江苏省稻田稗草发生情况及治理对策

Present Situation and Management Strategies of Barnyardgrass in Rice Fields of Jiangsu Province

稗草为江苏省稻田常发杂草,在生长期与水稻竞争养分。江苏省稻田化学除草较早,用药年限长,田间抗性问题逐渐突出;并且由于“轻型栽培”制度的推广,稻田稗草发生危害日益严重,对粮食作物高产、稳产构成威胁。为更好地开展稻田稗草防除工作,本文分析并探讨了江苏省稻田稗草发生现状及治理对策,以期指导科学用药,实现减药控害。

Barnyardgrass was a common weed in Jiangsu province, which made competition with rice for nutrition during growth. There was a long history of weeding with chemical herbicide in rice fields of Jiangsu province. The problem of drug resistance was getting worse and worse. Barnyardgrass was getting seriously in rice fields because of promoting the use of rice light cultivation. It threated to food security production. Thus the article analyzed and discussed the present situation and management strategies of barnyardgrass in Jiangsu province to increase the technology of weeding and guide farmers in scientific use of herbicide. Finally, it would promote reducing use of pesticide.