide and 0.2g of hydrogen peroxide, stir at 200rpm at 35°C, and use gamma rays ( 1MeV, 50kGy) for 5 minutes, then dried at 60°C to constant weight, crushed, and passed through a 100-mesh sieve;

[0037] (3) Take 15 parts of the powder in step (2) and mix with 2 parts of ammonium polyacrylate (200 mesh) evenly, which is a powerful fertilizer additive for forestry with water retention, fertilizer retention and acid soil improvement; (4) 0.5 1 part additive and 9.5 parts urea are evenly mixed, and extruded and granulated to obtain a powerful fertilize...

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Abstract

The invention discloses an acid-proof, moisture-holding and superactive special fertilizer technology for forestry and an additive. The technology comprises the steps of mixing and adding attapulgite, straw ash of power plants, sodium hexametaphosphate and aminothiopropionic acid into tap water so as to prepare turbid liquid, adding acrylamide, N,N'-methylene bisacrylamide and hydrogen peroxide into the turbid liquid, carrying out gamma ray irradiation on the obtained mixture, drying the obtained product until the weight of the obtained product is constant, crushing and sieving the obtained product, mixing the obtained powder with ammonium polyacrylate so as to obtain a special fertilizer additive for forestry, adding the additive into a common fertilizer, and granulating the obtained mixture so as to obtain a special fertilizer for forestry. The fertilizer has the advantages of water holding, fertilizer maintenance and capability of improving the acidic soil; meanwhile, through taking straw ash of power plants as a raw material, the straw ash of power plants is changed into things of value, thereby saving the cost, and further facilitating the large-scale application of the technology and the additive in forestry.

Description

technical field [0001] The present invention relates to a special fertilizer technology and auxiliary agent suitable for acidic soil, water retention and powerful forestry, in particular to a special chemical fertilizer technology and auxiliary agent for acid resistance, water retention and strong forestry. Background technique [0002] The results of the seventh national forest resources inventory (2004-2008) show that the national forest area is 195.4522 million hectares, the total stock of living trees is 14.913 billion cubic meters, the forest stock is 13.721 billion cubic meters, and the forest coverage rate is 20.36%, compared with 8.6 in 1949. % net increase of 11.76 percentage points. my country's forest area ranks fifth in the world after Russia, Brazil, Canada, and the United States; its forest stock ranks sixth in the world after Brazil, Russia, the United States, Canada, and the Democratic Republic of the Congo. my country's planted forest area is 61.6884 millio...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 蔡冬清吴正岩余增亮吴丽芳张桂龙
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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