Journal article

Effects of free-air CO2 enrichment (FACE) on N, P and K uptake of soybean in northern China

Xingyu Hao, Ping Li, Xue Han, RM Norton, SK Lam, Yuzeng Zong, Ming Sun, Erda Lin, Zhiqiang Gao

AGRICULTURAL AND FOREST METEOROLOGY | ELSEVIER | Published : 2016

Abstract

The objective of this study was to investigate the effect of elevated (550±19μmolmol−1) [CO2] on uptake and utilization of nitrogen (N), phosphorus (P) and potassium (K) by soybean (Glycine max (L.) Merr) at the free-air carbon dioxide enrichment (FACE) experimental facility in northern China. The above-ground biomass and root biomass were significantly increased under elevated [CO2]. Elevated [CO2] significantly decreased the N concentration of the above-ground part at the beginning bloom (R1) stage, but had no effect at the beginning pod (R3), beginning seed (R5) or harvest stage. The concentration of ureide in the upper most fully-expanded leaf was not significantly affected by elevated [..

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Grants

Awarded by National Key Technology R&D Program in the 12th Five year Plan of China


Awarded by National Basic Research Program of China (973 Program)


Awarded by Natural science fund projects of Shanxi Province


Awarded by Key Scientific Research Projects of Coal Fund in Shanxi


Awarded by earmarked fund for Modern Agro-industry Technology Research System


Funding Acknowledgements

This work was supported by National Key Technology R&D Program in the 12th Five year Plan of China (No. 2013BAD11B03-8), the National Basic Research Program of China (973 Program) (No. 2012 CB955904), Natural science fund projects of Shanxi Province (No. 2013011039-3), The Key Scientific Research Projects of Coal Fund in Shanxi (FT201402-01), the Agricultural Science and Technology Innovation Program of CAAS, and the earmarked fund for Modern Agro-industry Technology Research System (CARS-3-1-24).