Effect of 9 herbicides on weed control effect and yield in single-cropping late rice direct seeding field
In order to effectively control weeds in direct seeding paddy field and screen efficient and safe agents,9 main weeds control agents were selected to carry out field control experiments,and the effects of these pesticides on yield were studied.The results showed that 4%biazole chlor SC,40%benzylpyr propachlor WP,25 g·L-1 pentaflusulfam OD+300 g·L-1 prochlor EC,38%benzyl-ox-prochlor WP and 13%cyanofluoropyridine ester EC had good control effect.The control effect of total weed were more than 90%and the recovery rate of yield loss was more than 55%at 30 days after treatment.After 30 days of use of 17%pentafluoro·cyanofluoroxoxa,the control effect of weed fresh weight was 87.55%,and the recovery rate of yield loss was 56.13%.In terms of production,it is recommended to promote the application of the above 6 kinds of agents.300 g·L-1 prochlor EC,10%oxazolamid EC,30%cyanofluoxalate EC control effect and yield recovery effect are not ideal,and it is not recommended to promote the application.
herbicidessingle-cropping late ricefield control effectivenessyield
万方数据
维普
