2-甲基-4,6-双(三氯甲基)均三嗪简称氯甲嗪,是我省蚌埠化工研究所研制成功的一个氮肥增效剂的新品种。与氮肥拌合施用,可以提高氮肥肥效,促使作物增产增收。为鉴定氯甲嗪的施用效果,自1975年起,连续地进行了四年试验。试验在我所及我场若干大、中生产队进行。土质 2-methyl-4,6-bis (trichloromethyl) -s-triazine, referred to as chlormetrine, is a new variety of nitrogenous fertilizer synergist successfully developed by Bengbu Chemical Research Institute in our province. Mixing with nitrogen fertilizer, nitrogen fertilizer can improve efficiency and promote crop yield increase. To identify the effect of chlormezidine, a four-year trial has been conducted continuously since 1975. The trial was conducted in a number of large and medium-sized production teams in our institute and in my own field. Soil