%0 Journal Article
%T 根系互作对间作玉米大豆氮和磷吸收利用的影响
%A 张雷昌
%A 汤利
%A 董艳
%A 郑毅
%J 南京农业大学学报
%D 2016
%R 10.7685/jnau.201601010
%X [目的] 探明根系互作对玉米大豆氮、磷吸收利用的影响,为作物高产优质提供依据。[方法] 通过水培试验,来实现根系互作效应,共设3个处理:单作玉米、单作大豆、间作玉米大豆。处理13、31、45、57 d时采样分析植株各部位的氮、磷含量。[结果] 根系互作提高了玉米各器官与地上部氮、磷累积量,而大豆各器官及地上部氮、磷累积量则表现出了根系互作劣势。与单作相比,间作玉米地上部氮累积量在处理13和31 d分别提高了224.6%和24.0%(P<0.05),但是在后期,与单作相比有所降低。在处理13和45 d时,与单作相比,间作玉米地上部磷累积量提高了145.8%和46.4%(P<0.05)。与单作相比,处理13、45、57 d时,间作大豆地上部氮累积量分别降低了47.5%、34.9%、46.0%(P<0.05),处理13、31、45、57 d时,间作大豆地上部磷累积量分别降低了17.5%、24.9%、14.5%、40.1%(P>0.05)。[结论] 根系互作提高了玉米各器官及地上部氮、磷累积量,因此,玉米大豆间作体系具有明显的氮、磷吸收利用优势。</br>[Objectives] The paper aims to explore the effect of interaction roots on soybean and maize’s absorption and utilization of nitrogen and phosphorus,to provide the basis for high-qualit and high-yield crops.[Methods] Through hydroponic experiment,this study implemented the interaction effect of root,with three treatments:monoculture maize,monoculture soybean,maize and soybean intercropping.According to the processing after 13,31,45 and 57 d sampling analysis,root,stem and leaf were separated,and then the crush was dried to measure the nitrogen and phosphorus,with molybdenum antimony colorimetric method.[Results] Root interactions improved nitrogen and phosphorus accumulation of the maize organs and aboveground,howere,nitrogen and phosphorus accumulation of soybean organs and aboveground showed root interaction as disadvantage.Compared with the monoculture,nitrogen accumulation of aboveground interplanting maize after processing 13,31 d incresded by 224.6% and 24.0%(P<0.05),respectively,but in the later stage,it was lower than monoculture. After treatment of 13,45 d,compared with monoculture,the phosphorus accumulation of maize with interplanting increased by 145.8% and 46.4%,respectively(P<0.05).Compared with monoculture,after treatment of 13,45,57 d,nitrogen accumulation of aboveground soybean interplanting was reduced by 47.5%,34.9%,46.0%(P<0.05)respectively,after treatment of 13,31,45,57 d,phosphorus accumulation of aboveground interplanting soybean reduced by 17.5%,24.9%,14.5%,40.1% respectively(P<0.05).[Conclusions] Root interactions improve organs and nitrogen and phosphorus accumulation of aboveground with maize. Therefore,maze and soybean intercropping system has obvious advantages in nitrogen and phosphorus absorption and utilization
%K 玉米大豆间作
%K 根系互作
%K 氮磷比
%K 生物量
%K 化学计量特征&lt
%K /br&gt
%K maize and soybean intercrop
%K root interaction
%K ratio of N to P
%K biomass
%K stoichiometric characteristics
%U http://nauxb.njau.edu.cn/oa/darticle.aspx?type=view&id=201604012