Interactions between nitrate uptake and N2 fixation in white clover

@article{Davidson2005InteractionsBN,
  title={Interactions between nitrate uptake and N2 fixation in white clover},
  author={Ingemar J A Davidson and Michael J. Robson},
  journal={Plant and Soil},
  year={2005},
  volume={91},
  pages={401-404}
}
White clover (Trifolium repens L.) plants grown in pots and supplied with the same ‘concentration x days’ of15N labelled nitrate, but in contrasting patterns and doses had similar N concentrations but differed in the proportions devived from N2 fixation and nitrate. N2-fixation and nodule dry weight responded rapidly (2–3 days) to changes in nitrate availability. Plants exposed frequently to small doses of nitrate took up more nitrate (and hence relied less on N2-fixation) and had greater dry… CONTINUE READING