论文部分内容阅读
安徽省池州市贵池区姚卫平通过电子邮件发来一张旱直播稻田杂草图片。他问,这种杂草是不是无芒稗,有什么好的除草剂可以将其防除。经南京农业大学杂草研究室主任强胜教授鉴定,这种杂草是小旱稗,为禾本科稗属杂草。小旱稗一年生,形态与稗近似,在不少地区被称为“红梗稗草”。与稗不同的是,小旱稗幼苗叶片深绿色,叶鞘常略带紫色。成株秆光滑无毛。圆锥花序较狭窄,软弱而下垂,小穗无芒或具短芒,圆锥花序的分枝常贴向主轴、颖果。一般旱直播田和漏水田发生较量,比较难除。
Yao Weiping, Guichi District, Chizhou City, Anhui Province, sent an e-mail to a direct broadcast of weeds in rice fields. He asked whether this weed is not a barnyardgrass and what good herbicides can prevent it. Identified by Professor Qiangsheng, director of the weed research office at Nanjing Agricultural University, this weed is barnyardgrass and weeds of the genus Echinochloa. Small annual barnyardgrass annual, shape and barnyard approximate, in many areas known as “red barnyard grass ”. And barnyardgrass is different, barnyardgrass seedling leaves dark green, leaf sheath often purplish. Adult stalks smooth and glabrous. Panicles narrower, weak and drooping, spikelets or with a short Mount Mang, often affixed to the main branch of panicle, caryopsis. Generally dry field broadcast field and leakage occurred in the field, more difficult to remove.