| 张路生1, 于晓庆2, 邵玉丽3, 金宗亭1, 周江明4, 常慧红1, 谢英杰1, 韩小伟4, 何 川3, 田雪慧4*.植保无人机对大豆-玉米带状复合种植播后苗前喷雾的雾滴沉积特性及除草效果[J].植物保护,2025,51(1):327-333. |
| 植保无人机对大豆-玉米带状复合种植播后苗前喷雾的雾滴沉积特性及除草效果 |
| Droplets deposition of herbicide by plant-protection UAV and control effect in soybean-maize strip intercropping after sowing and before seedling |
| 投稿时间：2024-01-23 修订日期：2024-03-19 |
| DOI：10.16688/j.zwbh.2024044 |
| 中文关键词: 植保无人机 大豆-玉米带状复合种植 杂草防效 雾滴沉积特性 |
| 英文关键词:plant-protection UAV soybean-maize strip intercropping 〖JP2〗weed control effect droplets deposition |
| 基金项目: |
| 作者 | 单位 | E-mail | | 张路生1, 于晓庆2, 邵玉丽3, 金宗亭1, 周江明4, 常慧红1, 谢英杰1, 韩小伟4, 何 川3, 田雪慧4* | 1. 滨州市农业技术推广中心, 滨州 256600
2. 山东省农业技术推广中心, 济南 250000
3. 滨州市滨城区农业技术推广中心, 滨州 256600
4. 滨州市农业科学院, 滨州 256600 | t18864805655@163.com |
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| 中文摘要: |
| 为明确适合应对大豆-玉米带状复合种植杂草发生特点的植保无人机作业参数, 本文采用两因素三水平试验设计, 探究不同喷液量和雾滴粒径下的药液沉积效果及对杂草防效?结果表明, 当喷液量一定时, 200~400 μm范围内, 粒径越大, 雾滴覆盖率和沉积量也随之增大, 而雾滴密度随之减小, 杂草防效提高; 当雾滴粒径一定时, 喷液量越大, 雾滴覆盖率?密度和沉积量都随之增大, 杂草防效也提高?当喷液量为45.0 L/hm2?粒径400 μm时, 防效最高, 40%砜吡草唑SC 375 mL/hm2+480 g/L嗪草酮SC 600 mL/hm2处理后20 d, 对禾本科和阔叶类杂草的株防效分别可达98.88%和100.00%, 药后35 d, 对禾本科和阔叶类杂草的株防效分别为97.62%和75.56%, 鲜重防效分别为98.92%和99.02%?因此, 在利用植保无人机对大豆-玉米带状复合种植田进行播后苗前除草时, 适当增大喷液量和雾滴粒径, 有利于提高除草效果? |
| 英文摘要: |
| This study aimed to determine suitable operation parameters for plant-protection unmanned aerial vehicles (UAVs) in managing weeds within soybean-maize strip intercropping systems. Using a two-factor, three-level experimental design, the effect of various spray volumes and droplet sizes on droplet deposition and weed control efficiency were examined. The results showed that under a fixed spray volume, increased droplet size (200-400 μm) improved both droplet coverage and deposition while reducing droplet density and enhancing weed control. For a constant droplet size, higher spray volumes increased coverage, density and deposition, leading to better control effect. Optimal results were achieved with a spray volume of 45.0 L/hm2 and a droplet size of 400 μm. Twenty days post-application of 40% pyroxasulfone SC (375 mL/hm2) and 480 g/L SC metribuzin (600 mL/hm2), control effectiveness on gramineous and broad-leaved weeds reached 98.88% and 100.00%, respectively. After 35 days, control effectiveness on gramineous and broad-leaved weeds was 97.62% and 75.56%, respectively, and by fresh weight was 98.92% and 99.02%. Therefore, increasing spray volume and droplet size can thus enhance weed control when using UAVs for post-sowing, pre-emergence herbicide applications in soybean-maize strip intercropping systems. |
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