Fertilizer control agent and application method thereof

An application method and technology of active calcium silicate, applied in the application, potash fertilizer, inorganic fertilizer and other directions, can solve the problems of soil composition imbalance, fertilizer nitrogen loss, economic loss, etc., to reduce the use of fertilizers, improve food quality and efficiency , the effect of solving adverse consequences

Pending Publication Date: 2019-01-18
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional fertilizers are easy to lose into the air and water through volatilization, runoff, infiltration, etc., which not only leads to low fertilizer utilization, but also causes a series of problems such as smog, acid rain, water eutrophication, and soil pollution.
At present, a large amount of fertilizer nitrogen is lost every year in the country, causing economic losses. On the other hand, for the mass production of crops, the use of a large amount of fertilizer will inevitably lead to imbalance of soil composition, land compaction and affect the quality of crops.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1. Grind active calcium silicate, clay, gypsum powder, volcanic rock ash, biochar, straw ash, etc. respectively, and pass through a 200-mesh sieve to make the raw materials required by the present invention;

[0012] 2. Weigh 200 parts of active calcium silicate, 200 parts of clay, 20 parts of gypsum powder, 10 parts of volcanic rock ash, 20 parts of biochar, 20 parts of straw ash and 10 parts of natural modified polymer flocculant according to the following weight ratio, Mix the raw materials evenly;

[0013] 3. Grind the uniformly mixed raw materials through a sieve of more than 200 mesh to obtain the natural low-cost soil conservation and fertilizer control agent (catalyst for soil conservation and fertilizer control) of the present invention.

[0014] 4. Mix the prepared soil conservation and fertilizer control agent (soil conservation and fertilizer control catalyst) with nitrogen fertilizer at 5wt% to obtain loss-controlling and synergistic nitrogen fertilizer.

Embodiment 2

[0016] 1. Grind activated calcium silicate, clay, gypsum powder, volcanic rock ash, biochar, straw, etc. respectively, and pass through a 200-mesh sieve to make the raw materials required by the present invention;

[0017] 2. Weigh 500 parts of active calcium silicate, 500 parts of clay, 20 parts of gypsum powder, 10 parts of volcanic rock ash, 20 parts of biochar, 50 parts of straw ash and 10 parts of natural modified polymer flocculant according to the following weight ratio. Mix the raw materials evenly;

[0018] 3. Grind the uniformly mixed raw materials through a sieve of more than 200 mesh to obtain the natural low-cost soil conservation and fertilizer control agent (catalyst for soil conservation and fertilizer control) of the present invention.

[0019] 4. Mix the prepared soil conservation and fertilizer control agent (soil conservation and fertilizer control catalyst) with nitrogen fertilizer at 30 wt% to obtain loss-controlling and synergistic nitrogen fertilizer. ...

Embodiment 3

[0021] 1. Grind active calcium silicate, clay, gypsum powder, volcanic rock ash, biochar, straw, etc., and pass through a 200-mesh sieve to make the raw materials required by the present invention;

[0022] 2. Weigh 200 parts of active calcium silicate, 500 parts of clay, 50 parts of gypsum powder, 10 parts of volcanic rock ash, 20 parts of biochar, 100 parts of straw ash and 10 parts of natural modified polymer flocculant according to the following weight ratio. Mix the raw materials evenly;

[0023] 3. Grind the uniformly mixed raw materials through a 500-mesh sieve to obtain the natural low-cost soil conservation and fertilizer control agent (catalyst for soil conservation and fertilizer control) of the present invention.

[0024] 4. The prepared natural low-cost soil conservation and fertilizer control agent (soil conservation and fertilizer control catalyst) is mixed with nitrogen fertilizer in an amount of 10wt%, to obtain and control loss and synergistic nitrogen fertil...

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PUM

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Abstract

The invention belongs to the technical field of fertilizers and soil protection, and discloses a fertilizer control agent which considers triple effects of soil protection, food quality and effect enhancement and fertilizer loss control, and an application method thereof. The fertilizer control agent is mainly prepared from active calcium silicate, clay, gypsum powder, volcanic rock ash, biochar,straw ash and a micro amount of natural modified high polymer flocculant, can be combined with different kinds of fertilizers to form catalytic fertilizers, can form a fertilizer effect improving fertilizer catalytic space structure when being mixed with water, and can avoid excessive fertilizer use so as to protect the soil. The fertilizer control agent comprises the following components in partsby weight: 200-500 parts of active calcium silicate, 200-500 parts of clay, 20-100 parts of gypsum powder, 10-50 parts of volcanic ash, 20-100 parts of biochar, 20-100 parts of straw ash and 10-25 parts of a natural modified high polymer flocculant. The components are thoroughly mixed and grinded to more than 50 to 500 meshes; and the prepared natural soil-protection fertilizer control agent is suitable for various fertilizers and crops, and is capable of improving the fertilizer utilization efficiency, improving the crop quality and realizing the soil protection effect.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a fertilizer control agent which takes into account the triple functions of soil protection, grain quality and efficiency, and fertilizer loss control and its application method. Background technique [0002] Traditional fertilizers are easy to lose into the air and water bodies through volatilization, runoff, infiltration, etc., which not only leads to low fertilizer utilization efficiency, but also causes a series of problems such as smog, acid rain, water eutrophication, and soil pollution. At present, a large amount of fertilizer nitrogen is lost every year in the country, causing economic losses. On the other hand, for the mass production of crops, the use of a large amount of fertilizer will inevitably cause soil composition imbalance, land compaction and affect the quality of crops. Therefore, how to improve fertilizer efficiency and reduce fertilizer usage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01G22/22A01G17/02
CPCA01G17/02A01G22/22C05D1/00C05G3/00C05D3/00C05D9/00
Inventor 丁克俭宋志民余宇李佩高文瑜
Owner BEIJING JIAOTONG UNIV
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