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Efficient soil repairing fertilizer

A soil remediation and fertilizer technology, applied in the directions of organic fertilizers, inorganic fertilizers, excretion fertilizers, etc., can solve the problems of difficult to quickly remediate soil pollution, slow growth of super-accumulator plants, and poor compound pollution effect, and achieve high yield and removal. Heavy metals, the effect of keeping soil texture loose and surface loose

Inactive Publication Date: 2017-06-23
ANHUI LIUGUO CHEM CO LTD
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Problems solved by technology

The control of soil pollution is mainly through engineering restoration methods and phytoremediation methods, of which engineering restoration methods mainly include soil improvement methods, electric restoration, soil leaching and heat treatment methods, etc. Engineering treatment measures are usually suitable for small polluted areas and serious pollutants. And the effect of the soil that is easy to spread is more obvious, which can fundamentally improve the soil, but the cost of treatment is high, and it is easy to form secondary pollution, and may damage the soil structure, which may easily lead to a decline in soil fertility
Phytoremediation technology is usually low-cost and can improve soil organic matter content and soil fertility, but plants have limited tolerance to heavy metal pollutants and are only suitable for moderately polluted soil remediation. At the same time, a plant can usually only remediate a certain heavy metal pollution Soil, and it is possible to activate other heavy metals in the soil, the effect on the compound pollution of various metals and organic matter is not good, the growth of hyperaccumulator plants is slow, and the restoration period is usually long, which is difficult to meet the requirements of rapid restoration of soil pollution; after research, Improving soil heavy metal pollution through the application of fertilizers is a new treatment method that is low-cost, controllable, and environmentally friendly. Therefore, it is necessary to develop a new low-cost, environmentally friendly, and efficient solution to soil pollution. Farmland fertilizers can not only increase crop production, but also effectively repair the pollution caused by heavy metals to the soil and reduce their content in the soil. It is of great significance and urgency to my country's agricultural development and fertilizer fields

Method used

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  • Efficient soil repairing fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-efficiency soil repair fertilizer, which is composed of the following raw materials in parts by weight: urea 50kg, sodium nitrate 40kg, urea phosphate 40kg, phosphate rock powder 25kg, potassium sulfate 35kg, potassium chloride 25kg, red mud powder 15kg, medical stone 8kg, diatomite 10kg, clay 15kg, growth regulator 25kg, modified kaolin 15kg, modified edible fungus residue 30kg, plant treatment agent 22kg, modified corn cob 18kg.

[0029] The red mud powder is obtained by grinding the Bayer red mud through an 80-mesh sieve, and the main component of the Bayer red mud is: SiO 2 10-20%, CaO 2-8%, Al 2 o 3 10-20%, Fe 2 o 3 30-50%, Na 2 O is 2 to 10%, TiO 2 0-10%; pH of red mud is 10.29-11.83.

[0030] The growth regulator is mixed with biogas residue, cow dung and traditional Chinese medicine residue powder at a mass ratio of 1:0.35:0.65, dried, crushed, passed through a 20-mesh sieve, and soaked in 1mol / L sodium hydroxide for 35 minutes. , add oxalic acid, ...

Embodiment 2

[0043] A high-efficiency soil repair fertilizer, which is composed of the following raw materials in parts by weight: urea 60kg, sodium nitrate 50kg, urea phosphate 50kg, phosphate rock powder 30kg, potassium sulfate 45kg, potassium chloride 30kg, red mud powder 22kg, medical stone 12kg, diatomite 15kg, clay 20kg, growth regulator 30kg, modified kaolin 20kg, modified edible fungus residue 40kg, plant treatment agent 28kg, modified corn cob 22kg.

[0044] The red mud powder is obtained by grinding the Bayer red mud through an 80-mesh sieve, and the main component of the Bayer red mud is: SiO 2 10-20%, CaO 2-8%, Al 2 o 3 10-20%, Fe 2 o 3 30-50%, Na 2 O is 2 to 10%, TiO 2 0-10%; pH of red mud is 10.29-11.83.

