THE STUDY OF THE ROD-RING ROLLER IN PRODUCTION CONDITIONS

One of the methods of surface tillage is its rolling, which improves the contact of seeds with the soil and creates optimal porosity to provide the necessary amounts of moisture and air for plant seeds. The optimal parameters of the roller for high-quality soil rolling were determined. The new design of the rod-ring roller proposed by us was developed taking into account the guaranteed fulfillment of agrotechnical requirements. Production studies have shown that favorable conditions for seed development are created in the soil processed by the proposed roller, which contributes to the acceleration of plant development and the formation of a larger number of grains in an ear. The optimization criterion kko, taking into account the conformity of the soil to agrotechnical requirements both in density and in fractional composition after rolling crops with a rod-ring roller was 0.74, while a smooth water-filled roller provided kko = 0.63. The optimum value of kko is achieved at a specific pressure of the roller on the soil of 1533.3 N/m, a rotation frequency of the disks with rings of 1300 min1, a speed of the rod-ring roller of 15 km/h and a gear ratio of the passive drive of 5.21. The use of the roller developed by us for compacting the soil after sowing spring wheat led to an increase in the height of seedlings by 14.5% compared to the use of a conventional smooth water-filled roller on the 7th day. In addition, the use of the developed rod-ring roller increased the yield of spring wheat by 1.2 c/ha, which ensured an increase in yield by 7.4% compared to the control variant, in which a widely used smooth water-filled roller was used. Thus, the use of a rod-ring roller improves the quality of the soil and increases the yield of spring wheat by 1.2 c/ha, which is 7.4% more than when using a smooth waterfilled roller.