Three-pool coordinated high-yield cultivation method for paddy field in south

Abstract

Provided is a three-pool coordinated high-yield cultivation method for paddy fields in south. Aimed at double cropping rice triple-cropping region paddy fields, pools are moderately expanded through deep ploughing in winter or an early rice season, pools are sufficiently cultivated through winter crop green manure and straw field returning, pool usage is saved by late rice no-tillage, moistening irrigation, and shifting agriculture for a plurality of years, and a pool expanding, pool cultivating and pool usage three-pool coordinated method for establishing a reasonable plough layer overcomes reality problems that soil plough layers of paddy fields in south become shallow, and acidize and harden, and cultivability becomes bad, physical and chemical properties get poor, soil pool capacity becomes low, and moisture and fertility preservation performance becomes poor. The method can save energy, protect soil structure, reduce water and soil loss, and retain soil nutrient, and can improve depth of a soil plough layer, improve soil structure, expand soil pool capacity, improve soil nutrient content, improve water and fertility utilization efficiency, so as to establish a rational soil plough layer long-effect management mechanism of paddy fields and realize paddy continuous high yield.

Description

technical field [0001] The invention relates to a method for synergistic high-yield cultivation of three banks in southern paddy fields, in particular to a method for synergistic high-yield cultivation of rice fields with three banks in double-cropping rice and three-cropping areas in southern China. Background technique [0002] Southern paddy fields are affected by long-term no-tillage and large-scale application of chemical fertilizers and herbicides, paddy field winter slack, winter soaking, and paddy field overwintering, resulting in shallow soil plow layer, acidification and hardening, poor tillability, poor physical and chemical properties, and soil storage capacity. Small size, secondary gleization and gleization, and poor water and fertilizer retention performance have seriously affected the growth and development of rice and the potential for sustainable increase in production. Although some conventional methods such as winter planting of green manure, deep tillage...

AI Technical Summary

Problems solved by technology

[0002] Southern paddy fields are affected by long-term no-tillage and large-scale application of chemical fertilizers and herbicides, paddy field winter slack, winter soaking, and paddy field overwintering, resulting in shallow soil plow layer, acidification and hardening, poor tillability, poor physical and chemical properties, and soil storage capacity. Small, secondary gleization and gleization, poor water and fertilizer retention performance, seriously affecting the growth and development of rice and the potential for sustainable increase in production

Although some conventional methods such as winter planting of green manure, deep tillage (or rotary no-tillage), straw returning, and wet irrigation can improve part of the soil structure, but in the long run, the effect is not obvious or sustainable. Therefore, it is urgent to study different agricultural methods. Institutional model Paddy field paddy rotation technology, deep plowing, turning, rotation, and combination-free soil rotation technology, straw returning integration technology, water-saving, fertilizer-saving and efficient production technologies, etc., to find a three-storage system of expansion, maintenance and use Synergistic sustainable and high-yielding cultivation methods to solve the above problems

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