论文部分内容阅读
试验研究了30%丁草胺.苄嘧磺隆防除水稻移栽田稗草、鸭舌草、矮慈姑等的效果,并测定了杂草对氮、磷、钾和水分的影响以及水稻产量的影响。结果表明,30%丁草胺.苄嘧磺隆对水稻移栽田的主要杂草具有良好的防治效果,有效成分用量为315～720 g/hm2的30%丁草胺.苄嘧磺隆综合密度防效和综合鲜重防效分别为88.25%～98.77%、83.59%～99.32%,显著优于对照药剂10%苄嘧磺隆WP和60%丁草胺EC。30%丁草胺.苄嘧磺隆施用后,增产效果总体优于对照,在水稻移栽田具有良好的推广前景。
The effects of 30% butachlor and bensulfuron-methyl on the control of barnyardgrass, monocotyledon, dwarf arrowhead and so on in transplanted rice fields were tested and the effects of weeds on nitrogen, phosphorus, potassium and water and the yield of rice influences. The results showed that 30% butachlor and bensulfuron-methyl had good control effect on the main weeds in transplanting paddy fields, and the effective components were 30% butachlor at the dosage of 315 ~ 720 g / hm2.Bensulfuron- The density control effect and comprehensive fresh weight control efficiency were 88.25% -98.77% and 83.59% -99.32%, respectively, which were significantly better than the control agents 10% Bensulfuron-methyl WP and 60% Butachlor EC. After 30% butachlor and bensulfuron-methyl application, the yield increase effect is better than the control, which has a good popularization prospect in transplanting rice.