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为明确杂草防除对水稻田间管理的重要性,研究40%苯噻酰·苄·高杀可湿性粉剂对水稻直播田主要杂草的防除效果、对水稻产量的影响以及杂草氮、磷、钾和水分含量的变化规律。结果表明,40%苯噻酰·苄·高杀可湿性粉剂对水稻直播田的主要杂草具有良好的防除效果,有效成分用量为600～1 800 g/hm2的40%苯噻酰·苄·高杀WP综合密度防效和综合鲜重防效分别为96.44%～99.62%、97.14%～99.92%,显著优于对照药剂36%禾·苄WP、10%苄嘧磺隆WP和50%苯噻酰草胺WP。40%苯噻酰·苄·高杀可湿性粉剂施用后,增产效果总体优于对照药剂。
In order to clarify the importance of weed control on paddy field management, the effects of 40% phenylthiobisbenzamide high kill WP on the control of weeds in direct seeding rice fields, the effects on paddy rice yield and the effects of nitrogen, phosphorus, Potassium and moisture content changes. The results showed that 40% phenylthiocarboxylbenzyl hyperbamacic acid WP had a good control effect on the main weeds in direct seeding rice fields. The effective components were 40% phenylbenzyl · benzenesulfonate at 600 ~ 1 800 g / hm2 High-density WP comprehensive density control effect and integrated fresh weight control efficiency were 96.44% ~ 99.62% and 97.14% ~ 99.92%, respectively, which were significantly better than those of the control pesticide 36% Woben benzyl WP, 10% bensulfuron-methyl WP and 50% benzene Thiamethoxam WP. After application of 40% phenylthiobenzylbenzamide high wettable powder, the yield increase was better than the control.