论文部分内容阅读
通过田间试验研究苄嘧磺隆.丁草胺药肥对水稻抛秧田杂草的控制效果和对水稻产量的影响,为水稻抛秧田草害的化学防控提供依据。结果表明,0.101%苄嘧磺隆.丁草胺药肥颗粒剂对水稻抛秧田的稗、异型莎草和鸭舌草均具有较好的防除效果,有效成分用量606～1 212 g·hm-2的综合防效可达90%以上,显著优于对照药剂10%苄嘧磺隆可湿性粉剂。苄嘧磺隆.丁草胺施用后水稻分蘖数、有效穗数及产量均显著提高,增产效果总体优于对照药剂。苄嘧磺隆.丁草胺药肥既可作为肥料使用,又可作为除草剂使用,是一种防除稻田杂草的高效复配药肥混剂,在水稻抛秧田具有良好的推广应用前景。
Field experiments were conducted to study the control effect of bensulfuron-methyl and butachlor on weeds in paddy field and their effects on rice yield, which provided the basis for chemical control of paddy field. The results showed that 0.101% bensulfuron-methyl and butachlor drug granules had good control effects on barnyard grass, Shaped sedge and Monochoria tabaci in paddy field, the effective dosage was 606-1 212 g · hm- 2 comprehensive control effect of up to 90%, significantly better than the control agent 10% bensulfuron-methyl WP. Bensulfuron-methyl, the number of tillers, the effective panicle number and the yield of butachlor were significantly increased after applying butachlor, the yield-increasing effect was better than the control. Bensulfuron-methyl, butachlor medicinal fertilizer can be used as fertilizer, and can also be used as herbicide. It is a kind of compound fertilizer with high efficiency to control weeds in paddy field, and has good popularization and application prospect in paddy-seedling.