江苏金坛水稻田杂草发生危害调查研究

Investigation on the Incidence and Damage of Weeds in Rice Fields in Jintan,Jiangsu Province

为揭示江苏金坛稻麦轮作制水稻田杂草组成、发生等危害特点,于2014年10月调查不同区域、不同管理措施的90块水稻田。结果显示:金坛地区水稻田有12科21属23种杂草,其中外来入侵杂草2种;优势杂草种为鸭舌草(Monochoria vaginalis)、水苋菜(Ammannia baccifera)、稗草(Echinochloa crusgalli)、千金子(Leptochloa chinensis)、陌上菜(Lindernia procumbens)、多花水苋(Ammannia multiflora)。

Aiming at identifying weed species and assessing their damage in rice fields under a rice- wheat rotation cropping system,we examined 90 rice fields located in different villages,which were under different management systems,in Jintan District in October2014. As a result,weeds in these fields comprised 23 species belonging to 21 genera under 12 families,including two invasive weed species; and the predominant weed species were as follows： Monochoria vaginalis,Ammannia baccifera,Echinochloa crusgalli,Leptochloa chinensis,Lindernia procumbens,and Ammannia multiflora.