The effect of soil pH on rhizosphere carbon flow of Lolium perenne

@article{Meharg2004TheEO,
  title={The effect of soil pH on rhizosphere carbon flow of Lolium perenne},
  author={Andy A. Meharg and K. K. Killham},
  journal={Plant and Soil},
  year={2004},
  volume={123},
  pages={1-7}
}
Perennial rye-grass plants were grown at 15°C in microcosms containing soil sampled from field plots that had been maintained at constant pH for the last 30 years. Six soil pH values were tested in the experiment, with pH ranging from 4.3–6.5. After 3 weeks growth in the microcosms, plant shoots were exposed to a pulse of 14C-CO2. The fate of this label was determined by monitoring 14C-CO2 respired by the plant roots/soil and by the shoots. The 14C remaining in plant roots and shoots was… CONTINUE READING

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