Gas-assisted layered deep fertilizing machine and using method

Abstract

The invention relates to a gas-assisted layered deep fertilizing machine and a using method. The gas-assisted layered deep fertilizing machine comprises a rack, furrow openers, layered deep fertilizing devices and a gas-assisted fertilizer discharging device, wherein the furrow openers, the layered deep fertilizing devices and the gas-assisted fertilizer discharging device are installed on the rack; each layered deep fertilizing device comprises a material discharging device, a cylinder fixedly connected with the rack and a fertilizer discharging auger installed in the cylinder, a closed passage is formed between each fertilizer discharging auger and the corresponding cylinder, a discharging port of each closed passage is communicated with at least two fertilizer discharging pipes, and thedischarging end of each fertilizer discharging pipe faces backwards and is located behind the furrow openers. By means of the gas-assisted layered deep fertilizing machine, fertilizer granules fall into the soil which is crushed by the furrow openers and then restored, the layered deep fertilizing precision is effectively improved, and the layering failure caused when the fertilizer granules fallto the bottoms of furrows is avoided; the fertilizer discharging augers adopt fixed-screw-pitch and variable-radius design so that the fertilizer granules can achieve spiral downward acceleration with the assistance of gas pressure, the initial speed of discharging the fertilizer granules is increased, and meanwhile the fertilizer granules are blended in the acceleration process and discharged more uniformly.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an air-assisted deep layered fertilizer applicator and a use method. Background technique [0002] Layered deep fertilization technology plays an important role in maintaining and improving soil fertility and promoting crop growth. However, according to the existing operation method, in order to achieve layered deep fertilization, it is necessary to complete the ditching and fertilization operations separately, and the tractor repeatedly enters the ground, resulting in soil compaction, which is not conducive to crop growth, and the repeated entry into the ground is time-consuming, energy-consuming, and operation efficiency is high. Low, poor economy. At the same time, in the traditional layered deep fertilization operation, the fertilizer particles are easy to fall into the bottom of the ditch after being discharged from the fertilizer discharge pipe, resulting in...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned technology cannot solve the problem that the fertilizer is easy to fall into the bottom of the ditch, and the accuracy of layered fertilization is difficult to guarantee

At the same time, it has poor adaptability to different soil textures, and different soil textures may seriously affect the effect of layered fertilization

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