Evaluation of herbicides and cultural method for weed control in cotton

摘要

Weed competition is one of the important biological constraints in cotton cultivation. There were many methods adopted by farmers for control of weeds in the field and chemical method of weed control has been proved to be the best. However, satisfactory control of weeds cannot be achieved by using any one method alone. Pre-emergence application of herbicides would be appropriate for minimizing only the early weed competition and problem of late emerging weeds is more serious (Patil et al., 1997). Information on directed spray of non-selective post-emergence herbicides in a wide spaced crop like cotton is limited and hence the present study was undertaken.