1. Evidence that P deficiency induces N feedback regulation of symbiotic N2 fixation in white clover (Trifolium repens L.);Almeida;J. Exp. Bot.,2000
2. Leaf δ15N as a physiological indicator of the responsiveness of N2-fixing alfalfa plants to elevated [CO2], temperature and low water availability;Ariz;Front. Plant Sci.,2015
3. Armstrong, R.D., Bourgault, M., Lam, S.K., 2015. Soil type influences N2 fixation in fieldpeas more than elevated CO2.·In: Building Productive, Diverse and Sustainable Landscapes. (Acuña, T, Moeller C, Parsons D, Harrison, M., Eds.), Proc. 17th Aust. Agron. Conf. 2015, (Aust. Soc. Agron.) pp. 721–724. http://www.agronomy2015.com.au/papers/agronomy2015final00419.pdf
4. Symbiotic N2 fixation in a high alpine grassland: effects of four growing seasons of elevated CO2;Arnone;Funct.Ecol.,1999
5. The use of mean pool abundances to interpret 15N tracer experiments. I. Theory;Barraclough;Plant Soil,1991