水稻免耕抛秧栽培的关键技术在于除草灭茬。采用农民乐747、草甘膦、克无踪等3种除草剂进行2年4造田间试验结果表明,不论早、晚稻,农民乐747和草甘膦药效均较稳定,除草灭茬较彻底,比常耕增产8.0%~9.5%,每公顷增收节支450~900元,适合本区推广应用。克无踪在同等条件下使用,除草灭茬效果不理想,不宜在免耕稻田上单独使用。 The key technology of no-tillage and throwing rice cultivation lies in weeding and stubble cutting. The result of peanut-Le747, glyphosate-No-Trace and other three herbicides for 2 years and 4 years of field trial showed that both the early and late rice, the farmers 747 and the glyphosate efficacy were stable, the weed stubble was more thorough, 8.0% ~ 9.5% more than that of conventional plowing. The cost per hectare will be reduced by 450 ~ 900 yuan, which is suitable for popularization and application in this area. No trace under the same conditions, the use of weeding stubble is not ideal, should not be used alone in no-tillage rice fields.