Method of cultivating rice by layer construction and utilization of straw and soil

Abstract

The invention discloses a method of cultivating rice by layer construction and utilization of straw and soil and solves the problems of crop stalk returning, soil aeration and water-fertilizer coupling. The method includes the steps of 1, performing a bed-furrow project on a rice field for the whole year; 2, performing moisture management before each season of crop harvesting; 3, treating stalks of crops of each season; 4, clearing beds and furrows and spreading soil; 5, planting crops; 6, performing field management; 7, harvesting the crops. The method has the advantages that the soil arable layer structure is changed, and a mud layer, a straw layer and a soil layer are formed from top to bottom; the method is good for deeply placing chemical fertilizers and improving availability of the fertilizers; water content of bed soil is decreased, soil aeration is improved, and availability of natural rainfall is improved; the rice field production process is free of tillage, straw burning and field steeping, ecological benefits are significant, operational energy consumption is reduced, haze is decreased, and irrigation water is decreased.

Description

technical field [0001] The invention relates to the technical field of rice cultivation, in particular to a rice cultivation method for layered grass soil construction and utilization. Background technique [0002] According to statistics, the total national grain output in 2013 exceeded 600 million tons, estimated according to the grain-to-stalk ratio of 1:1.2, plus other crop stalks, the national annual production of stalks exceeded 720 million tons, and the stalks contain a large amount of organic matter, nitrogen Phosphorus, potassium and trace elements, the nutrient content of nitrogen, phosphorus and potassium in 720 million tons of stems is equivalent to more than 5.76 million tons of urea, more than 8.4 million tons of superphosphate, and more than 8.4 million tons of potassium sulfate. [0003] Studies have shown that returning crop stalks to the field by pressing or mulching is an effective measure to increase production, and can generally increase production by mo...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN200910272552.7 discloses a whole-process aerobic cultivation method for rice in a fixed box ditch with no-tillage and throwing seedlings, and details the advantages of the no-tillage cultivation method in the background technology, which is conducive to improving soil aeration and reducing greenhouse gas emissions. advantages, but the invention does not involve technologies such as effective treatment of rice straw, water storage and fertilizer conservation, soil fertilization, etc. This patent is aimed at the double cropping system of middle rice and rapeseed, and cannot be applied to the triple cropping system based on double cropping rice

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