Stubble cutting and soil covering type spatial layering fertilization device

Abstract

The invention discloses a stubble cutting and soil covering type spatial layering fertilization device, and belongs to the field of agricultural machinery. The stubble cutting and soil covering type spatial layering fertilization device comprises a fertilization pipe group, and a double-disc stubble cutting mechanism, a layering fertilization shovel and a side-position soil crushing and pressing mechanism which are sequentially arranged below a beam group component from front to back, wherein the fertilization pipe group is connected with a fertilizer supply device above the fertilization pipe group, the fertilization pipe group penetrates through the side-position soil crushing and pressing mechanism, and an outlet group of the fertilization pipe group is arranged between the layered fertilizing shovel and soil crushing and pressing wheels of the side-position soil crushing and pressing mechanism; and a middle-layer left-side fertilization bifurcated pipe and a middle-layer right-side fertilization bifurcated pipe are fixedly connected to the lower end of a middle-layer fertilizer distributing pipe in the fertilization pipe group through elbows, and side wing soil distributing shovels are arranged in front of the middle-layer left-side fertilization bifurcated pipe and the middle-layer right-side fertilization bifurcated pipe. Soil blocks disturbed above two side wings of the layering fertilization shovel can be pressed and crushed, besides, soil on the two sides is rapidly pressed into a fertilized ditch, active soil covering is achieved, a fertilizer on each layer is rapidly supported by the soil after being discharged out of a fertilizer discharging opening, and falling of the fertilizer on the upper layer is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a stubble cutting and soil covering type space layered fertilization device. Background technique [0002] The growth of crops is inseparable from fertilization. Fertilizers are the "grain" of food crops and important means of agricultural production, which can greatly improve the yield and quality of crops. With the development of modern agriculture and the continuous improvement of mechanization, manual fertilization has been basically replaced by machinery, and the efficiency of fertilization has been greatly improved. [0003] At present, there are many types of fertilization machines, such as strip application, spreading application, hole application, etc. Among them, strip application is the most widely used. Generally, fertilization is performed at the same time as crop sowing, and only single layer and single depth can be achieved. Fertilization at fixed l...

AI Technical Summary

Problems solved by technology

But in actual operation, the time difference between the discharge of each layer of fertilizer is relatively small, and the time difference between the backfilling of each layer of soil is relatively large (layered fertilization belongs to deep fertilization, deep trenching, and relatively slow return to soil), resulting in the upper layer After the fertilizer in the middle layer is discharged, there is not enough soil to support it in time, and it slides to the lower layer, causing the layered fertilization effect to be insignificant

Therefore, when carrying out more than two layers of multi-layer fertilization in the prior art, it is difficult to realize the expected proportional layered fertilization

[0006] At the same time, in layered fertilization, if each layer uses the same fertilizer, in the early stage of crop growth, the fertilizer in the lower layer cannot be absorbed in time, which will cause fertilizer loss and waste, and reduce the utilization rate of fertilizer

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