1·Pesticides commonly used during the tobacco seedling stage were spray applied at both recommended and higher rates to determine phytotoxicity in a greenhouse floating seedling assay.
在漂浮育苗大棚内，选取烟草苗期常用农药，以推荐剂量和超推荐剂量，采用喷雾方式进行药剂药害试验。
2·Amide herbicides are the most important same species of the paddy field herbicides, however they cause the phytotoxicity easy.
酰胺类除草剂是水田除草剂中重要的一类，但是易对幼嫩水稻产生药害。