Results of experimental studies of physical and mechanical properties of melon crop lashes

Introduction. Obtaining guaranteed high yields of melon crops is possible with full compliance with all technological operations of their cultivation. One of such operations is weed control [2, 11]. For this purpose, as weeds appear, crops are cultivated. But during the third and sometimes the second cultivation, the lashes grow in the aisles so much that when the tractor passes, its wheels are damaged. Therefore, it is necessary in this case to shift the lashes from the aisle to the axis of the row, and after the passage of the machine-tractor unit, return them to their place. The most promising tool for performing these operations is a tool for laying and subsequent layout of lashes with an active type working body, which ensures the movement of lashes on the soil with minimal displacement relative to the working body. But the calculation of the basic structural and kinematic parameters of the machine is impossible without knowledge of the basic dimensional-mass and strength parameters of the lashes. This determines the need for these studies [1, 5].

Object. The objects of the study were plants of three varieties of watermelon "Crimson Sweet", "Impulse" and "Chill".

Materials and methods. The development of the technological process and design of the machine, the work of which is associated with the impact on the processed agricultural materials, should be based on knowledge of their physical and mechanical properties, which determine its ability to resist deformation and destruction. This was pointed out by academicians Goryachkin V. P., Zheligovsky V. A., Listopad G. E. and a number of other scientists involved in the development of technological processes for agricultural production and new machines for their implementation. In experimental studies, both a general methodology was used, and in some cases a private methodology was developed. This was due to the fact that melon plants have a wide variety of physical and mechanical properties, which required the development of both special equipment and devices, as well as features of measuring the required values. The research results were processed using mathematical statistics methods and presented in the form of tables and graphs [6].

Results and conclusions. The conducted experimental studies made it possible to determine the main strength and size-mass values of watermelon lashes, which are necessary for calculating the parameters of the working body of the active type of tool for laying-laying lashes.

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