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Method for improving farmland soil environment capacity

An environmental capacity and soil technology, applied in the field of improving farmland soil environmental capacity, can solve problems such as deterioration of soil physical and chemical properties, reduction of soil use value, and impact on crop growth, etc., to promote soil microbial activity, reduce toxicity, and enhance disease resistance. Effect

Active Publication Date: 2014-05-28
JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, it will deteriorate the physical and chemical properties of the soil, reduce its fertility, and affect the growth of crops; on the other hand, some toxic substances will be absorbed by crops and remain in the stems and particles of crops, which will affect the health of humans and animals through the food chain, thus making the soil useless. reduced or lost value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] One mu of acidic farmland in Xinbei District, Changzhou, Jiangsu was randomly selected as the experimental site, and the soil environmental capacity was improved.

[0038] 1) Use deep plowing machinery to plow the farmland soil to a depth of 25cm;

[0039] 2) Add 10kg of green manure, 20kg of manure, 20kg of manure, 30kg of humic acid, 20kg of cellulose, 20kg of bentonite, 10kg of zeolite, 20kg of compound amino acid, 10kg of hydroxyapatite, 10kg of diatomaceous earth, 10kg of lime, powder Coal ash 15kg, control soil bulk density 0.9g / cm 3 , pH value 6.5, cation exchange capacity 30cmol / 100g, organic matter 60g / kg, total water-soluble salt 3g / kg;

[0040] 3) Use deep plowing machinery to plow the farmland soil again, and the plowing depth is 25cm;

[0041] 4) Repeat the above steps once a year in spring and autumn for 3 years.

[0042] The treated farmland soil has its environmental capacity increased by 50%, which can effectively resist the impact of pollu...

Embodiment 2

[0044] One mu of alkaline farmland in Xinbei District, Changzhou, Jiangsu was randomly selected as the experimental site, and the soil environmental capacity was improved.

[0045] 1) Use deep plowing machinery to plow the farmland soil to a depth of 50cm;

[0046] 2) Add 30kg of manure, 40kg of compost, 30kg of manure, 100kg of cellulose, 40kg of zeolite, 40kg of montmorillonite, 50kg of compound amino acid, 30kg of sepiolite, 20kg of attapulgite, 10kg of ferrous sulfate, and 3kg of sulfur powder into the farmland soil , acid weathered coal 5kg, control soil bulk density 1.1g / cm 3 , pH value 7.5, cation exchange capacity 50cmol / 100g, organic matter 50g / kg, total water-soluble salt 2g / kg;

[0047] 3) Use deep plowing machinery to plow the farmland soil again, and the plowing depth is 50cm;

[0048] 4) Repeat the above steps once a year in spring and autumn for 3 years.

[0049] The treated farmland soil has its environmental capacity increased by 100%, which...

Embodiment 3

[0051] One mu of alkaline farmland in Xinbei District, Changzhou, Jiangsu was randomly selected as the experimental site, and the soil environmental capacity was improved.

[0052] 1) Use deep plowing machinery to plow the farmland soil to a depth of 35cm;

[0053] 2) Add river mud 30kg, pond mud 20kg, organic fertilizer 20kg, cellulose 70kg, bentonite 30kg, zeolite 20kg, compound amino acid 40kg, sepiolite 20kg, hydroxyapatite 15kg, ferrous sulfate 5kg, phosphoric acid Diammonium 5kg, superphosphate 3kg, control soil bulk density 1g / cm 3 , pH value 7, cation exchange capacity 60cmol / 100g, organic matter 50g / kg, total water-soluble salt 3g / kg;

[0054] 3) Use deep plowing machinery to plow the farmland soil again, and the plowing depth is 35cm;

[0055] 4) Repeat the above steps once a year in spring and autumn for 3 years.

[0056] After treatment, the environmental capacity of farmland soil has increased by 80%, which can effectively resist the impact of p...

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Abstract

The invention mainly provides a method for improving the farmland soil environment capacity by combining with the current severe situation of the farmland soil. The method is used for enhancing the self cleaning capacity of the farmland soil, lowering harm on crops by various pollutants (organic matters and heavy metal) in the farmland soil and lowering the adsorption on soil harmful substance by the crops so as to lower the index to the human body health risk by the soil harmful substance. The method is suitable for farmland soils around pollution sources, such as various chemical plants, insecticide factories, electroplate factories and chemical fertilizer plants to prevent various pollutants from invading, the yield of the crop is improved, and the quality of the crop is improved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method for improving the environmental capacity of farmland soil. [0002] Background technique [0003] At present, people pay more and more attention to urban environmental protection and environmental pollution is gradually being controlled, while rural environmental problems are becoming more and more prominent. Various pollutions and ecology are intertwined, affecting the lives of rural population and threatening them. health, while bringing serious pollution to rural farmland. Farmland pollution caused by agricultural activities refers to the addition of certain harmful substances or high levels of certain inherent substances in the soil during the process of fertilization and irrigation by the agricultural sector, and the pollution load exceeds the bearing capacity of the soil. On the one hand, it will deteriorate the physical and chemical properties of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00B09C1/00
Inventor 李海建胡波李玲
Owner JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION
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