Acidified soil conditioner

A technology of soil improver and bentonite, which is applied in the direction of soil conditioning materials, other chemical processes, chemical instruments and methods, etc., can solve the problems of strong leaching, affecting crop yield and quality, and loss of alkaline base, etc., to achieve increased Soil microbial activity, promoting sustainable agricultural development, and improving the effect of dietary fiber activity

Inactive Publication Date: 2019-05-21
PINGDINGSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Large and concentrated precipitation, strong leaching, and a large loss of alkaline bases such as calcium, magnesium, and potassium are the root causes of soil acidification
[0008] 2. The lack of traditional agricultural measures such as applying lime, burning manure, and applying organic fertilizers makes the imbalance of soil nutrients in cultivated land the main cause of soil acidification
[0009] 3. Long-term large-scale application of chemical fertilizers is an important cause of soil acidification, even long-term application of urea can also cause soil acidification
[0010] Soil acidification accelerates the increase of soil acidity, which will lead to a decrease in soil base saturation, a decrease in the availability of a large number of nutrients, a decrease in the ability of the soil to supply and maintain fertilizers, and a decrease in soil productivity, seriously affecting crop yields and quality, and cause pollution to water resources, has become a focus of common attention in the field of agricultural production and ecological environment protection at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 A preparation method of bamboo charcoal in acidified soil conditioner

[0030] A method for preparing bamboo charcoal in an acidified soil conditioner is as follows:

[0031] Take moso bamboo as the raw material, dry the moso bamboo in natural air, then pulverize and sieved through a 200 mesh sieve, and then put the bamboo chips in a heating furnace for carbonization, the temperature is 550℃, and the holding time is 3h; finally the carbonization The product was ball milled into powder in a ball mill, immersed in 2.8 mol / L sulfuric acid for 1 h, then added with deionized water and heated for 30 minutes with microwave, washed twice, and dried in an oven at 180° C. to obtain the bamboo charcoal.

Embodiment 2

[0032] Example 2 A preparation method of bamboo charcoal in acidified soil conditioner

[0033] A method for preparing bamboo charcoal in an acidified soil conditioner is as follows:

[0034] Take moso bamboo as the raw material, dry the moso bamboo naturally, pulverize and sieved through a 200-mesh sieve, and then place the bamboo chips in a heating furnace for carbonization, the temperature is 560℃, and the holding time is 4h; finally the carbonization The product was ball milled into powder in a ball mill, treated with 3 mol / L sulfuric acid for 1.5 h, then added with deionized water and heated for 35 minutes with microwave, washed repeatedly for 3 times, and dried in an oven at 180° C. to obtain the bamboo charcoal.

Embodiment 3

[0035] Example 3 A preparation method of bamboo charcoal in acidified soil conditioner

[0036] A method for preparing bamboo charcoal in an acidified soil conditioner is as follows:

[0037] Take moso bamboo as the raw material, dry the moso bamboo naturally, pulverize and sieved through a 200-mesh sieve, and then place the bamboo chips in a heating furnace for carbonization, the temperature is 570℃, and the holding time is 5h; finally the carbonization The product was ball-milled into powder in a ball mill, treated with 3.2 mol / L sulfuric acid for 2 hours, and then added with deionized water, heated and cleaned with microwave for 40 minutes, washed repeatedly 4 times, and dried in an oven at 180° C. to obtain the bamboo charcoal.

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PUM

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Abstract

The invention provides acidified soil conditioner. The acidified soil conditioner is prepared from the following components in parts by weight: 52-58 parts of bamboo carbon, 1-5 parts of a microbial agent, 2-4 parts of hydroxymethyl cellulose, 11-15 parts of bentonite, 10-14 parts of manure, 2-6 parts of polypotassium methacrylate, 1-5 parts of nanosilicon dioxide powder, 2-4 parts of a urease inhibitor, 3-5 parts of carbon calcium nitride, 2-4 parts of nano-zinc oxide, and 3-5 parts of alkali accessories. The invention provides the acidified soil conditioner which is safe and effective, has good improvement effect on the acidified soil, and cannot influence the soil after being applied for a long time. The soil conditioner is low in cost, non-hazardous, capable of promoting the agricultural sustainable development and suitable for popularizing and applying in large scale.

Description

Technical field [0001] The invention relates to the technical field of agricultural soil improvement, in particular to an acidified soil amendment. Background technique [0002] my country has a large population base and a small per capita arable land. There is a long-term pressure to ensure food security, and the intensity of soil utilization is much higher than other countries. With the rapid development of economy and society, soil degradation problems such as acidification, salinization, element imbalance, loss and pollution have become increasingly prominent, which severely restricts the development of land productivity. Soil acidification refers to the phenomenon that the increase of H+ concentration in the soil causes the decrease of soil pH under natural and artificial conditions. It is one of the important indicators of land productivity and an important form of soil degradation. [0003] Two types of soil acidity [0004] One is active acid: it is a direct reflection of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
Inventor 程世平宗玉霞姚鹏强赵小彦陈明辉
Owner PINGDINGSHAN UNIVERSITY
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