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本文应用土柱淋洗试验研究比较了甲磺隆可湿性粉剂和钠盐两种制剂在不同土壤中的淋洗和迁移分布。结果表明，甲磺隆钠盐由于水溶性高，其淋失率及向下层土体的迁移明显大于粉剂。两种制剂在不同土壤中的下移量，酸性的棕红壤显著高于石灰性潮土。
In this paper, soil column leaching test was used to compare the rinsing and migration of two formulations of Metsulfuron-methyl WP and sodium salt in different soils. The results showed that metsulfuron sodium salt due to high water solubility, the leaching rate and migration to the lower soil was significantly greater than the powder. The amount of down-shift of two preparations in different soils and the acidic brown-red soil were significantly higher than those of calcareous soil.