能否有效地防除杂草,是关系到水稻旱种成败的关键。水稻旱种四叶期之前约30—40天不需要灌溉,四叶期后,一般是采用湿润灌溉的方法,不能象育苗移栽稻田那样用水层抑制杂草的生长,只能用高效而安全的化学除草技术作保证。①除草醚乳剂(35％),主要用作土壤处理,杀死 Whether we can effectively control weeds is the key to the success or failure of rice dry farming. Rice does not require irrigation for about 30-40 days prior to the four-leaf stage of dry farming. After the four-leaf stage, the method of wet irrigation is generally adopted. Therefore, the growth of weeds can not be inhibited by the water layer as in the transplanted paddy fields, but only with high efficiency and safety Chemical weeding technology as a guarantee. ① weeding ether emulsion (35%), mainly used for soil treatment, killing