CAJ | 학술논문

为了避免农药灭虫带来的残留危害,该文提出了用高压静电放电杀灭烤烟植株害虫烟蚜的方法.设置了传统农药灭虫和高压静电放电灭虫的试验对比.试验结果表明,高压静电放电法灭虫率可达70.38%~78.73%,虽低于农药灭虫,但无毒无害,且对天敌瓢虫的影响不大.在试验基础上,进行了高压静电农作物灭虫的参数优化,通过正交优化,确定了优化的灭虫电压50 kV、灭虫时间3 s和灭虫距离15 mm,在优化参数下烟蚜杀灭率平均值可达83%.研究结果为高压静电农作物灭虫器的研制提供技术依据.
위료피면농약멸충대래적잔류위해,해문제출료용고압정전방전살멸고연식주해충연아적방법.설치료전통농약멸충화고압정전방전멸충적시험대비.시험결과표명,고압정전방전법멸충솔가체70.38%~78.73%,수저우농약멸충,단무독무해,차대천활표충적영향불대.재시험기출상,진행료고압정전농작물멸충적삼수우화,통과정교우화,학정료우화적멸충전압50 kV、멸충시간3 s화멸충거리15 mm,재우화삼수하연아살멸솔평균치가체83%.연구결과위고압정전농작물멸충기적연제제공기술의거.
To avoid the hazards of pesticide residues, high-voltage electrostatic discharge was recommended to kill tobacco aphid. The pest control effects via the traditional pesticides and high-voltage electrostatic discharge were compared. The test apparatus of high voltage electrostatic disinsection is adjustable from 20 to 60 kV high voltage. The initial test voltage is 40 kV, and the probe scanning distance is 25 mm. The probe terminals were to scan the tobacco leaves from its bottom to top, close to the tobacco leaves surface. Since disturbance of the probe, the front and back of the tobacco leaves were all in the electric field. The scan time is about 1-2 s. For the traditional pesticide pest control, the pesticide “KANGFUDUO”with a concentration of 20%diluting for 4000 times was used. The conventional spraying method was employed, 750 liters per hectare of water consumption. The test plot is 330 m2 and divided into three blocks with an isolation belt of 2 meters in width for each two blocks. Each block of field was with 200 plants with a plant spacing of 0.55 meter and the line spacing of 1.1 meter. One block was subjected to electrostatic pest control, one was to undergo pesticide pest control, and the remaining block was arranged for reference. Listed sampling method was used for the electrostatic pest control, pesticide pest control, as well as the reference block and the number of the aphid was nearly the same. 3 replicates were conducted and data were averaged. The height of the test tobacco plant is 1.2 to 1.5 meters, 12 to 14 leaves. The trial was conducted during 10 consecutive sunny days. The types and quantities of field pests before pest control test were investigated and recorded. The pest control effects were analyzed after treatment for 1 day, 5 days and 9 days, respectively. The study shows that the rate of pest control by using high voltage electrostatic discharge method was up to 70.38%-78.73%, lower than the pesticide pest control(92.97%-95.96%), yet it is non-toxic, and has little effect on the natural enemies of the ladybug. On the basis of the experimental data, a high-voltage electrostatic crop pest control parameters were optimized, which provides a technical basis for the design and manufacture of high-voltage electrostatic crop pest control machine. To 1 day of pest control effect treated as a target, L9 (33) orthogonal tables were arranged, 3 factors are test voltage (A), scan time (B) and scanning distance (C). Through orthogonal optimization, the optimal pest control voltage (50 kV), pest control time (3 s) and pest control distance (15 mm) were determined. The aphid-killing rate with the optimal parameters is up to 83%.