不同土壤pH和铵硝态氮配比对杉木和木荷幼苗生理特性及各器官氮含量的影响
Effects of Different Soil pH and Ratios of Ammonium to Nitrate on the Physiological Characteristics and Nitrogen Contents of Various Organs in Cunninghamia lanceolata and Schima superba Seedlings
[目的]在土壤酸化和氮(N)亏缺及异质性分布环境加剧的背景下,探究不同土壤pH和铵硝态氮配比的栽培环境对亚热带主要针叶树杉木和阔叶树木荷幼苗生理特性和根茎叶氮含量的影响及差异,可为筛选适宜 2 个树种生长的最佳土壤pH和氮形态配比环境提供科学依据。[方法]本研究以杉木和木荷幼苗为研究对象,设置2个pH水平(pH1=4.5和pH2=6.5)和5 个铵硝态N配比(NH4+-N∶NO3--N分别为10∶0、7∶3、3∶7、0∶10、5∶5),模拟和构建…查看全部>>
[Objective]In the context of soil acidification and nitrogen(N)deficiency and the intensification of heterogeneous distribution environment,to investigate the effects and differences of different soil pH and ratios of ammonium to nitrate on the physiological characteristics and root,stalk,and leaf N content of seedlings of the subtropical major coniferous tree,Cunninghamia lanceolata,and broadleaf tree,Schima superba,which can provide a scientific basis for …查看全部>>
余佳翔;王立冬;梁海燕;王燕茹;全小强;李小玉;闫小莉;
Soil pH Ammonium-nitrate-nitrogen ratio Physiological properties Nitrogen content C.lanceolata S.superba
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