Method for increasing soil organic matter of winter-fallowed paddy field

Abstract

The invention discloses a method for increasing soil organic matter of a winter-fallowed paddy field. The method comprises the steps of milkvetch seeding, compost preparing, rice straw returning to field, milkvetch plowing and the like. According the method, through many years of practice, after rice is harvested, straw returning to field, milkvetch planting and additional farm compost applying are conducted, and the method is simple, easy to operate and low in cost; through an added special soil modifier, decomposition of the organic matter in soil can be accelerated, the winter soil temperature is increased, the soil vitality is kept, it is guaranteed that the good soil physicochemical status can be kept after planting in early spring, the organic matter content of the soil is effectively increased, the important significance for maintaining and improving the farmland quality and promoting agricultural sustainable development is achieved, and the method is suitable for being applied and popularized in large area.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for improving soil organic matter in slack paddy fields. Background technique [0002] Winter slack paddy field refers to the idle farmland from winter to spring plowing before spring planting after the harvest of late rice. If it is not managed, it will lead to overgrown weeds, serious loss of fertilizer soil, enhanced soil restoration, increased toxic substances, damaged soil structure, and decreased fertility. Some fields are also hotbeds for some pests to overwinter, which will greatly affect the yield and quality of rice planting in the coming year. Therefore, organic improvement of winter fallow rice fields is an important technical measure to greatly improve soil fertility and promote high rice yields. [0003] Soil organic matter is the core substance of sustainable soil utilization, and is closely related to soil fertility improvement, sustainable agric...

AI Technical Summary

Problems solved by technology

[0004] At present, most areas in my country rely on the application of organic fertilizers to improve soil organic matter, but there are many disadvantages. First, the organic matter content in the current organic fertilizers is limited, while the mineral nutrients are relatively high. If the amount of organic fertilizers is increased, it is easy to cause excess nutrients. lead to potential salinization; second, the integrated process of the interaction between organic matter and soil after fertilization becomes sluggish due to the influence of cultivation and tillage, and the self-recovery function of the soil ecosystem cannot be exerted; third, the chemical process of organic transformation is not necessary Energy and material support, making it difficult for functional microbial populations and quantities to meet metabolic needs