目前早稻直播在一些地方仍维持较大面积,虽然不少地方已提出限制扩大直播生产,但因减少了育秧环节,免除了烂秧的风险,直播后成苗生长快,也减少手插的繁琐工序,因而很受稻农的欢迎。直播稻种植成功与否,主要与稻田杂草的防除有着重要关系,而它的化学除草与移栽稻和机插稻又有着不同的技术要求,必须区别对待。 At present, the direct broadcast of early rice still maintains a large area in some places. Although many places have put forward restrictions to expand live broadcast production, the risk of rotting seedlings is reduced due to the reduction of seedling raising links. Process, which is very popular with rice farmers. The success of direct-seeded rice cultivation is mainly related to the control of weeds in rice fields, and its chemical weeding and transplanting rice and machine-inserted rice have different technical requirements and must be treated differently.