Comprehensive low-moisture soil drainage promoting device and implementation method

Abstract

The low-humidity soil comprehensive drainage device and implementation method of the present invention relate to the field of agricultural drainage devices and implementation methods. The device is composed of irrigation canals, drainage canals and drainage pipes. The pipe is U-shaped, the U-shaped open end is connected to the irrigation channel, and the U-shaped bottom end is connected to the drainage channel. The drainage pipe is located in the rice husk layer, and a covering soil layer is arranged above the rice husk layer, and there is a drainage channel in the covering soil layer; its implementation method It includes three steps of establishing irrigation and drainage channels, laying drainage and subsoiling tillage. The invention is suitable for low-humidity soil, which can make the soil in the process of alternating dry and wet, provide the aerobic environment needed for the growth of crops, improve the availability of soil nutrients, improve the vitality of the root system; reduce the SO in the soil 2 or H 2 The generation of toxic gases such as S prevents root poisoning; and the soil moisture content is suitable and the soil bearing capacity is good, which is conducive to mechanical harvesting and greatly improves production efficiency.

Description

technical field [0001] The invention relates to the field of agricultural drainage devices and implementation methods, in particular to a low-humidity soil comprehensive drainage device and implementation method. Background technique [0002] Low-humidity soil refers to the soil distributed in low-lying areas with relatively sticky soil texture and poor ventilation and water permeability. This type of soil has high water content, poor drainage, prone to waterlogging, and is not conducive to mechanical operations. In recent years, the proposal of "using rice to control waterlogging" has greatly improved the low-humidity soil. Therefore, the rice industry in Heilongjiang has vigorously developed. With the development of rice production, problems have also emerged. The existing production methods believe that rice production It must be soaked in water during the whole growth period. Although rice needs water during the growth process, the root system needs to grow and absorb n...

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Problems solved by technology

This type of soil has high water content, poor drainage, prone to waterlogging, and is not conducive to mechanical operations.

In recent years, the proposal of "using rice to control waterlogging" has greatly improved the low-humidity soil. Therefore, the rice industry in Heilongjiang has vigorously developed. With the development of rice production, problems have also emerged. The existing production methods believe that rice production It needs to be soaked in water during the whole growth period. Although rice needs water during the growth process, the root system needs to grow and absorb nutrients in an aerobic state. environment, if the rice is flooded for a long time, first, the soil will always be in a reduced state, and there will be a lack of high-valent ions such as oxygen, iron, and manganese around the root system. In this environment, these high-valent ions will be reduced from high-valent to low-valent. Effectiveness It is attached to the root system, which will also lead to a decline in root system activity; second, the sulfate ions in the soil are reduced to SO 2 or H 2 Toxic gases such as S can easily poison the root system and cause crop death; third, the long-term flooding of the soil can easily soften the stems during the rice maturity stage, and the rice is easy to lodging; The decomposition rate of organic residues is slow, and the availability of nutrients such as nitrogen, phosphorus, and potassium is reduced, which limits the absorption of soil nutrients by crops; fifth, the high soil moisture content is not conducive to mechanical harvesting in autumn, and the soil bearing capacity is poor, which limits mechanical harvesting

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