to estimate efficacy of soil applied herbicides in sunflower influenced by high and limited
amount of rainfalls, and (ii) to evaluate their injury effect and (iii) influence on the sunflower
yield. … Not one of PRE-em applied herbicides yielded higher than the weed-free control,
because sunflower yields were more closely related to percent of weed control. In 2019, the
effective removal of the competitive effect of the weeds led to an increase of the participation …