Deep burying and returning machine of corn straw in cold region

Abstract

The invention discloses a deep burying and returning machine of corn straw in a cold region. The deep burying and returning machine of corn straw in a cold region comprises a tractor, a straw returning and deep burying fertilization device is hung on a rear part of the tractor, and a straw smashing and microorganism applying device is hung on a front part of the tractor; a transmission box is arranged on the straw smashing and microorganism applying device and connected with a smashing cutter shaft and a water pump, a smashing cutter is arranged on the smashing cutter shaft, the water pump is connected with pesticide spraying nozzles through a pesticide conveying pipe, an electromagnetic valve is arranged on the pesticide conveying pipe, and the electromagnetic valve is connected with an inclined switch; and the deep burying fertilization device is provided with a deep ploughing plough, two fertilization mechanisms, two straw cleaning plates and two land wheels sequentially arranged from front to back. The deep burying and returning machine improves working efficiency of microorganism applying, deep burying and returning of straw and solves a problem that cutting missing is caused due to the fact that tractor wheel tracks can compress straw. A microorganism applying device can be automatically started and stopped according to the working condition of the straw smashing and microorganism applying device. The deep burying and returning machine can also deeply bury straw on the earth surface into the soil by 30 cm or below, spray a nitrogen fertilizer according to a running speed and improve a decomposition rate of the straw.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a deep-buried corn stalk returning machine in cold regions. Background technique [0002] At present, the soil protection measures in the black soil region of the Northeast cold region mainly include straw mulching, no-tillage sowing, subsoiling, reducing chemical fertilizers and increasing organic fertilizers, and straw returning to the field. Straw returning technology can not only increase the plow layer, but also significantly increase the content of soil organic matter, which has become an important measure for the protection of black soil layers in Northeast China. It takes at least 2-3 years for corn stalks to be completely decomposed into organic matter by simply returning them to the field. If the humidity and temperature are too low, it may take longer to degrade. In recent years, after crushing the straw to about 5 cm, spraying the decomposing agent and...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above technical problems, the present invention provides a machine for deep burying and returning corn stalks in cold regions. The device for crushing and fertilizing corn stalks works at the same time as the deep burying and fertilizing device for returning corn stalks. It improves the working efficiency and solves the problem that the tractor rut will compress the straw and cause missed cutting. The bacteria applicator can also start and stop automatically according to the working status of the straw crushing and bacteria applicator.

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