Carbon, nitrogen and phosphorus stoichiometry in differently aged lucerne stands during flowering

DOI: 10.18805/lr.v0iOF.9612    | Article Id: LR-257 | Page : 595-600
Citation :- Carbon, nitrogen and phosphorus stoichiometry in differentlyaged lucerne stands during flowering .Legume Research-An International Journal.2016.(39):595-600

Jiaoyun Lu, Shubin He1, Zhennan Wang and Huimin Yang*

huimyang@lzu.edu.cn
Address :

State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, 768 Jiayuguanxi Road, Lanzhou 730020, China.

Submitted Date : 16-10-2015
Accepted Date : 4-04-2016

Abstract

This study aimed to test the hypothesis that stoichiometric ratios of C, N and P change with plant growth during flowering. The C:N, C:P and N:P varied without solid trends during flowering. The C:N was significantly different only between cuts, while the C:P and N:P were influenced by age, cut and their interaction. The C:N and C:P were higher in the 1st cut than in the 2nd cut, while for N:P, it was opposite. No solid trends were observed with the effects of age on both C:P and N:P. The N and P were closely correlated with C:N, C:P and N:P. Conclusively, stoichiometric ratios of C, N and P varied during flowering and changed with stand age and cut.

Keywords

Alfalfa C:N C:P Flowering Growth stage N:P.

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