Research of technological possibilities to spray herbicides on dense crop

Abstract

The analysis of herbicide spraying on dense crop process has been made on the grounds of Bernoulli's equation for flow of liquid coming out of a nozzle. Having evaluated energy losses, a mathematical expression of drop permeability power in dense crop has been established. Technological means of increasing drop permeability on dense crop have been established on the grounds of research data. To evaluate weed remowal efficiency in dense crop, comparative field-laboratory analysis has been made in winter wheat field using herbicide Glyfos. During the research a hydraulic sprayer Hardi NK-600, hydropneumatic sprayer Hardi Master Twin Stream-1000 and band spraying equipment Hardi RS-200 were used. Standart nozzles Hardi F-04-110, injector nozzles Lechler JD-120-03 and band nozzles Hardi 4680-13E were used in the research. The research resulted in reduction of weediness when spraying with NK sprayer and F-04-110 nozzles - 24%, with JD-120-03 nozzles - 63% with Twin Stream - 82% and 91% with band spraying equipment and crop spreading.