果园仿形变量喷雾与常规风送喷雾性能对比试验

为深入研究不同果园喷雾机的喷雾性能及影响规律,探究仿形变量喷雾技术在果园植保作业中的适应性,该文采用一种基于（LiD AR）扫描探测技术的果园自动仿形变量喷雾机,与常用的传统风送果园喷雾机、定向风送喷雾机进行对比,分析了3种机具的主要喷雾指标：药液消耗、冠层内部沉积、仿形喷雾效果、地面流失及空中飘移。试验结果表明：与常规喷雾方式相比,仿形变量喷雾有效地提高了农药利用率和作业效率,最多可节省药液45.7%;传统和定向风送喷雾机纵向沉积呈现从上部到下部逐渐增加的趋势,仿形变量喷雾机能够根据树冠特征实时调节喷雾参数,纵向沉积呈仿形分布;与传统风送喷雾机和定向风送喷雾机相比,仿形变量喷雾机的雾滴飘移分...

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Bibliographic Details
Published in农业工程学报 Vol. 33; no. 16; pp. 56 - 63
Main Author 李龙龙 何雄奎 宋坚利 刘杨 王志翀 李进耀 贾晓铭 刘志雄
Format Journal Article
LanguageChinese
Published 中国农业大学理学院,北京,100193%中国农业大学工学院,北京,100083%北京华凌飞驰信息科技有限公司,北京,100000 2017
Subjects
仿形喷雾
农药
变量施药
喷头
喷雾
精准施药
风送
风送
变量施药
profile modeling spray
precision applying pesticide
air assisted
variable rate spraying
spraying
喷雾
精准施药
仿形喷雾
pesticides
喷头
农药
nozzles
Online AccessGet full text
ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2017.16.008

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Summary:为深入研究不同果园喷雾机的喷雾性能及影响规律,探究仿形变量喷雾技术在果园植保作业中的适应性,该文采用一种基于（LiD AR）扫描探测技术的果园自动仿形变量喷雾机,与常用的传统风送果园喷雾机、定向风送喷雾机进行对比,分析了3种机具的主要喷雾指标：药液消耗、冠层内部沉积、仿形喷雾效果、地面流失及空中飘移。试验结果表明：与常规喷雾方式相比,仿形变量喷雾有效地提高了农药利用率和作业效率,最多可节省药液45.7%;传统和定向风送喷雾机纵向沉积呈现从上部到下部逐渐增加的趋势,仿形变量喷雾机能够根据树冠特征实时调节喷雾参数,纵向沉积呈仿形分布;与传统风送喷雾机和定向风送喷雾机相比,仿形变量喷雾机的雾滴飘移分别减少23.2%和42.7%,地面流失分别减少67.4%和58.8%。该研究为果树病虫害防治减量施药提供新方法与新装备,为精准植保机具的结构设计和性能优化提供参考。
Bibliography:At present,most of air assisted orchard sprayers adopt the continuous spray operation method,resulting in significant loss of pesticides and contamination of the environment.In order to improve the automatic working performance of orchard sprayer,an automatic profiling orchard sprayer based on LiD AR（light detection and ranging）sensor was developed.Electromagnetic valve and brushless fan were adopted as actuators to control the flow rate and air volume based on the pulse width modulation（PWM）signals.The flow rate and air flow could be controlled by the controller based on the canopy volume and leaf density.To explore the variable rate prototype＇s application effects,2 conventional orchard sprayers with central fan were selected as reference sprayers for comparison in this paper.The first type was a conventional air blast sprayer（CABS）,which was the most widely used in China;the second reference machinery was a directed air-jet sprayer（DAJS）equipped with a centrifugal fan and 4 individual air spouts on each si
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2017.16.008