共 16 条
[11]
HARPER JOHN L., 1961, SYMPOSIA SOC EXPTL BIOL, V15, P1
[12]
KING J, 1971, J BRIT GRASSLAND SOC, V26, P221
[15]
ISOTOPIC STUDIES ON UPTAKE OF NITROGEN BY PASTURE PLANTS .3. UPTAKE OF SMALL ADDITIONS OF 15N-LABELLED FERTILIZER BY RHODES GRASS AND TOWNSVILLE LUCERNE
[J].
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH,
1967, 18 (06)
:865-+
[16]
Van den Bergh J. P, 1968, 714 VERSL LANDB OND, P1