A sprayer movement model for treating reeds in rice irrigation system

Introduction. Rice grawing is an important branch of crop sector in Kuban, which produces about 80% of Russian rice. One of the significant factors reducing the yield of this crop is the presence of high-stemmed weeds growing in the canals and on the rollers of the rice paddy fields. The problem is the lack of structural and technological scheme for the sprayer to protect the rice irrigation system from the reeds providing local treatment of their panicles. When treating the weeds that are on the perimeter of the rice paddy field, the unit is under the influence of disturbances that arise from the unevenness of the relief of the field. These disturbances cause oscillation of the boom in the vertical and horizontal directions, which has a negative impact on the quality of processing the reed panicles. Aim of the Article. The work is aimed at increasing the efficiency of rice paddy fields protection from the reeds by substantiating the design and technological scheme of the sprayer for local treatment of the reed panicles and the model of the sprayer movement according the relief of the rice cheek. Materials and Methods. In theoretical studies, the mathematics and theoretical mechanics methods were used. Experimental studies were conducted on rice irrigation systems of Krasnoarmeiskiy district of Krasnodar region using planning experiments. Results. The design and technological scheme of the sprayer with a right-handed boom, formed according the placement of the reed upper points y = 310,84x0,0955, located in the channel of the paddy field is proposed. Based on the sprayer movement model, the range of boom position variation differs from the regulated value for plowing - 3.1 %; rice stubble - 1.4 %; rape - 0.6 %; clean fallow - 2.3 %; winter wheat - 1.4 %. Discussion and Conclusion. The obtained data show an insignificant difference in the variation of boom oscillation of the proposed sprayer from the adjustment value, which positively affects the quality and accuracy of treating reed panicles. The obtained results can be used for serial production of sprayers for treating high-stemmed weeds in rice irrigation system and high-growing crops.