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Nitrogen deposition influences the response of Potentilla tanacetifolia to phosphorus addition

Yang G1,2, Z Zhang1, G Zhang3, H Zhang2, X Han3, CA Busso4

1 Shanghai Institute of Technology, Shanghai 201418, China.
2 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 1100164, China.
3 State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
4 Departamento de Agronomía-CERZOS (CONICET), Universidad Nacional del Sur, 8000 Bahía Blanca, Prov. de Buenos Aires, Argentina.

Address correspondence to: Zhang Zhiguo, e-mail: email

Phyton-International Journal of Experimental Botany 2016, 85(all), 100-107.


Phosphorus is an essential macronutrient for all living plants and plant production. Simultaneously, atmospheric nitrogen deposition also affects plant productivity at a global scale. However, few studies have investigated how plants respond to P addition while simultaneously considering N deposition. We investigated plant biomass, nutrient status and stoichiometric ratios on Potentilla tanacetifolia in response to P fertilization under contrasting N addition rates in a typical meadow steppe in Inner Mongolia, China. Aboveground biomass of P. tanacetifolia increased under increasing levels of P fertilization under conditions of N addition. However, there was no significant change in biomass when only phosphorus was added. Plant leaf and stem P concentrations increased linearly with P addition when there was no N addition. Our results suggest that increased plant P nutrition under P addition will not turn into plant growth enhancement unless N demands are also satisfied. Nitrogen addition significantly increased leaf N concentrations, and leaf and seed N:P ratios, when there was no P fertilization. Nevertheless, the effects of N addition were weakened, and eventually disappeared when P fertilization rates increased. This indicates that N-induced alterations of the plant nutrition status and stoichiometric ratios were P availability- dependent. Overall, our results suggest that multiple-nutrient constraints and their interactions must be considered when assessing plant nutrient and growth responses to nutrient enrichment.


Cite This Article

APA Style
G, Y., Zhang, Z., Zhang, G., Zhang, H., Han, X. et al. (2016). Nitrogen deposition influences the response of <i>potentilla tanacetifolia</i> to phosphorus addition. Phyton-International Journal of Experimental Botany, 85(all), 100-107.
Vancouver Style
G Y, Zhang Z, Zhang G, Zhang H, Han X, Busso C. Nitrogen deposition influences the response of <i>potentilla tanacetifolia</i> to phosphorus addition. Phyton-Int J Exp Bot. 2016;85(all):100-107
IEEE Style
Y. G, Z. Zhang, G. Zhang, H. Zhang, X. Han, and C. Busso "Nitrogen deposition influences the response of <i>Potentilla tanacetifolia</i> to phosphorus addition," Phyton-Int. J. Exp. Bot., vol. 85, no. all, pp. 100-107. 2016.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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