除草剂对红小豆田杂草防效的研究

Study on Effect of Weed Control Using Herbicides in Sprouted Bean Field

试验采用随机区组设计的方法,研究了适合于红小豆田的化学除草技术。研究结果表明,收乐通作为茎叶处理剂,对红小豆田禾本科杂草防效达100%,且对红小豆安全,另外,高效盖草能、拿捕净、威霸、精稳杀得对红小豆也安全并且防效都在90%以上,是红小豆田安全有效的除草剂。本试验中尚未发现茎叶处理剂中对红小豆安全且对阔叶杂草防效较高的除草剂。在除草剂的土壤处理中,禾耐斯(1 500 mL)+赛克(750 g)+水(750 g)是一种理想配方,对红小豆安全,且对阔叶杂草的防效也好(>80%);对红小豆安全且对禾本科杂草防效较好(>77%)的处理为90%禾耐斯。

In this randomized blocks experiment, applicative techniques of herbicides in Sprouted Bean field were tudied. The results indicated that, the control effect of Clethodim on gramineous weed in Sprouted Bean field was 100% and also safe as foliage herbicide. The control effects of haloxyfop-P-methyl, sethoxydi, fenoxaprop-P-ethyl, fluazifop-P-butyl on gramineous weed were more than 90 %, and they are safe herbicides in Sprouted Bean field. We didn＇t found good herbicide for high control effect of broad-leaved weeds and safe in Sprouted Bean field in this experiment. Herbicides soil treatment, for acetochlor （1 500 mL） ＋metribuzin （750 g） ＋water （750 g） was safe for Sprouted Bean and the control effect for gramineous weed could reach more than 80%, the 90% acetochlor was also safe and the control effect for broad-leaved weeds was 77%.