6533b822fe1ef96bd127dd6b

RESEARCH PRODUCT

Herbicide site specific spraying: use of simulations to study the impact of section width

subject

description

International audience; Site specific spraying is one way to reduce the amount of herbicide required to control weeds. The impact of boom section width was investigated by using simulated weed infestation maps with various weed coverage rates. Herbicide applications were simulated combining these virtual maps with various boom sections widths and various theoretical spray patterns. The objective was to quantify the herbicide reduction possibilities and potential under-application areas. Simulation derived results are analyzed using three indicators: i) the ratio between herbicide amount in the case of a targeted application and the amount deposited in the case of a full application, ii) the proportion of weed coverage on which the application rate is higher than 85% of the rated dosage, iii) the proportion of the sprayed surface on which the deposited application rate is lower than 50% of the rated dosage.