Theoretical studies of the process of distribution of biomaterial on the surface of the field

Abstract

Purpose. Improving the quality of resettlement through Trichogramma the establishment of rational modes of operation of the dosing and seeding device (DVP) of an unmanned aerial vehicle (UAV). Methods. Theoretical studies of the motion of a particle of the test material. Experimental studies using the method of planning a three-factor experiment, methods of statistical data processing. Results. On the basis of the analysis of trichogram resettlement means, the design of the dosing and seeding device of the unmanned aerial vehicle for trichogram resettlement was determined. As a result of the theoretical studies, the trajectory of motion of the particle of the test biomaterial was determined, which makes it possible to set the working width of the capture. According to the results of experimental studies, the quality of material distribution does not change significantly with increasing flight altitude. However, factors such as plant height and obstacles in the field must be taken into account, so flight altitudes of at least 5 m should be respected. Due to the air flow from the quadcopter propellers, the grip width is significantly reduced. Therefore, for qualitative distribution of biomaterial on the surface of the field, the distance between adjacent passages should be 6 m. Conclusions 1.According to the results of theoretical calculations and experimental studies it is established that the flight altitude of an unmanned aerial vehicle during trichogram settlement should not be less than 5 m from the surface of the plant. 2.The qualitative estimation of material distribution on the surface of the field depends on the flight speed, which should be within 3–5 m/s. 3.The uniformity of distribution of biomaterials is greatly enhanced by the correct selection of the working width of the grip, which should be about 6 m. Keywords: dosing sowing device, ejector, unmanned aerial vehicle, biological protection of plants, reshaping of trichograms, norm of settlement, width of capture.