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稗草和异型莎草是我县后季稻秧田中的主要杂草,为了摸清新型化学除草剂去草胺控制这些杂草的能力,近年来,我们在田间进行除草试验,推广面积不断扩大,取得了良好的效果。 (一)材料方法供试药剂为60%去草胺乳剂、50%杀草丹乳剂和100%杀草丹颗粒剂,并设不施药区为对照。水稻品种为晚粳“农虎6号”。分15个小区,每小区0.09亩,三次重复。去草胺亩用量1.5两;50%杀草丹乳剂亩用量分别为2.5、4两;10%杀草丹颗粒剂亩用量为1斤。各处理兑水100斤/亩,用背负机喷雾。施药时秧板保持薄水层,3天后进行正常的水浆管理。用药后20天调查除草效果。
Barnyardgrass and Shaped Cyperaceae are the major weeds in the late season rice paddy field in our county. In order to find out the ability of the new chemical herbicide herbicide to control these weeds, in recent years, we conducted weeding tests in the field with the promotion of expanding area ,got a good result. (A) Materials and Methods Test agents for 60% to herbicidal emulsion, 50% kill herbicide Dan and 100% kill Caodan granules, and set no application area as a control. Rice varieties for late japonica “Nonghu 6th.” Sub-15 sub-district, 0.09 acres per plot, three repeated. To herbicola mu amount of 1.5 two; 50% kill herbicide emulsion amount of mu were 2.5,4 two; 10% kill Caotan granules mu amount of 1 kg. Each treatment watered 100 kg / mu, with a negative machine spray. Rice seedlings to maintain a thin layer of water, 3 days after the normal water slurry management. Weeding effect was investigated 20 days after treatment.