Pc (percent concentration): indicates the percentage of the active ingredient in the drug; ppm (parts per million): eg 1 ppm (can also be written in ppm), is 1 part per million; ec (effective concentration): can prevent Objects, such as pests, pathogens, or weeds, that are poisonous to the crop, and harmless to the crop; lc (lethal concentration): the concentration that causes the death of the test animal, expressed in ppm; mec (maximum effective concentration): for the pest Must have control effect, and the maximum concentration of pharmaceutical agent harmless to crops; g (g) (granules): Adhere to or contain a certain amount of pharmaceuticals, with long efficacy, easy to use, less dust flying, and the safety of beneficial insects; Dp (powder): fine powdered pesticides with certain specifications and contents can only be used for dusting or seed dressing, baits, etc.; kg (ha) (application amount): It is the number of kilograms of pesticide that can be applied per hectare of farmland.
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