Method for improving acid soil

An acid soil and soil technology, applied in the fields of land preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as environmental damage, spread of diseases and insect pests, waste of resources, etc., and achieve the effect of lasting fertilizer efficiency, promoting crop growth, and improving fertility.

Inactive Publication Date: 2016-11-16
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the edible fungus industry in recent years, a large amount of edible fungus waste is produced in the edible fungi producing areas every year. If it is not handled properly, it will not only cause a serious waste of resources, but also bring great harm to the environment and cause the spread of pests and diseases.

Method used

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  • Method for improving acid soil
  • Method for improving acid soil
  • Method for improving acid soil

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Experimental program
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Embodiment 1

[0038] Such as figure 1 As shown, the method for improving acidic soil in the present embodiment may further comprise the steps:

[0039] Step 1: Using agricultural and forestry residues to prepare biochar and fine-grained mushroom dregs.

[0040] Wherein, the utilization of agricultural and forestry residues to prepare biochar is realized by the following methods:

[0041] Collect agricultural and forestry residues from different sources, cut the agricultural and forestry residues into 0.5-3cm segments, wash them with water and hydrochloric acid, and dry them at a constant temperature of 80°C;

[0042] Put the above-mentioned agricultural and forestry residues into the filling box of the carbonization furnace, seal anaerobic and pass nitrogen gas for 30 minutes to achieve anaerobic, and heat to 300°C-700°C at a heating rate of 5°C-10°C / min Under certain conditions, keep a constant temperature and pyrolyze for 5 to 6 hours;

[0043] Cool the carbonized product to room tempe...

Embodiment 2

[0051] The method for improving acidic soil in this embodiment is to add the biochar obtained in step 1 to acidic soil after further processing on the basis of embodiment 1.

[0052] The biochar obtained in step 1 also includes the step of carrying out activation treatment:

[0053] Mix the obtained biochar with an activator, raise the temperature to the activation temperature in an inert atmosphere for activation treatment, then cool it to room temperature, wash the product with dilute hydrochloric acid, wash it with water until it is neutral, and then dry it to obtain the biochar used in soil. Biochar;

[0054] Wherein, the activator is at least one of potassium carbonate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium acetate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, and ammonium acetate.

Embodiment 3

[0056] The method for improving acidic soil in this embodiment is to further process the biochar obtained in step 1 on the basis of embodiment 1 or embodiment 2 and then add it to the acidic soil.

[0057] The biochar obtained in step 1 also includes the step of adsorbing sodium metasilicate on the surface of the obtained biochar before being added to the soil:

[0058] Add the obtained biochar into water and mix well, then add powdered sodium metasilicate and stir again, dry the mixed mixture until the water content is 20%, and finally obtain the biochar used in the soil.

[0059] Microbial bacteria are also added in the soil mixture in step 2 described in the above embodiments, and the mass percentage of the microbial bacteria is 0.01~0.05, and the microbial bacteria are the mixture of photosynthetic bacteria, Trichoderma korningii, and Bacillus subtilis. The mass ratio of photosynthetic bacteria, Trichoderma korningii and Bacillus subtilis is 1:1:2.

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Abstract

The invention discloses a method for improving acid soil, and mainly aims to overcome the problems that the fertility of conventional acid soil is degraded and the acid soil is relatively high in acidity. The method for improving the acid soil comprise the following implementation modes: preparing biomass charcoal and mushroom residues of fine particle sizes from agriculture and forestry wastes; sufficiently and uniformly mixing the prepared biomass charcoal and mushroom residues with acid soil so as to obtain a soil mixture; performing biochemical culture on the soil mixture. According to the method for improving the acid soil, a soil improvement substance is prepared from the agriculture and forestry wastes, and with the combination of an edible mushroom production residue product, the properties of the acid soil can be improved; the soil improvement substance is simple in preparation process, simple to use, low in cost and remarkable in effect, has advantages of environmental-friendliness, low carbon, resource recycling and the like, provides a novel way for acid soil improvement, and has good social and economic benefits and popularization application values.

Description

technical field [0001] The invention relates to a method for improving acidic soil. Background technique [0002] According to the data of the "China Cultivated Land Geochemical Survey Report" released by the Ministry of Land and Resources in 2015, the organic matter content of cultivated land in most parts of my country has declined, and soil acidification and alkalization have intensified. Especially in the south of my country, with the application of a large amount of pesticides and nitrogenous fertilizers, the area and degree of soil acidification are gradually becoming severe. Therefore, finding and applying suitable amendments to neutralize soil acidity, improve soil fertility, and restore acidic soil productivity have dual meanings for the sustainable development of agriculture and the protection of the ecological environment. [0003] my country is a traditional agricultural country. According to statistics, China's agriculture can produce more than 800 million tons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04A01B79/02C09K17/04C09K101/00C05G3/80
CPCA01B79/02C05D9/00C05G3/80C09K17/04C09K2101/00C05F5/00
Inventor 李明项萌王浩詹茂华程寒飞
Owner HUATIAN ENG & TECH CORP MCC
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