Improvement method of anti-acid field

A rice and organic fertilizer technology, applied in land preparation methods, agriculture, application, etc., can solve the problems of lack of system, integrity, pollution of surrounding ecosystems, and single improvement measures, so as to improve soil acid buffering performance and increase rice yield. , Improve the effect of root growth environment

Active Publication Date: 2019-09-24
广东农环检验检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engineering improvement measures of draining acid by ditches will cause the acid and heavy metal content in the drainage to exceed the safety threshold, further polluting the surrounding ecosystem; The method of chemical substances such as lime, alkali residue, and soil conditioner is costly, and long-term large-scale use will also cause secondary obstacles to soil compaction
Therefore, there are more or less shortcomings in the existing improvement methods of anti-acid fields, and there are certain limitations, and the improvement measures are single, and there is no scientific and effective comprehensive treatment method, which lacks systematization and integrity. , while lacking clear and specific standards

Method used

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  • Improvement method of anti-acid field

Examples

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Comparison scheme
Effect test

Embodiment 1

[0129] An improved method for anti-acid fields, comprising the following steps:

[0130] (a) Water management in acid-reflected fields: acid-reflected fields are in a state of flooding and restoration during the whole process of rice growth, and the acid-reflected fields are flooded 21 days before rice transplanting; seedlings are raised in shallow water for 7 days after transplanting to maintain the height of the water layer 1cm;

[0131] In the early stage of rice tillering, flood irrigation was used to keep the water layer height at 6 cm; after the tillering stage, intermittent irrigation was adopted to maintain the water layer at 1-10 cm, and flooding and water control were carried out alternately until 10 days before the rice was harvested, the irrigation was stopped and the rice fell naturally. Make the soil moisture content at 50% when harvesting; the intermittent flood irrigation method is: when the flood irrigation reaches the water layer 10cm above the topsoil, stop ...

Embodiment 2

[0137] An improved method for anti-acid fields, comprising the following steps:

[0138] (a) Water management in acid-reflected fields: acid-reflected fields are in a state of flooding and restoration during the whole process of rice growth, and the acid-reflected fields are flooded 21 days before rice transplanting; seedlings are raised in shallow water for 7 days after transplanting to maintain the height of the water layer 1.5cm;

[0139] In the early stage of rice tillering, water flooding irrigation was used to maintain a water layer height of 8 cm; after the tillering stage, an intermittent irrigation method was used to maintain a water layer of 1-8 cm, alternately flooding and controlling water, and stopped irrigation until 10 days before the rice was harvested. Make the soil moisture content at 55% when harvesting; wherein the intermittent flood irrigation method is: when the flood irrigation reaches the water layer 8cm above the topsoil, stop irrigation, and when the ...

Embodiment 3

[0145]An improved method for anti-acid fields, comprising the following steps:

[0146] (a) Screening of rice varieties: use rice acid resistance and yield level as screening indicators to screen early and late rice varieties suitable for acid-reverse fields; specifically, compare the acid resistance of the main rice varieties collected, and comprehensively investigate different rice varieties The performance of growth, tillering and yield in strongly acidic acid-reflected fields and improved acid-reflected fields, and the comprehensive investigation of the responses of different rice varieties to strongly acid-damaged acid-reflected fields and improved acid-reflected fields;

[0147] (b) Water management in acid-reflected fields: acid-reflected fields are in a state of flooding and restoration during the whole process of rice growth, and the acid-reflected fields are flooded 21 days before rice transplanting; seedlings are raised in shallow water for 7 days after transplanting...

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Abstract

The invention relates to the technical field of soil modification and repair, in particular to an anti-acid field modification method. The anti-acid field modification method comprises anti-acid field moisture management and anti-acid field organic modification. The anti-acid field moisture management adopts a mode that the anti-acid field is in the flooding returning state in the whole growth process of rice. The anti-acid field organic modification comprises the steps of organic fertilizer application increasing, straws returning to the field and winter planting and green manuring. According to the method, through the cultivation measure that the anti-acid field is flooded in the whole growth process of rice and organic matter is supplemented, the pH value and acid buffering performance of the soil plowing layer are improved; the effectiveness of the toxic metal ions is reduced; the bioavailability of the nutrient elements is increased; the soil structure and soil nutrient condition are modified; the growth environment of rice roots is improved, which is beneficial to the growth and nutrient adsorption of the rice roots; the acid poisoning effect of the anti-acid field is reduced; and the yield of the rice in low yield field is improved.

Description

technical field [0001] The invention relates to the technical field of soil improvement and restoration, in particular to an improvement method for anti-acid fields. Background technique [0002] There is a serious shortage of agricultural land resources in my country, and the production load of cultivated land is large. The per capita cultivated land is only 0.11 hectares, and it is still facing threats such as degradation, pollution, and desertification. How to protect the "red line of cultivated land" and ensure "food security" has become a major issue that needs to be solved urgently in our country. question. Improving the productivity of low-yield paddy soil through soil improvement and cultivation measures to adjust the account is one of the important measures to ensure national food security. [0003] Anti-acid field is one of the main low-yielding paddy soil types distributed in the coastal areas of South China, with a distribution area of ​​about 63,397 hectares in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
Inventor 黄巧义唐拴虎黄旭易琼李苹付弘婷张木张发宝黄建凤逄玉万
Owner 广东农环检验检测有限公司
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