A method for preventing subsidence of agricultural machinery entering the field in winter paddy fields

Abstract

The invention belongs to the technical field of rice planting, and discloses a method for preventing subsidence of agricultural machinery in winter paddy fields, comprising: reducing the depth of the plow layer through continuous no-tillage in winter paddy fields with a depth of plow layer greater than 20 cm, and the continuous no-tillage period is 2-4 years; After the depth of the plow layer, the paddy field is kept at 10-15cm by rotary tiller, and the depth of the rotary tiller is 10cm; in the middle stage of rice growth, that is, from the tillering stage to the jointing stage, the field is drained for the first time to dry the field, and the intensity of the field is reduced. The soil moisture content of the 20cm plow layer in the field is reduced to 60%-70%; the second drainage and drying of the field: the second drainage and drying of the field at the late stage of rice growth, that is, 10-15 days after the full ear, the soil surface compactness value is greater than that of harvesting The grounding pressure of the machine theory is used to realize machine harvesting; water management during rice growth: in the other periods except for the two drainage and drying times, the field is mainly irrigated with shallow water. The invention breaks through the technical bottleneck of rice production mechanization in the winter paddy field (Shenjiao field), and can increase the yield of rice; it proposes the no-tillage period of the winter paddy field and the intensity index of two dryings.

Description

technical field [0001] The invention belongs to the technical field of rice planting, and in particular relates to a method for preventing subsidence of agricultural machinery in winter paddy fields. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: rice is planted in summer, and winter idle fields flooded in winter are customarily called "winter paddy fields". Winter paddy fields are the main form of paddy field management in the middle-season rice-regeneration rice area in southeast Sichuan. The main function of the winter paddy field is to "collect rain and protect planting". There is no irrigation water source in this area, and the rice field collects rain and stores water in winter to ensure the water source for seedling raising and transplanting in spring. During the long-term evolution process, the soil of winter paddy fields has special physical properties, mainly manifested as scattered structure, poor so...

AI Technical Summary

Problems solved by technology

[0003] In summary, the existing problems in the prior art are: winter paddy field soil has special physical properties, mainly manifested as scattered structure, poor soil cohesiveness and plasticity, and no plow bottom layer, which seriously affects the development of rice planting mechanization

Images