English to Portuguese Tech/Engineering Agriculture weed control (cotton)

This is the study on the effects of a herbicide on cotton crop.

"Once the crop established, crop injury and stand loss evaluations were taken in May and June. Monthly weed density evaluations were taken from May to September. In both years, the PRE treatments did not cause crop injury or stand loss. Final plant mapping was taken before defoliation. In both years, the crop was harvested in October. It is not determined if the PRE treatments incorporated did an excellent job of controlling weeds or weed pressure was just low. The data for both years showed that weed pressure was nonexistence. None of the treatments affected (P>0.05) weed densities, stand loss, crop injury, and final plant mapping. Although, the treatments applied at 35 DPP had no effect on lint yield, differences occurred between the treatments for lint yield when they were applied at 15 DPP.""