Double-cropping rice based ecological ditch direct-seeding cultivation method for triple-cropping early rice

Abstract

The invention discloses a double-cropping rice based ecological ditch direct-seeding cultivation method for triple-cropping early rice, aiming to solve the problem about crop straw returning to field, soil aeration and water and fertilizer coupling. The double-cropping rice based ecological ditch direct-seeding cultivation method includes the steps of 1), executing ditch engineering in a winter crop field; 2), performing water management before harvesting winter crops; 3), treating winter crop stalks; 4), cleaning ditches and spreading out mud; 5), directly seeding early rice; 6), performing field management; 7), harvesting the early rice. The double-cropping rice based ecological ditch direct-seeding cultivation method has the advantages that an arable layer structure of soil is changed; deep application of fertilizer is benefited and utilization rate of the fertilizer is beneficially increased; water content of ditch soil is lowered, soil aeration is improved, and utilization rate of natural precipitation can be improved; no-tillage, no-straw burning and no-filling and soaking of field water in transplanting the early rice are realized; and ecological effect is obvious in that operation energy consumption, haze and irrigation water can be reduced.

Description

technical field [0001] The invention relates to the technical field of rice cultivation, in particular to a double-cropping rice-based three-ripening early rice ecological box ditch direct seeding cultivation method. Background technique [0002] According to statistics, the total national grain output in 2013 exceeded 600 million tons, estimated based on the grain-to-stalk ratio of 1:1.2, plus other crop straws, the country’s annual production of straws exceeded 720 million tons, and straws 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 straw 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 straw to the field by overturning or covering the field is an effective measure to increase production, and c...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN200910272552.7 discloses a full-process aerobic cultivation method for rice in a fixed box ditch with no-tillage and throwing seedlings, and details the advantages of 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 effective treatment of rice straw, water and fertilizer saving, and soil fertilization and cultivation measures. The invention 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

Images