4.7 Article

Better Droplet Deposition and Internode Shortening Effects of Plant Growth Regulator EDAH on Maize Applied by Small Unmanned Aerial Vehicle Than Electric Knapsack Sprayer

期刊

AGRICULTURE-BASEL
卷 12, 期 3, 页码 -

出版社

MDPI
DOI: 10.3390/agriculture12030404

关键词

EDAH; shortening internode; unmanned aerial vehicle; electric knapsack sprayer; droplet deposition

类别

资金

  1. National Key Research and Development Program of China [2017YFD0201300]
  2. Natural Science Foundation of China [31872850]

向作者/读者索取更多资源

The research compared the effectiveness of applying EDAH using UAV and EKS for controlling maize lodging. Results showed that UAV had higher droplet deposition rate, while EKS had higher droplet coverage rate and uniformity. UAV had better effects on controlling maize growth, but similar effects were detected with reduced dosage. Recommendations were provided based on lodging severity and yield concerns.
Maize (Zea mays L.) lodging is an important factor limiting its yield increase worldwide. EDAH (containing 27% ethephon and 3% DA-6) is commonly used to decrease lodging. There is an urgent need to select efficient application methods of agrochemical for better spray deposition. In our research, an unmanned aerial vehicle (UAV) (15 L ha(-1) and 30 L ha(-1)) with EDAH dosages of 72 and 90 g a.i. ha(-1), and electric knapsack sprayers (EKS) (450 L ha(-1)) with dosages of 90 g a.i. ha(-1) were used to compare the droplet deposition distribution, uniformity and maize growth. According to our research, EDAH applied by UAV had a higher droplet deposition rate than EKS; EKS had a higher droplet coverage rate, deposition density, droplet distribution uniformity. At the same dosage of EDAH, the UAV had a better effect on controlling maize growth than EKS, and almost equal effects were detected when the dosage applied by the UAVs was decreased by 20%. Considering the lodging occurrence and yield, we recommend that the dosage of EDAH applied by UAVs should be 72 g a.i. ha(-1) when there is weak lodging and 90 g a.i. ha(-1) when there is heavy lodging, with a spray volume of 15 L ha(-1).

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据