Plant and Soil

, Volume 369, Issue 1–2, pp 231–240 | Cite as

Phosphorus accumulation in grains of japonica rice as affected by nitrogen fertilizer

  • Junguo Bi
  • Zhenghui Liu
  • Zhaomiao Lin
  • Md A. Alim
  • Muhammad I. A. Rehmani
  • Ganghua Li
  • Qiangsheng Wang
  • Shaohua Wang
  • Yanfeng Ding
Regular Article


Background and aims

This study aims to investigate the effect of nitrogen (N) on grain phosphorus (P) accumulation in japonica rice.


Six cultivars with contrasting agronomic traits were grown for 3 years (from 2008 to 2010) of field experiments under seven N treatments and 1 year (in 2010) of pot experiments with five N treatments to study the effect of N on grain phosphorus accumulation and to explore its physiological foundation.


Grain total P and phytic acid concentration showed a clearly decreasing trend as N rate increased for both field and pot experiments. Pot experiment revealed that application of N increase plant biomass, but tended to lower plant P uptake, especially for the split topdressing treatments. Both harvest index (HI) and P harvest index (PHI) increased with N rate, but PHI was consistently higher than HI, indicating the larger proportion of P translocation to grain than that of dry matter by N. Further, ratio of PHI/HI differed significantly among genotypes, but was stable across contrasting N treatments.


The combination of decreased plant P uptake and dilution effect of increased grain yield by N is proposed as underlying mechanism of the decreased grain P concentration by high N.


Phosphorus accumulation Nitrogen Grain Japonica rice 



Control of N fertilizer treatment


Coefficient of variation


High nitrogen rate


Low nitrogen rate


Moderate nitrogen rate







This research was supported by grants from Program for New Century Excellent Talents in University (NCET-10-0472) and National Natural Science Foundation of China (30971733 and 31171485).

Supplementary material

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Fig. 1 (DOC 497 kb)
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Table 1 (DOC 68 kb)
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Table 2 (DOC 69.5 kb)
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Table 3 (DOC 64.5 kb)
11104_2012_1561_MOESM5_ESM.doc (64 kb)
Table 4 (DOC 63.5 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Junguo Bi
    • 1
  • Zhenghui Liu
    • 1
  • Zhaomiao Lin
    • 1
  • Md A. Alim
    • 1
  • Muhammad I. A. Rehmani
    • 1
  • Ganghua Li
    • 1
  • Qiangsheng Wang
    • 1
  • Shaohua Wang
    • 1
  • Yanfeng Ding
    • 1
  1. 1.College of AgronomyNanjing Agricultural UniversityNanjingChina

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