江苏金坛水稻田杂草发生危害调查研究

摘要

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 vagina-lis）、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 October 2014.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,Lepto-chloa chinensis,Lindernia procumbens,and Ammannia multiflora.