A kind of south red soil dry land nutrient expansion conditioner and preparation method thereof

A conditioner and soil nutrient technology, applied in the field of soil agricultural chemistry, can solve the problem of limited expansion effect of red soil nutrients, and achieve the effects of increasing soil porosity and the proportion of large aggregates, strong water absorption and water retention performance, and reducing soil bulk density.

Active Publication Date: 2018-05-01
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, CN101445730A discloses a soil conditioner for red and yellow soil, CN1304973A discloses a soil conditioner without deep tillage, and CN102911671A discloses a method for preparing a soil conditioner based on rice husk waste. Effective, but has limited effect on red soil nutrient expansion

Method used

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  • A kind of south red soil dry land nutrient expansion conditioner and preparation method thereof
  • A kind of south red soil dry land nutrient expansion conditioner and preparation method thereof
  • A kind of south red soil dry land nutrient expansion conditioner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Prepare Carbonized Chaff

[0032] Place the chaff in a carbonization furnace for high-temperature carbonization. The temperature is controlled at 500-600° C., and the carbonization takes about 12 hours. After the carbonization is completed, it is forced to ventilate and cooled to room temperature to obtain carbonized chaff.

[0033] Step 2: Material crushing

[0034] Taking the weight of the soil nutrient expansion conditioning agent as the weight percentage basis, take 30% of zeolite, 10% of coal cinder and 18% of carbonized chaff in the pulverizer to pulverize by weight;

[0035] Step 3: Material Mixing

[0036] Put the above pulverized material in the mixer, and add 12% of fly ash and 20% of weathered coal according to the weight ratio at the same time, and fully mix to obtain the mixed material;

[0037] Step 4: Granulation

[0038] The above-mentioned mixed material is granulated in a disc granulator, and 5% of bentonite is added at the same time, and 5%...

Embodiment 2

[0042] Step 1: Prepare Carbonized Chaff

[0043] Place the chaff in a carbonization furnace for high-temperature carbonization, the temperature is controlled at 500-600°C, and the carbonization takes about 8 hours. After the carbonization is completed, it is cooled to room temperature by forced ventilation to obtain carbonized chaff.

[0044] Step 2: Material crushing

[0045] Taking the weight of the soil nutrient expansion conditioner as the weight percentage basis, take 30% of zeolite, 10% of coal cinder and 27% of carbonized chaff in the pulverizer according to the proportioning by weight;

[0046]Step 3: Material Mixing

[0047] Put the pulverized material in the mixer, add 20% of weathered coal at the same time, and mix well to obtain the mixed material;

[0048] Step 4: Granulation

[0049] The above-mentioned mixed material is granulated in a disc granulator, and 8% of bentonite is added at the same time, and 5% of polyacrylamide is added after the masterbatch is fo...

Embodiment 3

[0053] Step 1: Prepare Carbonized Chaff

[0054] Place the chaff in a carbonization furnace for high-temperature carbonization. The temperature is controlled at 500-600° C., and the carbonization takes about 20 hours. After the carbonization is completed, it is forced to ventilate and cooled to room temperature to obtain carbonized chaff.

[0055] Step 2: Material crushing

[0056] Taking the weight of the soil nutrient expansion conditioner as the weight percentage basis, taking 35% of zeolite and 10% of coal cinder according to the weight ratio and pulverizing in the pulverizer;

[0057] Step 3: Material Mixing

[0058] Put the pulverized material above into a mixer, add 23% of weathered coal and 14% of fly ash at the same time, and fully mix to obtain a mixed material;

[0059] Step 4: Granulation

[0060] The above-mentioned mixed material is granulated in a disc granulator, and 10% of bentonite is added at the same time, and 8% of polyacrylamide is added after the mast...

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Abstract

The invention provides a preparing method of south red soil dry land nutrient dilatation conditioner. The conditioner is prepared from, by weight, 25-35% of raw material zeolite, 10-15% of coal cinder, 14-20% of carbonizational husks, 12-17% of coal ash, 17-23% of decomposed coal and 3-8% of polyacrylamide in a blending and pelleting mode. By means of the prepared conditioner, the adsorption capacity of soil to nutrients can be greatly increased, the adsorption ability of soil to nutrients can be enhanced, the physical structure of soil can be obviously improved, the soil acidiy can be adjusted, contradiction among soil water, air and nutrient substances is coordinated, and the conditioner can be widely applied to south red soil dry land and provide a good basis for the high and stable yield of crops.

Description

technical field [0001] The invention belongs to the field of soil agricultural chemistry, and in particular relates to a preparation method of a nutrient expansion conditioner for dryland red soil in southern China. Background technique [0002] Red soil is one of the main soil types in southern China, with zonal distribution. Affected by soil-forming parent material and soil-forming factors, generally the water and nutrient storage capacity is small, the cation exchange capacity is about 5cmol / kg, heavy acidity, leakage of water and fertilizer, relatively Barren, with low agricultural output. However, this type of soil is widely distributed, large in area, and rich in resources. Through the application of various agricultural technologies and products, it can be improved and fertilized, and it can become an important production base for subtropical economic crops, forest trees, and fruit trees, with great production potential. [0003] Due to the small water storage capaci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 冀建华刘秀梅侯红乾刘益仁冯兆滨王子君
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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