摘要
为了研究植保无人机对水稻纹枯病施药作业的效果,为植保无人机开展大面积作业提供依据,在汨罗市古培镇水稻田对比了极飞P20植保无人机、担架式机动喷雾器和背负式电动喷雾器3种方式喷施27.8%噻呋·己唑醇悬浮剂对水稻纹枯病的防治效果。结果表明,用药量为20、18和16 g/667m^(2)的植保无人机处理对水稻纹枯病的病指防效分别为92.35%、91.22%和83.26%,用药量为20 g/667m^(2)的担架式喷雾器和背负式电动喷雾的防效分别为92.22%和87.89%。综合考虑3种药械的防治效果、成本、作业效率及安全性等因素,用药量为18 g/667m^(2)的极飞P20植保无人机处理防治水稻纹枯病的效果最佳,防治效果达91.95%,在减少农药使用量10%的情况下与常规喷雾器施药防治效果相当,且节水率达98%以上,同时可明显提高作业效率,降低劳动强度,更加符合现代植保发展方向和理念。
In order to study the effect of plant protection unmanned aerial vehicle on the control of rice sheath blight,and provide basis for large area operation of plant protection UAV,the control effects of thifluzamide·hexaconazole 27.8%SC on rice sheath blight were compared in the paddy field of Gupei Town,Miluo,by using XAG P20 plant protection UAV,stretcher motor sprayer and back-loaded electric sprayer.The results showed that the disease index control efficacy of 300,270 and 240 g/hm^(2)of thifluzamide·hexaconazole 27.8%SC via plant protection UAV were 92.35%,91.22%and 83.26%,respectively.The control effects of the dosage 300 g/hm^(2)via stretcher motor sprayer and back-loaded electric sprayer were 92.22%and 87.89%,respectively.Considering the control effect,cost,operation efficiency and safety,adopting XAG P20 plant protection UAV with the dosage 270 g/hm^(2)for the control of rice sheath blight was the optimal whose control effect reached 91.95%;even the dosage of the fungicide was reduced by 10%,its control effect was equivalent to that via the conventional sprayer,furthermore the water saving rate was more than 98%;at the same time,it can significantly improve the operation efficiency and reduce the labor intensity,which is more in line with the development direction and concept of modern plant protection.
作者
荀栋
何家乐
陈木森
杨浩娜
潘乐
XUN Dong;HE Jia-le;CHEN Mu-sen;YANG Hao-na;PAN Le(Miluo Plant Protection and Quarantine Station,Miluo 414400,PRC;Hunan Agricultural Biotechnology Institute,Changsha 410125,PRC;Hunan Gucheng Agricultural Development Co.,Ltd,Miluo 414400,PRC)
出处
《湖南农业科学》
2021年第8期52-55,共4页
Hunan Agricultural Sciences
