Rice straw returning seeder and rice straw returning seeding method

Abstract

The invention relates to a rice straw returning seeder and a corresponding rice straw returning seeding method, and belongs to the technical field of agriculture. The seeder is mainly composed of a walking chassis, a straw cutting and conveying device, a straw shredding device, a seeding device and a smashed straw spraying device. Straw picking, cutting, conveying, shredding, seeding and smashed straw covering operation can be completed at a time. The corresponding method comprises the steps that long straw stubble and threshing discharge obtained after rice harvesting are cut and collected, and the smashed straw with the length not larger than 8 cm is obtained through cutting; then, crop seeds are sown on an inasaka stubble field in rows, and then the field surface is evenly covered with shredded straw. According to the rice straw returning seeder and the corresponding rice straw returning seeding method, the full quantity of rice straw can be returned to the field, so that environmental protection is facilitated, the seeding quality of afterreap crop (rice, oilseed rape and the like) can be improved, the yield is improved, and therefore good social and economic benefits can be obtained through usage and popularization of the rice straw returning seeder and the corresponding rice straw returning seeding method.

Description

technical field [0001] The invention relates to a planter for returning rice straw to the field, and also relates to a corresponding method for sowing rice straw returning to the field, belonging to the field of agricultural technology. Background technique [0002] More than 85% of the total area of ​​rice mechanized harvesting in my country uses full-feed combine harvesters. In recent years, the straw burning ban has been implemented, and the main outlet for rice straw is to return all the straw to the field. The method commonly used at present is to bury the rice straw in the soil before sowing the subsequent crops, that is, the rice straw burying and returning to the field sowing planting method. The threshed straw is chopped and laid on the field surface, then rotary tillage is used to bury the straw, and finally sowing is carried out. The method requires low stubble of rice straw and long straw after threshing to be chopped and laid on the field surface, and the purp...

AI Technical Summary

Problems solved by technology

[0004] 1. The operation of the full-feed harvester with low stubble retention leads to an increase in the amount of straw fed. Due to the high moisture content of rice straw, on the one hand, it will greatly increase the power consumption of threshing, and on the other hand, it will increase the separation and cleaning of rice and straw Difficulty leads to a sharp increase in harvest loss;

[0005] 2. If a thick layer of rice straw is spread on the surface of the paddy field, the resistance will increase significantly during rotary tillage, the depth of tillage will decrease, the quality of tillage will decrease, and the straw burial effect will not be good;

[0006] 3. After the straw is buried and returned to the field, crops such as wheat or rape are planted. Due to factors such as uneven distribution of straw and insufficient soil coverage, the straw will lift the soil, causing soil moisture loss, affecting the emergence of subsequent crops, and even dead seedlings after emergence.

[0007] In addition, using the existing row seeder to sow, the seeds will be unevenly distributed after landing, and the dispersion is not good, and the seeds gathered together are not good for the growth of the crops, which will directly affect the quantity and quality of the spikes of a single crop. It is not conducive to the measures to increase the yield per mu by increasing the number of basic seedlings

[0008] As can be seen from the above deficiencies in the prior art: the one is that the rice straw burying and returning to the field sowing planting method used will not only increase the power consumption and harvest loss of the harvester, but also be unfavorable for the planting of subsequent crops; the other is that the existing planter Cannot meet the sowing requirements to increase yield by increasing the number of basic seedlings

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