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苏联列宁格勒市蔬菜研究所,近年来研制成一种高频电流犁。用它来耕翻土地,可除草、灭虫,使用效果很好。其工作原理是:在犁上装一个高频电流发生器,耕翻时会向土壤发出一种高频电流,可杀死杂草和虫卵。试验证明,经过这种高频电
Leningrad City, the Soviet Union Vegetable Research Institute, developed in recent years into a high-frequency current plow. Use it to tillage the land, weeding, pest control, the use of good results. Its working principle is: in the plow mounted a high-frequency current generator, when plowing will send a high-frequency current to the soil, can kill weeds and eggs. Test proved that after this high-frequency electricity