CAJ | 학술논문

经调查,桃源县直播稻田杂草发生特点主要表现为:发生时间长;有3个出草高峰,即播后7～10 d、15～20 d、35～50 d.有利杂草发生的成因主要是直播稻田干湿交替时间长,水稻前期竞争力弱,秧苗期和本田期整个生育期长等.针对杂草发生特点,因地制宜提出了选取"除、封、杀、补(或拔)"的杂草综合防除对策.
경조사,도원현직파도전잡초발생특점주요표현위:발생시간장;유3개출초고봉,즉파후7～10 d、15～20 d、35～50 d.유리잡초발생적성인주요시직파도전간습교체시간장,수도전기경쟁력약,앙묘기화본전기정개생육기장등.침대잡초발생특점,인지제의제출료선취"제、봉、살、보(혹발)"적잡초종합방제대책.
The major characteristics of weeds occur in direct sowing dee field in Taoyuan County are as follows: long occurrence time; there are three germination peaks, which ale 7～10 days, 15～20 days and 35～50 days after sowing. The favorable causes for weeds oocurrence mainly are as follows: long alternate time of dry-wet in direct sowing rice field, weak competitive power in prophase of rice growth, long whole growth period (seedling period and growth period). According to these characteristics of weeds oceurrenee, the integrated control strategies for local status were proposed, which are removing, sealing, killing and pulling.