摘要
在小麦吸浆虫的防治中初次应用了小型无人机进行低空喷洒。研究结果表明:小型无人机低空喷洒,雾滴在小麦植株的沉积分布密度为穗部>中部(倒三叶)>下部(倒二叶);采用离心式转盘喷头喷雾,雾滴在小麦穗部的平均沉积密度达到12.4个/cm2,是液力式喷头的1.5倍。小型无人机采用离心式转盘喷头喷洒2.5%联苯菊酯超低容量剂1 500mL/hm2对水6 000mL/hm2喷雾,其对小麦吸浆虫的防治效果达到81.6%。总体上看,采用离心式转盘喷头小型无人机进行低空喷洒优于液力式喷头。
Field trials of application of UAV spraying against wheat midge were carried out in 2012. Results showed that：When using centrifugal atomizer to spray,the average droplet density on wheat head was 12.4cm2, 1.5 times more than hydraulic nozzle. The droplets deposited on wheat head were denser than on middle and lower leaves. The control effect of 2.5% Bifenthrin ULV against wheat midge was 81.6% at the dose of 1500mL/hm2 diluted with 6000mL/hm2 water. In summary, The performance of using centrifugal atomizer in UAV was better than using hy- draulic nozzle.
出处
《作物杂志》
CAS
CSCD
北大核心
2013年第2期139-142,共4页
Crops
基金
公益性行业(农业)科研专项(200903033)
