Modifier for mildly alkalized soil and processing method thereof

A technology of soil improver and improver, applied in fertilizer mixture, fertilization device, application, etc., can solve the problems of excessive heavy metals and harmful trace elements, high cost of soil improvement for farmers, and unsatisfactory results, so as to overcome the imbalance of nutrient elements , Improve soil fertility and reduce pH value

Active Publication Date: 2013-04-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the particle size of the modifier after crushing is large, it is not conducive to the ion exchange reaction, and the improvement effect is poor; if the particle size of the modifier is small after crushing, it will consume a lot of energy, making the cost of soil improvement too high for farmers to bear
Chinese patent application CN101624523A discloses "a saline-alkali improver", which is prepared by mixing aluminum sulfate, ferrous ammonium sulfate and magnesium sulfate according to different weight ratios. A large amount of chem...

Method used

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  • Modifier for mildly alkalized soil and processing method thereof
  • Modifier for mildly alkalized soil and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 1. Improver: 80g of desulfurized gypsum, 10g of straw, 5g of biomass coke, 5g of weathered coal, 0.05g of urea, and 0.01g of microbial fertilizer.

[0057] 2. Processing method:

[0058] (1) Stalks and microbial fertilizers are pulverized with a pulverizer respectively, and passed through a 60-mesh sieve;

[0059] (2) Add the crushed straw, microbial fertilizer and other raw materials mentioned above to a mixer and mix them evenly, and then add them to a disc granulator for granulation to obtain a granular slightly alkalized soil conditioner.

[0060] 3. Improvement process (application of soil conditioner):

[0061] (1) The improved land shall be rough leveled first to remove the obvious concave-convex areas on the land;

[0062] (2) Carry out laser leveling, so that the slope of the farming block is 0.05%;

[0063] (3) above-mentioned improver is mixed and applied to the soil surface layer (the depth of application is 15cm of plowing layer depth), and the amount pe...

Embodiment 2

[0067] 1. Improver: 70g desulfurized gypsum, 5g straw, 10g biomass coke, 10g weathered coal, 0.1g urea, 0.05g microbial fertilizer.

[0068] 2. Processing method:

[0069] (1) Stalks and microbial fertilizers are pulverized with a pulverizer respectively, and passed through a 30-mesh sieve;

[0070] (2) Add the crushed straw, microbial fertilizer and other raw materials mentioned above to a mixer and mix them evenly, and then add them to a disc granulator for granulation to obtain a granular slightly alkalized soil conditioner.

[0071] 3. Improvement process (application of soil conditioner):

[0072] (1) The improved land shall be rough leveled first to remove the obvious concave-convex areas on the land;

[0073] (2) Carry out laser leveling, so that the slope of the farming block is 0.05%;

[0074] (3) above-mentioned improver mixes uniformly and is applied to soil surface layer and is applied to the depth of plowing layer depth of 20cm), and its amount per unit area is...

Embodiment 3

[0078] 1. Improver: 75g of desulfurized gypsum, 8g of straw, 8g of biomass coke, 8.5g of weathered coal, 0.08g of urea, and 0.03g of microbial fertilizer.

[0079] 2. Processing method:

[0080] (1) Stalks and microbial fertilizers are pulverized with a pulverizer respectively, and passed through a 40-mesh sieve;

[0081] (2) Add the crushed straw, microbial fertilizer and other raw materials mentioned above to a mixer and mix them evenly, and then add them to a disc granulator for granulation to obtain a granular slightly alkalized soil conditioner.

[0082] 3. Improvement process (application of soil conditioner):

[0083] (1) The improved land shall be rough leveled first to remove the obvious concave-convex areas on the land;

[0084] (2) Carry out laser leveling, so that the slope of the farming block is 0.05%;

[0085] (3) above-mentioned improver is mixed and applied to the soil surface (the depth of application is 18cm of plowed layer depth), and the amount per unit...

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Abstract

The invention relates to a modifier for mildly alkalized soil and a processing method thereof. The modifier for mildly alkalized soil comprises the following raw materials in parts by weight: 70-80 parts of desulfurized waste, 5-10 parts of inorganic accelerator and 10-20 parts of organic accelerator. According to the modifier for mildly alkalized soil, exchangeable sodium on soil colloid is replaced by calcium ions in the desulfurized waste, thereby reducing the alkalization degree; because of the fine pore structure and physical property of the organic accelerator, the physical behavior of the soil and the crumb structure of the soil are improved, the pH value of the soil is reduced, and the fertility of the soil is increased; the inorganic accelerator can also improve the crumb structure of the soil; and an inorganic fertilizer and an organic fertilizer are added to further increase the fertility of the soil and provide nutrient contents for the growth of plants. In a word, the invention can effectively avoid the nutrient element unbalance in the soil, improve the productivity of the soil, loosen the soil, enhance the fertilizer efficiency and thoroughly control the soil salinization phenomenon step by step.

Description

technical field [0001] The invention relates to a chemical reagent used on soil, in particular to a mild alkalized soil improver and a processing method thereof, belonging to the field of soil improvement. Background technique [0002] Domestic soil improvement, especially the methods and technologies of saline-alkali land improvement can be roughly summarized as follows: (1) Physical improvement: leveling the land, deep plowing and sunning, loosening the soil in time, raising the terrain, and micro-area soil improvement; (2) Water conservancy improvement: irrigation (3) chemical improvement: application of gypsum, phosphogypsum, superphosphate, humic acid, peat, vinegar residue, etc.; (4) biological improvement: planting rice , planting salt-tolerant plants, such as tianjing, or using micro-bacterial fertilizers, etc. [0003] These improved technologies and methods include ancient technologies, such as leveling the land, deep plowing and drying, loosening the soil in time...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
Inventor 陈昌和刘嘉李彦王淑娟陈群赵博禚玉群
Owner TSINGHUA UNIV
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