【摘要】 2003年4～10月,在稻鸭共栖田中,对二化螟发生规律的系统研究结果表明,稻田养鸭能显著减轻二化螟的为害。与对照相比,中稻田养鸭区二化螟为害株率减少13.4%～47.1%;晚稻田减少62.2%。稻鸭共栖能减少化学农药的使用量,具有较好的经济、社会和生态效益。更多还原

【Abstract】 Occurring rules of Chilo suppressalis in duck-rice ecosystem were s tudied from April to October, 2003, results indicated that the damages of Chilo suppressalis were greatly reduced in duck rice system, incidence of Chilo suppre ssalis decreased by 13 4%～47 1%in duck-middle rice fields, 62 2%in duck-late rice field compared with CK, so less pesticide was used in duck-rice eco system, and better economic, social and ecological benefit were produced.更多还原