植保无人机在蔗田化学除草上的应用效果

Application Effects of Unmanned Aerial Vehicle on Chemical Weed Control in Sugarcane Field

蔗田杂草对甘蔗产量有重要影响,为了探讨植保无人机在蔗田化学除草上的应用效果,用植保无人机(3WWDZ-10A)喷施900 g/L乙草胺乳油进行苗前封闭除草,喷施15%硝磺草酮悬浮剂与38%莠去津悬浮剂混配液进行苗后除草,调查杂草防除效果。结果表明,应用植保无人机飞喷乙草胺对单子叶杂草株防效与鲜重防效分别为88.46%、96.68%,双子叶杂草株防效与鲜重防效分别为90.16%、97.99%,总杂草的株防效和鲜重防效分别为89.66%、97.85%;飞喷硝磺草酮与莠去津混配液对单子叶杂草的株防效与鲜重防效分别为89.29%、86.31%,对双子叶杂草的株防效与鲜重防效分别为99.23%、97.03%,对总杂草的株防效与鲜重防效分别为96.84%、96.25%,防除效率49.95 min/hm^2。说明植保无人机进行蔗田杂草防除具有防除效果好、对甘蔗安全和作业效率高的优势。

Weeds in sugarcane field have great effects on sugarcane yield.In order to explore the control effects of unmanned aerial vehicle(UAV)spaying chemical herbicide in sugarcane field,the 3WWDZ-10A UAV was used to spray 900 g/L acetochlor(emulsifiable concentrate)before germination.The mixture of 15% mesotrione(suspension concentrate)and 38%atrazine(suspension concentrate)was sprayed by UAV after germination.After that,the control effects were investigated.The results showed that the control effects of acetochlor on plant control effect and fresh weight of monocotyledonous weed were 88.46% and 96.68%,that of dicotyledonous weed were 90.16% and 97.99%,and that of total weed were 89.66% and 97.85%,respectively.The control effects of the mixture of mesotrione and atrazine on plant control effect and fresh weight of monocotyledonous weed were 89.29% and 86.31%,that of dicotyledonous weed were 99.23% and 97.03%,and that of total weeds were 96.84%and 96.25%,respectively.The control efficiency of UAV was 49.95 min/hm^2.The applications of UAV to conduct chemical weed control had the superiorities of good control effects,high working efficiency and no damages to sugarcane.