Control Effect of Different Spray Amounts of Unmanned Aerial Vehicle on Soybean Weeds
[Objective] The aim was to study control effect of different spray amounts of unmanned aerial vehicle on annual gramineous weeds in soybean field.[Method] Taking constant spray of knapsack electrostatic sprayer as control,we studied control effect of different spray amounts of 5% quizalofop-PEC sprayed by unmanned aerial vehicle on annual gramineous weeds in soybean field.[Result] The dosage of 5% quizalofop-PEC was 1 050 mL/hm2,the unmanned aerial vehicle at spray amount of 7 500-12 000 mL/hm2 was safe to soybean,and the unmanned aerial vehicle at spray amount of 9 000 and 10 500 mL/hm2 had good control effect on annual gramineous weeds in soybean field,which was equal to the control effect of knapsack electrostatic sprayer at spray amount of 450 kg/hm2.[Conclusion] The results provide theoretical basis for extensive application of unmanned aerial vehicle.
国家科技期刊平台
NSTL
万方数据
维普
