利用电流灭除杂草 最近,国外正在流行利用电流消除杂草。该法实质上是以密度大的电流通入杂草组织内,使杂草枯死。 俄罗斯切利亚宾斯克农业机械化与电气化研究所研制的一台与拖拉机编组的移动式灭草装置,是由发电机、增压变压器和电极系统组成的。当灭草机组沿着电极场移动时,在电场之间保持高电压,并与地面上的杂草和作物残茬接触。此时形成闭合电路,于是电流通入土壤内,流径杂草的茎叶和根 The use of current to eliminate weeds Recently, the current use of foreign countries to eliminate weeds. The Act is essentially a dense current into the weed organization, weeds dead. A tractor-equipped mobile plant-killing device developed by the Institute of Agricultural Mechanization and Electrification of the Chelyabinsk, Russia, consists of a generator, a booster transformer and an electrode system. As the weeder unit moves along the electrode field, a high voltage is maintained between the electric fields and comes into contact with weeds and crop residues on the ground. At this point a closed circuit is formed, whereupon current flows into the soil, the stems and leaves of the flow path weeds and roots