[0045] The growth regulator is mixed with biogas residue, cow dung and traditional Chinese medicine residue powder at a mass ratio of 1:0.4:0.75, dried, crushed, passed through a 40-mesh sieve, and soaked in 1.5mol / L sodium hydroxide for 40 minutes Finally, add oxali...

Embodiment 3

[0058] A high-efficiency soil repair fertilizer, which is composed of the following raw materials in parts by weight: urea 55kg, sodium nitrate 45kg, urea phosphate 45kg, phosphate rock powder 28kg, potassium sulfate 40kg, potassium chloride 28kg, red mud powder 18kg, medical stone 10kg, diatomite 13kg, clay 18kg, growth regulator 28kg, modified kaolin 18kg, modified edible fungus residue 35kg, plant treatment agent 24kg, modified corn cob 20kg.

[0059]The red mud powder is obtained by grinding the Bayer red mud through an 80-mesh sieve, and the main component of the Bayer red mud is: SiO 2 10-20%, CaO 2-8%, Al 2 o 3 10-20%, Fe 2 o 3 30-50%, Na 2 O is 2 to 10%, TiO 2 0-10%; pH of red mud is 10.29-11.83.

[0060] The growth regulator is mixed with biogas residue, cow dung and traditional Chinese medicine residue powder at a mass ratio of 1:0.38:0.7, dried, crushed, passed through a 30-mesh sieve, and soaked in 1.3mol / L sodium hydroxide for 38 minutes Finally, add oxalic...

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Abstract

The invention relates to the technical field of fertilizer, and in particular relates to efficient soil repairing fertilizer. The efficient soil repairing fertilizer is prepared from the following raw materials in parts by weight: 50 to 60 parts of urea, 40 to 50 parts of sodium nitrate, 40 to 50 parts of urea phosphate, 25 to 30 parts of ground phosphate rock, 35 to 45 parts of potassium sulfate, 25 to 30 parts of potassium chloride, 15 to 22 parts of red mud powder, 8 to 12 parts of medical stone, 10 to 15 parts of diatomite, 15 to 20 parts of clay, 25 to 30 parts of a growth regulator, 15 to 20 parts of modified kaolin, 30 to 40 parts of modified edible mushroom dreg, 22 to 28 parts of a plant treatment agent and 18 to 22 parts of modified corncob. The fertilizer has abundant nutrients and contains a lot of macro-elements and trace nutritional elements, which are necessary to crops; the content of total nutrients including nitrogen, phosphorus and potassium is more than or equal to 65.2 percent; the fertilizer contains various nutrients; the removal rate of cobalt in soil reaches 91.7 percent or more, the removal rate of nickel in the soil reaches 94.1 or more, and the removal rate of antimony in the soil reaches 96.9 percent or more; by taking rapes as an example, the yield can be increased by 9.3 percent to 12.6 percent, and double benefits of high yield and heavy metal removal are realized.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a high-efficiency soil repair fertilizer. Background technique [0002] With the rapid development of the economy and the advancement of industrial technology, the adverse impacts of industrial and agricultural production on the environment have been increasing. Due to the continuous accumulation and dumping of solid waste on the soil surface, harmful waste water has continuously penetrated into the soil, harmful gases and dust in the atmosphere It also continues to fall into the soil with rainwater, causing soil pollution. Among them, soil heavy metal pollution has become a prominent environmental problem that cannot be ignored. Heavy metal pollution in farmland soil is extremely harmful. Heavy metal pollution in soil will not only lead to crop yield reduction and quality degradation, but also enter the human body through the soil-plant system and food chain. , endangering ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B5/00C05G3/00C05G3/80C05B15/00C05C5/02C05C9/00C05D1/02C05D9/00C05D9/02C05F3/00C05F5/00C05F9/04C05F11/00
Inventor 沈浩曾英雷云周登风刘荣罗咏梅路坊海
Owner ANHUI LIUGUO CHEM CO LTD
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