二化螟是我国水稻上危害最为严重的常发性害虫之一,由于常年防治水稻二化螟以化学农药为主,不但污染了环境,影响了稻米质量,还导致二化螟抗药性的产生。为探索生物农药短稳杆菌对水稻二化螟的防治效果,特进行了多点试验与示范。试验结...二化螟是我国水稻上危害最为严重的常发性害虫之一,由于常年防治水稻二化螟以化学农药为主,不但污染了环境,影响了稻米质量,还导致二化螟抗药性的产生。为探索生物农药短稳杆菌对水稻二化螟的防治效果,特进行了多点试验与示范。试验结果表明:生物农药100亿孢子/m L短稳杆菌对水稻二化螟的防治效果较好,每公顷用量1 500 m L平均防效85%以上,可与48%毒死蜱、20%氯虫苯甲酰胺等化学农药媲美,可在水稻二化螟的防治中广泛推广应用。展开更多
With changing climate and farmland ecological conditions,pest outbreaks in agricultural landscapes are becoming more frequent,increasing the need for improved crop production tools and methods.UAV-based agricultural s...With changing climate and farmland ecological conditions,pest outbreaks in agricultural landscapes are becoming more frequent,increasing the need for improved crop production tools and methods.UAV-based agricultural spraying is anticipated to be an important new technology for providing efficient and effective applications of crop protection products.This paper reviews and summarizes the status of the current research and progress on UAV application technologies for plant protection,and it discusses the characteristics of atomization by unmanned aircraft application systems with a focus on spray applications of agrichemicals.Additionally,the factors influencing the spraying performance including downwash airflow field and operating parameters are analyzed,and a number of key technologies for reducing drift and enhancing the application efficiency such as remote sensing,variable-rate technologies,and spray drift models are considered.Based on the reviewed literature,future developments and the impacts of these UAV technologies are projected.This review may inspire the innovation of the combined use of big data analytics and UAV technology,precision agricultural spraying technology,drift reduction technology,swarm UAV cooperative technology,and other supporting technologies for UAV-based aerial spraying for scientific research in the world.展开更多
文摘二化螟是我国水稻上危害最为严重的常发性害虫之一,由于常年防治水稻二化螟以化学农药为主,不但污染了环境,影响了稻米质量,还导致二化螟抗药性的产生。为探索生物农药短稳杆菌对水稻二化螟的防治效果,特进行了多点试验与示范。试验结果表明:生物农药100亿孢子/m L短稳杆菌对水稻二化螟的防治效果较好,每公顷用量1 500 m L平均防效85%以上,可与48%毒死蜱、20%氯虫苯甲酰胺等化学农药媲美,可在水稻二化螟的防治中广泛推广应用。
基金The authors gratefully acknowledge the support provided by the National Key Research and Development Program of China(Grant No.2016YFD0200606,Grant No.2018YFD0200700)China Agriculture Research System(Grant No.CARS-15-22).
文摘With changing climate and farmland ecological conditions,pest outbreaks in agricultural landscapes are becoming more frequent,increasing the need for improved crop production tools and methods.UAV-based agricultural spraying is anticipated to be an important new technology for providing efficient and effective applications of crop protection products.This paper reviews and summarizes the status of the current research and progress on UAV application technologies for plant protection,and it discusses the characteristics of atomization by unmanned aircraft application systems with a focus on spray applications of agrichemicals.Additionally,the factors influencing the spraying performance including downwash airflow field and operating parameters are analyzed,and a number of key technologies for reducing drift and enhancing the application efficiency such as remote sensing,variable-rate technologies,and spray drift models are considered.Based on the reviewed literature,future developments and the impacts of these UAV technologies are projected.This review may inspire the innovation of the combined use of big data analytics and UAV technology,precision agricultural spraying technology,drift reduction technology,swarm UAV cooperative technology,and other supporting technologies for UAV-based aerial spraying for scientific research in the world.
