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Estimation of N2 fixation by nitrogenfixing trees in the su..:

Liya, S.M ; Odu, C.T.I ; Agboola, A.A.
Liya, S.M., Odu, C.T.I., Agboola, A.A. & Mulongoy, K. (1991). Estimation of N 2 fixation by nitrogen fixing trees in the subhumid tropics using 15 N dilution and difference methods. Stable isotopes in plant nutrition, soil fertility and environmental studies. Vienna, Austria, 1-5 October 1990, Vienna, Austria: International Atomic Energy Agency. (p. 240-242)..  , 2019