恶草灵(Oxadiazon),是芽前和芽后的除草剂。它通过杂草种子萌芽接触土壤药剂或杂草幼苗吸收药剂起作用。它在许多作物中(甘蔗、水稻、棉花、大豆等)都具有它的选择性。为了探明恶草灵在湘北蔗田杂草的防除效果及对甘蔗经济性状的变化,我所于1984～1986年在露地蔗和地膜蔗中进行了试验研究,现将试验结果整理如下: Oxadiazon, a pre-emergent and post-emergence herbicide. It works by germinating weed seeds in contact with soil agents or weed seedlings to absorb the agent. It has its selectivity in many crops (sugar cane, rice, cotton, soybeans, etc.). In order to ascertain the control effects of oxiclopranacas on the weeds in the northern Hunan sugarcane fields and the changes in the economic traits of sugarcane, we carried out experimental studies in sugarcane and plastic film cane from 1984 to 1986. The test results are summarized as follows: