| 袁国徽1, 房加鹏1, 高 原1, 郑 涛2, 田志慧1*, 沈国辉1*.9种除草剂对移栽稻田多年生杂草扁秆荆三棱的防除效果[J].植物保护,2025,51(2):346-351. |
| 9种除草剂对移栽稻田多年生杂草扁秆荆三棱的防除效果 |
| Control efficacy of nine herbicides on perennial weed Bolboschoenus planiculmis in transplanted rice fields |
| 投稿时间：2024-04-15 修订日期：2024-05-09 |
| DOI：10.16688/j.zwbh.2024216 |
| 中文关键词: 移栽稻田 扁杆荆三棱 杂草防除 除草剂 |
| 英文关键词:transplanted rice fields Bolboschoenus planiculmis weed control herbicide |
| 基金项目:上海市科技兴农重点攻关项目(2022-02-08-00-12-F01166); 生态所启航计划科技专项(生科创-QB2023-5) |
|
| 摘要点击次数: 88 |
| 全文下载次数: 72 |
| 中文摘要: |
| 为筛选防除移栽稻田多年生杂草扁秆荆三棱Bolboschoenus planiculmis的高效除草剂, 本研究利用田间小区药效试验评价了9种除草剂对扁秆荆三棱生长的抑制作用。结果表明, 33%嗪吡嘧磺隆WG 99 g/hm2、75%氯吡嘧磺隆WG 45 g/hm2和19%氟酮磺草胺SC 34.2 g/hm2处理对扁秆荆三棱具有良好的防除效果, 且持效期较长, 药后36 d, 其株防效为87.73%～88.96%、鲜重防效为90.77%～93.19%、株高抑制率为68.75%～71.45%、地下根茎的新芽抑制率为91.74%～94.50%; 56% 2甲4氯钠SP 630 g/hm2、10%吡嘧磺隆WP 30 g/hm2和30%苄嘧磺隆WP 90 g/hm2对扁秆荆三棱的防除效果一般, 且持效期较短, 药后36 d, 其株防效为38.96%～49.39%、鲜重防效为46.08%～58.22%、株高抑制率为30.30%～45.22%、地下根茎的新芽抑制率为25.69%～44.95%; 而4%双唑草腈SC 60 g/hm2、25%双环磺草酮SC 225 g/hm2和3%氯氟吡啶酯EC 36 g/hm2对扁秆荆三棱的防除效果略差; 所有药剂处理对水稻生长安全, 其中33%嗪吡嘧磺隆WG 99 g/hm2、75%氯吡嘧磺隆WG 45 g/hm2和19%氟酮磺草胺SC 34.2 g/hm2处理对水稻增产效果显著。 |
| 英文摘要: |
| To screen for effective herbicides against the perennial weed Bolboschoenus planiculmis in transplanted rice fields, this study utilized field experiments to evaluate the inhibitory effects of nine herbicides on the growth of B.planiculmis. The results indicated that metazosulfuron 33% WG at 99 g/hm2, halosulfuron-methyl 75% WG at 45 g/hm2, and triafamone 19% SC at 34.2 g/hm2 exhibited high control efficacy with a long-lasting herbicidal effect. At 36 days after application, these herbicides achieved plant control efficacy of 87.73% to 88.96%, fresh weight control efficacy of 90.77%-93.19%, plant height inhibition rates of 68.75% to 71.45%, and the underground rhizome budding inhibition rates of 91.74%-94.50%. Treatments with MCPA-sodium 56% SP at 630 g/hm2, pyrazosulfuron-ethyl 10% WP at 30 g/hm2, and bensulfuron-methyl 30% WP at 90 g/hm2 showed moderate weed control efficacy with shorter durations. At 36 days after application, plant control efficacy ranged from 38.96% to 49.39%, fresh weight control efficacy from 46.08% to 58.22%, plant height inhibition rates from 30.30% to 45.22%, and the underground rhizome budding inhibition rates from 25.69% to 44.95%. Meanwhile, pyraclonil 4% SC at 60 g/hm2, benzobicyclon 25% SC at 225 g/hm2, and florpyrauxifen-benzyl 3% EC at 36 g/hm2 showed poor weed control efficacy. All herbicide treatments were safe for rice growth, and treatments with metazosulfuron 33% WG at 99 g/hm2, halosulfuron-methyl 75% WG at 45 g/hm2, or triafamone 19% SC at 34.2 g/hm2 significantly enhanced rice yield. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
