摘要
为研究氮肥施用量与昆虫种群与捕食性天敌种群密度的关系。设立0、90、150、210 kg/hm^24个氮肥水平,研究田间白背飞虱、褐飞虱、灰飞虱、黑尾叶蝉、电光叶蝉和二点叶蝉以及捕食性天敌拟水狼蛛、驼背额角蛛、食虫沟瘤蛛和黑肩绿盲蝽的平均密度和种群密度时间动态。结果表明,210 kg/hm^2氮肥水平下,3种稻飞虱的平均密度均显著高于0、90、150 kg/hm^2稻田。0、90、150、210 kg/hm^2氮肥稻田间,3种稻叶蝉以及拟水狼蛛、驼背额角蛛、食虫沟瘤蛛的平均密度均无显著差异。不同氮肥施用量田间稻飞虱与稻叶蝉及捕食性天敌种群密度的时间动态走势基本一致。研究结果表明高水平的氮肥施用会显著促进田间稻飞虱种群密度增多,但对稻叶蝉及捕食性天敌种群动态均无显著影响。
A field trial was carried out to assess the population density and temporal dynamics of density of Sogatella furcifera,Nilaparvata lugens,Laodelphgax striatellus,Nephotettix cincticeps,Deltocephalus dorsalis,Cicadula fasciifrons,Pirata subpiraricus,Gnathonarium gibberum,Ummeliata insecticeps and Crytorrhinus lividipennis by using different nitrogenous levels 0,90,150 and 210 kg/hm^2.The results showed that： thepopulation densities of the three rice planthoppers in 210 kg/hm^2 treatment were significantly higher than those in 0,90,150 kg/hm^2 treatment; no significant difference of population density of the three rice leafhoppers,and Pirata P.subpiraricus,G.gibberum and U.insecticeps was found among all the treatments; moreover,temporal dynamics of density of rice planthoppers,leafhoppers and their predators were basically consistent in different nitrogenous fertilization levels.The results indicated that high nitrogenous fertilization could significantly increase the population density of rice planthoppers,but had no significant influence on population dynamics of rice leafhoppers and their predators.
作者
徐雪亮
王奋山
刘子荣
姚英娟
Xu Xueliang, Wang Fenshan, Liu Zirong, Yao Yingjuan(Applied Agricultural Micro-organism Research, Jiangxi Academy of Agricultural Sciences, Nanchang 33020)
出处
《中国农学通报》
2018年第5期107-112,共6页
Chinese Agricultural Science Bulletin
基金
江西省科技厅成果转化项目"植物源新农药石菖蒲及其在褐飞虱综合防治中的应用中试与示范"(20152BBI90015)
江西省科技厅对外科技合作计划项目"稻田化学农药减量控害技术研究与示范"(20151BDH80067)
关键词
氮肥施用量
稻飞虱
稻叶蝉
捕食性天敌
种群动态
nitrogenous fertilization
rice planthoppers
rice leafhoppers
predators
population dynamics
