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双三氯乙醛代脲(Dichloral Urea)为优良的除莠剂,一般在农业上叫做“实验除莠剂二号”,(Experimental Herbicide Z),简称EHZ。 本品在宽叶作物、甜菜、番茄和饲用芜菁的播种地里使用,可以有效地消灭杂草,特别重要的是它在棉花田里耕后可以消灭杂草。在生长早期,每公顷5—10公斤的药剂可以抑制杂草种子的发芽,而要抑制成熟的杂草就需较大的用量——每公顷15—50公斤。 本品对于所种植物没有毒性。1952年刻因(L.J.king)氏报导:在玉蜀黍、番茄、萝卜、棉花
Dichloral Urea is an excellent herbicide commonly known in agriculture as Experimental Herbicide Z, or EHZ for short. This product is used in broad-leaved crops, sugar beets, tomatoes and forage rapeseed sown areas, can effectively eliminate weeds, it is particularly important that it can eliminate weeds in the cotton fields. In the early stages of growth, 5-10 kilograms of pesticide per hectare can suppress the germination of weed seeds, whereas a greater amount of 15-50 kilograms per hectare is required to suppress mature weeds. This product is not toxic for the kind of plant. 1952 (L.J.king) reported: in maize, tomato, radish, cotton