【摘 要】
：
There are many kinds of quantitative analysis methods of pesticide deposition on target surface,which can be divided into chemical analysis,fluorescence analysis and colorimetric analysis.The Chemical
【机 构】
：
College of Science,China Agricultural University,Beijing 100193,China
论文部分内容阅读
There are many kinds of quantitative analysis methods of pesticide deposition on target surface,which can be divided into chemical analysis,fluorescence analysis and colorimetric analysis.The Chemical analysis method mainly uses chromatography to quantitate pesticide deposition directly,however,it has many drawbacks.The result of this method is very accurate,but the pre-treatment which requiring higher equipment is quite complex and measurement efficiency is quite low.
其他文献
无人机(UAV,Unmanned Aerial Vehicle)是一种无人驾驶的可由遥控或程序自动控制的飞行器,具有灵活,机动性强等特点,越来越多的行业涉及到无人机的应用,尤其在农业中的农药喷洒,农情遥感分析等方面起到重要作用,为使无人机更高效、更安全的工作,该项目是无人机系统的核心,飞行管控系统自身可以将飞行数据进行记录并解析,进一步检验飞行品质.并对无人机飞行状态及任务载荷进行有效监控,并由此
近几年,农业航空发展迅速,越来越成为发展精准农业的重要作业模式.针对中国复杂的作业环境和多样化的土地分布,一些地面播种机械开始暴露自身的局限性,农用飞机的出现解决了地面机械难以企及的场所的作业问题,不仅提高了作业效率,而且极大地推动和改善了田间作业的模式和方法.然而,中国还有相当一部分较分散的沼泽、滩涂地区,尤其是丘陵,深泥脚田区域,以及防风林、居民区等受空间限制的区域化的场所,大型农用飞机还是很
随着农业机械化水平的不断提升,农业航空作业也向精准化、规模化、高效化方向发展.其中超低容量施药设备、抗蒸发抗飘移高浓度药剂以及无人机的载重续航能力的快速发展,使得单机的作业速度、作业范围以及作业量大幅提升.无人机数据链路是指作业无人机与地面站以及指挥站通信连接,现有的数据链路大多为地面站与无人机点对点通信,随着作业范围提升,原有通信方式极大地制约了作业效率的进一步提升,自动化作业对飞行器实现超视距
通过不同杀螨剂施药剂量的比较、不同助剂的作用效果以及传统植保机械与植保无人机施用杀螨剂在防治棉叶螨的效率、效果之间的差异,验证无人机施药的效果,筛选无人机施药的高效杀螨剂品种和最经济有效的施药剂量,为无人机植保技术的推广应用提供科学依据.结果表明:22％阿维·螺螨酯悬浮剂和40％丁醚脲·哒螨灵杀螨剂30ml/667m2-50ml/667m2处理均表现出了较好的速效性与持效性,对棉花安全.40％丁醚
小型无人直升机作为一种及时有效的施药机具,具有施药效率高、不损伤作物的优势,特别适合在亚洲等国家的小块田地和丘陵山区进行喷洒作业,近年来已成为中国农药使用的重要新型技术.本文研究了小型无人机(P20-1UAV)喷洒参数(不同作业高度和不同喷洒浓度)对小麦冠层雾滴沉积分布和白粉病防效的影响.利用水敏纸作为雾滴取样器采集农药雾滴,并通过Deposit Scan图像处理软件统计了雾滴在小麦冠层的覆盖率,
Unmanned Aerial Vehicle (UAV) which is originally used in military,currently is widely used in agriculture such as for monitoring the field,pest and disease infestation inspection,irrigation managemen
近年来无人机作为一种新型药械发展迅速,为了研究使用植保无人机喷施棉花脱叶剂在田间的实际效果以及施药因素、雾滴覆盖率对脱叶效率的影响,本文开展了棉花脱叶田间药效试验.结果表明:药后10d,在5个80％脱吐隆悬浮剂施药浓度中,10g/667㎡和14g/667㎡两个处理校正脱叶率最佳,分别达到77％和84％.200ml/667㎡-3200ml/667㎡的5个不同药液量处理间在药后10d的校正脱叶率并无显
In order to explore the effect of flight parameters and other factors on unmanned aerial vehicle(UAV)spatial pesticide spraying deposition distribution and rotors downwash flow field distribution,the
Many studies have been directed towards surface tension and formulations of spray liquids,while viscosity as a major part of spray liquid properties little work has been done to study the influence of
there is an urgent need for new chemical application techniques and sprayers in Chinese orchard spraying,because of the requirements of environment pollution,safety for food and operator during chemic