河南农业科学2025，Vol.54Issue(8)：92-101,10.DOI:10.15933/j.cnki.1004-3268.2025.08.009
氮硅配施对双季稻田间稻飞虱发生与水稻产量的影响
Effects of Nitrogen-Silicon Combined Application on Rice Planthopper Occurrence and Rice Yield in Double-Cropping Rice Field
摘要
Abstract
To provide scientific basis and technical support for green prevention and control of rice planthopper occurrence and sustainable production of double-cropping rice in paddy fields,field experiments on early and late rice were carried out at Funong Cooperative in Meihua Village,Xidu Town,Hengyang County,Hunan Province.With Xiangzaoxian 45(early rice)and Taiyou 553(late rice)as materials,four nitrogen application levels[early rice N0(0 kg/ha),N1(120 kg/ha),N2(150 kg/ha)N3(180 kg/ha)and late rice N0(0 kg/ha),N1(150 kg/ha),N2(180 kg/ha)and N3(210 kg/ha)]and two silicon levels[S0(0 kg/ha),S1(150 kg/ha)]were designed for the early and late rice.Under machine-transplanted conditions,field experiments were conducted to explore the effects of combined application of silicon fertilizer under different nitrogen application rates on the occurrence of rice planthoppers and rice yield in double-cropping paddy fields in southern Hunan(Hengyang).The results showed that nitrogen application rate had a significant effect on the occurrence of field rice planthoppers,rice yield and its components.With the increase of nitrogen application rate,the number of field rice planthoppers increased significantly,and the effective panicle number,grains per panicle,1 000-grain weight and yield of rice were significantly improved.Silicon application had a significant effect on the occurrence of field rice planthoppers,significantly reducing the number of field rice planthoppers.The highest insect population reduction rate of early rice could reach 56.81%,and that of late rice could reach 71.59%.The effective panicle number,grains per panicle,1 000-grain weight and yield of silicon-applied rice were all improved,but the difference was not significant.The yield increase range of early rice was 2.32%—11.57%,and that of late rice was 2.83%—9.83%.The interaction effect of nitrogen application rate and silicon application had a significant effect on the occurrence of field rice planthoppers and rice yield.The yields of N3S1,N3S0 and N2S1 were higher in both early and late rice,and there was no significant difference among them,but the number of rice planthoppers in N2S1 treatment was significantly lower than that in N3S1 and N3S0 treatments.Considering the rice yield and the control effect of rice planthoppers,it is appropriate to apply 150 kg/ha nitrogen combined with 150 kg/ha silicon fertilizer for early rice,and 180 kg/ha nitrogen combined with 150 kg/ha silicon fertilizer for late rice in Hengyang area.关键词
双季稻/施氮量/硅肥/稻飞虱/产量Key words
Double-cropping rice/Nitrogen application rate/Silicon fertilizer/Rice planthopper/Yield分类
农业科技引用本文复制引用
程周琦,刘玉午,卓乐,邱林,易镇邪..氮硅配施对双季稻田间稻飞虱发生与水稻产量的影响[J].河南农业科学,2025,54(8):92-101,10.基金项目
国家重点研发计划项目(2021YFD1401100) （2021YFD1401100）
