酰胺类除草剂对红小豆的安全性

针对当前红小豆农业生产中大量应用的酰胺类除草剂并丙草胺、并丙甲草胺，研究其对红小豆苗期的安全性。研究表明，在低温、土壤墒情好的条件下两种药剂均对红小豆不安全，主要表现在影响出苗率、抑制生长、根体积明显减少、真叶叶片皱缩扭曲、严重的叶缘开始发黄、根瘤减少、逐渐枯死。两种药剂药害程度相近、随剂量增加症状明显加重，高用量时拱土期施药比播后立即施药的药害相对较轻，随有机质含量的降低而药害加重。

Safety of Acylamino-Herbicide to Adzuki Bean

The safety of acylamino-herbicide propisochlor and metolachlor to adzuki bean in seedling stage was studied.The testing results showed that under the conditions of low temperature and suitable soil moisture the both kinds of herbicides are not safety.For example,germination percentage decreased,growth was inhibited,and roots volume reduced obviously.And for the serious,leaf edge became yellow and damped off gradually.The injury extent brought by the two kinds of herbicides were similar.With the increase of amount application,the injury symptom became severe obviously.When application in rooting stage with large amount,the injury extent would slighter than that of application right after seed sowing.With the decrease of soil organic,the injury extent became severe