| 用P20型植保无人机减量施药防治稻纵卷叶螟 |
| |
| 引用本文： | 曾文,邓继忠,高启超,贾瑞昌,兰玉彬,张建瓴,陈鹏超,肖汉祥,张亚莉.用P20型植保无人机减量施药防治稻纵卷叶螟[J].农业工程学报,2021,37(15):53-59. |
| |
| 作者姓名： | 曾文 邓继忠 高启超 贾瑞昌 兰玉彬 张建瓴 陈鹏超 肖汉祥 张亚莉 |
| |
| 作者单位： | 1. 华南农业大学工程学院，广州 510642; 2. 国家精准农业航空施药技术国际联合研究中心，广州510642;;2. 国家精准农业航空施药技术国际联合研究中心，广州510642; 3. 华南农业大学电子工程学院，广州 510642;;4. 广东农业科学研究院植物保护研究所，广州 510640; |
| |
| 基金项目： | 国家重点研发计划（2018YFD0200304）；广东省重点领域研发计划（2019B020221001）；广东省科技计划项目（2018A050506073）；广东省现代农业产业共性关键技术研发创新团队项目（2020KJ133）；广州市科技计划项目（201807010039）；高等学校学科创新引智计划（D18019） |
| |
| 摘 要： | 为探讨植保无人机（UAV）减量施药对水稻病虫害的防治效果，该研究采用P20型植保无人机进行水稻田间施药作业。分别在水稻分蘖末期、孕穗期开展了两种施药液量（15、22.5 L/hm2）的水稻冠层雾滴沉积试验，以及两种施药液量下480、540、600 mL/hm2 3种农药剂量（阿维·氯苯酰推荐剂量的80%、90%、100%）的防治稻纵卷叶螟减量施药田间药效试验，并与背负式电动喷雾器（Knapsack Electric Sprayer，KES）人工施药的常规防治方法进行施药效果对比。雾滴沉积试验结果表明，水稻冠层上部的雾滴分布均匀性优于水稻冠层下部；施药液量15、22.5 L/hm2的冠层上部雾滴沉积有显著差异，且施药液量22.5 L/hm2的冠层上部雾滴沉积显著优于施药液量15 L/hm2。药效试验结果表明，农药剂量越大稻纵卷叶螟防治效果越好，采用农药剂量100%的植保无人机施药防治效果最好，并优于KES人工施药；施药液量15、22.5 L/hm2的稻纵卷叶螟防治效果有显著差异，且施药液量22.5 L/hm2较15 L/hm2的防治效果更好；处理T2（施药液量15 L/hm2、农药剂量90%）、处理T4（施药液量22.5 L/hm2、农药剂量80%）与KES人工施药的防治效果没有显著差异。采用植保无人机施药防治稻纵卷叶螟，施药液量22.5 L/hm2可以获得更好的雾滴沉积和稻纵卷叶螟防治效果；施药液量22.5 L/hm2时，减少20%的农药剂量也能保证稻纵卷叶螟防治效果。该结果对水稻田间植保无人机减量施药具有实践指导意义。
|
| 关 键 词： | 无人机 喷雾 减量施药 雾滴沉积 稻纵卷叶螟 |
| 收稿时间： | 2021/4/23 0:00:00 |
| 修稿时间： | 2021/7/21 0:00:00 |
P20 plant protection UAV to control cnaphalocrocis medinalis by reduced pesticide application |
| |
| Zeng Wen,Deng Jizhong,Gao Qichao,Jia Ruichang,Lan Yubin,Zhang Jianling,Chen Pengchao,Xiao Hanxiang,Zhang Yali.P20 plant protection UAV to control cnaphalocrocis medinalis by reduced pesticide application[J].Transactions of the Chinese Society of Agricultural Engineering,2021,37(15):53-59. |
| |
| Authors: | Zeng Wen Deng Jizhong Gao Qichao Jia Ruichang Lan Yubin Zhang Jianling Chen Pengchao Xiao Hanxiang Zhang Yali |
| |
| Institution: | 1. College of Engineering, South China Agricultural University, Guangzhou 510642, China; 2. National Center for International Collaboration Research on Precision Agricultural Aviation Pesticides, Spraying Technology , South China Agricultural University, Guangzhou 510642, China;;2. National Center for International Collaboration Research on Precision Agricultural Aviation Pesticides, Spraying Technology , South China Agricultural University, Guangzhou 510642, China; 3. College of Electronics Engineering, South China Agricultural University, Guangzhou 510642, China;;4. Plant Protection Institute, Guangdong Agricultural Science Academy, Guangzhou 510640, China; |
| |
| Abstract: | Plant protection unmanned aerial vehicles (UAV) have widely been applied for rice diseases and pest control in China. This study aims to promote the reduced application of pesticides in rice, thereby exploring the control efficacy of pests and diseases using plant protection UAV. A field experiment was also conducted using a P20 quad-rotor plant protection UAV with a centrifugal spray system at the late tillering and booting stage of rice. A droplet deposition experiment of rice canopy was performed on two spray volume levels of 15 and 22.5 L/hm2. Three levels of pesticide dosage were determined to be 480, 540, and 600 mL/hm2 (80%, 90%, and 100% of recommended dosage) for the cnaphalocrocis medinalis control efficacy with the same two spray volume levels (15, and 22.5 L/hm2). Meanwhile, a pesticide spraying test was conducted with a knapsack electric sprayer (KES) for comparison as well. The droplet deposition test showed that the droplet was evenly distributed in the upper-canopy, better than that in the lower-canopy. There was an extreme difference in the droplet deposition on the upper- and lower-canopy of rice at the same spray period and spray volume. In particular, the droplet deposition on the upper-canopy was much larger than that on the lower-canopy. There were also significant differences among the droplet deposition on the upper-canopy between 15 and 22.5 L/hm2. Compared with that of 15 L/hm2, the spray volume of 22.5 L/hm2 increased the droplet deposition on the upper-canopy by 64.77%, and 60.53% at the late tillering and booting stage, respectively. Nevertheless, there was no significant difference among the droplet deposition of upper- and lower-canopy between the late tillering and the booting stage. The control efficacy test showed that the pesticide dosage presented a great effect on the control efficacy of cnaphalocrocis medinalis, indicating that the larger pesticide dosage achieved better, where the control efficacy of 100% pesticide dosage was the best. Specifically, the control efficacy of plant protection UAV was better than that of KES at the same pesticide dosage. There was a significant difference in the control efficacy between the spray volume of 15 and 22.5 L/hm2. The control efficacy at the late tillering and booting stage with 22.5 L/hm2 increased by 21.51% and 7%, respectively, compared with 15 L/hm2. No significant difference was found on the control efficacy in the treatment of spray volume 22.5 L/hm2 and pesticide dosage 80%, spray volume 15 L/hm2 and pesticide dosage 90%, as well as KES application. The plant protection UAV with a spray volume of 22.5 L/hm2 achieved better droplet deposition on the upper-canopy, and higher control efficacy. Additionally, a spray volume of 22.5 L/hm2 and pesticide dosage of 80% achieved the same cnaphalocrocis medinalis control efficacy as that with the KES with the pesticide dosage of 100%. This finding can provide a sound reference to the parameters set for the plant protection UAV spraying pesticides, thereby promoting the reduction of pesticides in rice. |
| |
| Keywords: | UAV spray reduced pesticide application droplet deposition cnaphalocrocis medinalis |
|
| 点击此处可从《农业工程学报》浏览原始摘要信息 |
| 点击此处可从《农业工程学报》下载免费的PDF全文 |
|
