Design And Experiment Of Deep-application Organic Fertilizer Trenching Device For Grape

In recent years,Xinjiang has vigorously developed characteristic industries and carried out agricultural restructuring.The jujube industry has developed rapidly and healthily,and its planting area,output,and deep processing capacity have been greatly improved relying on advantageous resources.In the process of planting red dates,fertilization is an important factor that affects the output and quality of red dates.Design methods and experimental research.Based on field investigation,the planting mode and soil physical characteristics of Xinjiang jujube were analyzed,and a physical model was established to theoretically analyze the influence of parameters such as different cutter head rotation speed,diversion angle of the diversion surface,and the distance between the surface and the ditching blade on the soil trajectory;The influence of different parameters of the flow device and the speed of the cutter head on the soil return during the trenching process.According to the characteristics of Xinjiang jujube soil,a diversion device suitable for the deep application of organic fertilizer on the jujube was designed,which is mainly composed of: support,soil facing surface,soil gathering surface,soil transporting surface and soil feeding surface.The outer shell of the built-in plough-like surface throws the surface of soil,when the soil is moved from the soil-transporting surface to the soil-transmitting surface in order to control the throwing distance.Based on the design of the diversion device and the calibration of the soil parameters,the discrete particle simulation software was used to establish the soil particle model and the soildiversion device interaction model.The influence law of the combination of influencing factors on soil return.It is concluded that the influence of various factors on the soil backflow from large to small is as follows: the speed of the cutter head is greater than the inclination angle of the curved surface and the distance between the curved surface and the relative groove cutter.According to the results of the response surface test,using the Optimization function provided by the Design-Expert software,the best combination of influencing factors is the cutter wheel speed 126 r·min-1,the surface tilt angle is 49°,and the surface is 46 mm away from the groove cutter.The return soil at this time is 4.01 cm.The field test proves that the average return depth of the deflector is 5.53 cm,and the average value of the relative error between the theoretical value and the field test value is less than 10%.The throwing of soil has a good effect in reducing the backflow of the soil by trenching.This study provides a theoretical basis and design basis for the development of the diversion device.