Validation technological means for inter row loosening and band spraying in sugar beet cultivation

Šiame numeryje išspausdinta tarptautinės konf. "Хидромелиорациите и механизацията - фактори за устойчиво развитие на земеделието", vykusios 2003 m. rugsėjo 8-10 d. Sofijoje (Bulgarija), medžiagaThe object of the present study are the processes of herbicide band spraying and interrow loosening, the movement of working parts of interrow cultivator, and management efficiency of sugar beet crops. The goal of the study is to validate technological processes for combined management of sugar beet crops and for the control of working parts of the unit that would enable to increase labour efficiency, reduce herbicide input and enhance efficiency of machinery. Processes and machynery designed for interrow loosening and band herbicide spraying, as well as control possibilities of a tractor mounted cultivator's working parts are analysed in this study. Relationships of distribution of spray solution droplets in the band were identified on the basis of field and laboratory tests evidence as well as the effects of herbicide spray applications and soil loosening on crop weed incidence and hardness of interrow soil. Energy and economic efficiency of band spraying with interrow loosening is compared with overall herbicidal control of weedsVytauto Didžiojo universitetasŽemės ūkio akademij