High population and virulence ratio of laodelphax striutella, cultivation mode, and resistance to rice stripe of rice varieties are the reasons why rice stripe broke out.
英
美
释义
分析其暴发原因:灰飞虱虫量和带毒率高;耕作栽培制度有利于发病;水稻品种不抗病等。
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2024 海词词典(Dict.cn)
立即下载