【摘要】 综述了近几年国内外对千金子 [Leptochloachinensis (L )Nees ]发生危害及防除等方面的最新研究信息。局部发生重、分布范围广是其目前发生的主要特征 ;成株率高、总积温低、旱生喜湿、出草早、具萌发峰、生育期不同、分蘖能力强、单株产种量大、植株大、共生期长、对常用除草剂不敏感等生物学特性是千金子在直播稻田危害加剧的主导因子 ;实施千金子在直播稻田萌发前、苗期和大量发生时化学防治为基础、农业防治为补充 ,成株期农业防除为主体、化学防治为补充 ,适当提倡生物治草的杂草综合治理 (IWM)措施是当前国内外流行的做法。提出了现阶段千金子综合治理所面临的挑战 ,展望了今后的杂草治理新动向。更多还原

【Abstract】 Abstrct: The occurrence characteristics, damages and its control etc newly researching informations of Leptochloa chinensis (L.) in home and abroad are summarized in this paper partly occuring seriously and the distributing scope widely are the major characteristics occuring at present The biology property such as the big ratio in forming plant, low total accumulation temperature throug hout the life, the growth in dry-land liking moistly, emerging early,sprouting peak and different growth period,the strong tillering, the high product,the large plant, long accreting phase and susceptivity to herbicides in common use and allelop athy’s matter secrete etc of Leptochloa chinensis (L ) are leading factors aggravating rice in direct seeding the chemical control is dominant assistianting agricultural control at sprouting and seedling stage of Leptochloa chinensis (L );the other way round when forming the plant The suitable IWM that the weed was cured of advocating by bio-control is the way in the home and abroad is popular at present Finally has put forward appearing the stage to carry on the challenge that IWM is faced with to Leptochloa chinensis (L ), and has looked into the distance carries on the new trend of WM from now on更多还原