西玛津、阿特拉津都属于均三氮苯类除草剂,其杀草机制主要是通过杂草叶子或根部(大部分是叶子)吸收药剂,从而抑制了杂草的光合作用,导致植株因饥饿而死亡。由于药剂水溶性较差,被土壤吸附后具有较高的固定性,在土壤中的残效期也较长,可达二个月到二年之久,但随气候条件、土壤状况及药量的不同其残效期也不相同。在江、浙一带茶园使用,一般残效期在二一三个月,而在东北地区旱地使用西玛津,由于气候寒冷药剂分解缓慢,残效期可长达二年。 Simazine and atrazine are all triazine-based herbicides. Their mechanism of herbicidal action is mainly to absorb the photosynthesis of weeds through the leaves or roots (mostly leaves) of weeds and thus inhibit the photosynthesis of the plants Died of hunger Due to the poor water-solubility of drugs, the soil after adsorption has high immobility, the residual effect in the soil is longer, up to two months to two years, but with the climatic conditions, soil conditions and dose Different residual period is not the same. In the rivers and lakes, the tea plantation is used in the past two to three months. In the northeastern region, Simazine is used in the drylands. Due to the slow decomposition of cold agents in the climate, the residual effect can last up to two years.