摘要
为免耕移栽油菜轻简化栽培施肥提供技术支撑,采用田间试验方法,研究复合肥不同施用量对稻田免耕移栽油菜产量和经济性状的影响。结果表明:施用复合肥处理的油菜产量显著或极显著高于不施复合肥的处理;复合肥不同施用量处理间的油菜产量存在显著差异,施用量70kg/667m2和60kg/667m^2处理的产量极显著高于其余施肥处理,但二者差异不显著;复合肥施用量与油菜株高、有效分枝部位、一次有效分枝数、主花序有效角果数、单株有效角果数和产量呈显著或极显著正相关。从经济效益和油菜田间性状考虑,稻田免耕移栽油菜复合肥适宜施用量在60kg/667m^2左右,可实现田间性状的合理结构,进而获得较高的油菜产量。
To provide the technical support for simplification of cultivation and fertilization for rape transplanting in no-tillage field,a field experiment was conducted to explore the effects of compound fertilizer application level on yield and economic characters of rape transplanting in no-tillage rice paddy field.Results:The yield of rape applied with compound fertilizer was significantly or very significantly greater than non-compound fertilizer treatment.There was a significant difference in yield of rape applied with different fertilizer amount.The yields of rape applied with 70 kg/667 m^2 and 60 kg/667 m^2 compound fertilizer were very significantly greater than other compound fertilizer treatments,but there was no obvious difference in yield of rape applied with 70 kg/667 m^2 and 60 kg/667 m^2 compound fertilizer.The compound fertilizer application level was positively and significantly or very significantly related to plant height,effective branch position,first effective branch number,effective pods on main fluorescence,effective pods per plant and yield.The suitable compound fertilizer application level for rape transplanting in no-tillage paddy field was about 60 kg/667 m^2 in terms of economic benefit and rape field traits.60 kg/667 m^2 compound fertilizer application level could realize the rational structure of field traits for gaining higher rape yield.
作者
任廷波
赵继献
胡权
戴祥来
REN Tingbo;ZHAO Jixian;HU Quan;DAI Xianglai(Rape Institute,Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550008,China)
出处
《贵州农业科学》
CAS
2020年第4期32-35,共4页
Guizhou Agricultural Sciences
基金
贵州省现代农业产业技术体系建设项目“油菜产业技术体系建设”(GZCYTX2013-0802)
贵州省科技计划项目“高油酸甘蓝型油菜种质创新及利用”[黔科合支撑(2016)2556]。
关键词
油菜
复合肥
稻田
免耕移栽
产量
rape
compound fertilizer
rice paddy field
no-tillage transplanting
yield
