| 黄瓜叶片喷雾药液持留量试 |
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| 引用本文： | 陆军,贾卫东,邱白晶,李萍萍.黄瓜叶片喷雾药液持留量试[J].农业机械学报,2010,41(4):60-64. |
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| 作者姓名： | 陆军 贾卫东 邱白晶 李萍萍 |
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| 作者单位： | 江苏大学现代农业装备与技术省部共建教育部重点实验室/江苏省重点实验室,镇江,212013 |
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| 基金项目： | 国家自然科学基金，国家"863"高技术研究发展计划资助项目，江苏省自然科学基金，江苏省普通高校研究生科研创新计划资助项目 |
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| 摘 要： | 为研究喷雾药液在靶标植株黄瓜叶片上的流失点与最大稳定持留量,以炮塔式压力雾化轴流风送高压静电喷雾系统为试验平台,采用微称量法对其进行了测量.引用润湿方程的基本理论,对影响持留量的因素(喷雾距离、雾滴叶面接触角及施药量)进行了分析,探讨各因素对药液持留量的影响规律.试验结果表明:随着喷雾距离的增加,药液在黄瓜叶片上的流失点和最大稳定持留量先上升后下降,最大值均出现在距离喷头125cm处;药液雾滴在黄瓜叶片上的接触角θ、粘附张力β、粘附功W_a和临界表面张力γ_0的稳定值分别为85.07°、6.17mN/m、77.97mJ/m~2、61.23mN/m;黄瓜叶片持留量在施药量为1.26～3.36kL/hm~2范围内出现峰值,超过该范围后持留量随着施药量的增加而减少并逐渐趋于稳定.
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| 关 键 词： | 高压静电喷雾 流失点 最大稳定持留量 接触角 施药量 |
on Retention of Spray Liquid on Cucumber Leaves |
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| Lu Jun Jia Weidong Qiu Baijing Li Pingping.on Retention of Spray Liquid on Cucumber Leaves[J].Transactions of the Chinese Society of Agricultural Machinery,2010,41(4):60-64. |
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| Authors: | Lu Jun Jia Weidong Qiu Baijing Li Pingping |
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| Institution: | Key Laboratory of Modern Agricultural Equipment and Technology/a>;Ministry of Education & Jiangsu Province/a>;Jiangsu University/a>;Zhenjiang 212013/a>;China |
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| Abstract: | With the aim to study the point of run-off and the maximum retention of spray liquid on cucumber leaves in greenhouse,the spraying experiment was performed with various charged voltage and spray volume.Taking the barbette model pressure atomization axial-flow air-carried high-voltage electrostatic spraying system as the experiment platform,the retention volume on cucumber leaves surface was measured by micro-weighing method.The factors on the retention volume were analyzed based on basic theory of Young' s ... |
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| Keywords: | High-voltage electrostatic spray Point of run-off Maxium retention Contact angle Spray volume |
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