Design and experimental evaluation of a variable pesticide application control system for the air-assisted rubber tree powder sprayer

被引：1

作者：

Wang, Yong ^{[1
]}

Zhang, Huiming ^{[1
]}

Fu, Meng ^{[1
]}

Fu, Wei ^{[1
,2
]}

Wang, Juan ^{[1
,2
]}

Zhang, Bin ^{[1
,2
]}

Fu, Yuxing ^{[1
,2
]}

Zeng, Tiwei ^{[1
,2
]}

机构：

[1] Hainan Univ, Mech & Elect Engn Coll, Haikou 570228, Peoples R China

[2] Hainan Univ, Sch Informat & Commun Engn, Haikou, Hainan, Peoples R China

来源：

PEST MANAGEMENT SCIENCE | 2024年 / 80卷 / 10期

基金：

中国国家自然科学基金;

关键词：

rubber tree; air-assisted powder sprayer; variable pesticide application decision-making model; control system; TECHNOLOGY; VOLUME;

D O I：

10.1002/ps.8246

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

BACKGROUNDIn order to address the issues of uneven pesticide deposition and low pesticide utilization in rubber gardens caused by the traditional diffuse plant protection spraying method, this study focuses on the air-assisted powder sprayer and proposes a variable pesticide application control system. A variable pesticide application decision-making model integrating the leaf area index (LAI) was designed based on powdery mildew control standards and individual rubber tree information. According to the target powder spraying accuracy requirements, a control model of the air velocity adjustment device was established and a fuzzy proportional-integral-differential (PID) air velocity control system was developed.RESULTSThe simulation results indicate that the wind speed control system exhibits a maximum overshoot of 2.18% and an average response time of 1.48 s. The field experiment conducted in a rubber plantation revealed that when the air-assisted powder sprayer operates in the variable powder spraying mode, the average response time of the control system is 2.5 s. The control accuracy of each executive mechanism exceeded 95.9%. The deposition coefficient of variation (CV) at different canopy heights was relatively consistent, with values of 35.38%, 36.26% and 36.90%. In comparison to the quantitative mode, the variable mode showed a significant 20.03% increase in the effective utilization rate of sulfur powder.CONCLUSIONThese research findings provide valuable technical support for the advancement of mechanized variable powder spraying equipment in rubber tree cultivation. (c) 2024 Society of Chemical Industry. We developed a variable control system for the air-assisted powder sprayer and achieved precise on-target spraying of sulfur powder using a variable pesticide application decision-making model. image

引用

页码：5186 / 5199

页数：14