摘要
采用田间试验法,研究了贵州山区一季中稻稻田养鸭对水稻害虫的控制效果。结果表明:贵州山区一季中稻每公顷放鸭90只,可有效控制稻飞虱的危害。放鸭两周后与对照相比稻飞虱数量下降了44%。但由于试验田稻水象甲幼虫密度低于10头/20丛,稻鸭共育对稻水象甲的控制效果不显著。对群落多样性指数调查表明,放鸭对稻田昆虫物种多样性、物种丰富度和均匀度没有明显影响。
Rice-duck farming has a long history in China,we conducted the experiment of rice-duck farming in mountainous rice field to evaluate its control effect on insect pests.The results showed that 90 ducks per hectare in rice-duck farming decreased significantly the population of rice planthopper by 44％ in mountainous middle-season rice field.There was no negative effect on rice water weevil larva because of low density of the weevil （below 10 weevils/20 hills） in experiment plot.Rice-duck farming did not affect the diversity index,richness,eveness index of insect community in rice field.
出处
《山地农业生物学报》
2013年第5期415-417,453,共4页
Journal of Mountain Agriculture and Biology
基金
贵州省农业攻关重点项目"贵州省稻水象甲防控技术研究与集成示范"[黔科合NY字(2010)3079]
关键词
贵州山区
一季中稻
稻鸭共育
水稻害虫
mountainous middle-season rice
rice-duck farming
rice pests
