共 8 条
[1]
DENT J. W., 1963, J NAT INST AGR BOT, V9, P261
[2]
GUILBERT H. R., 1931, Hilgardia, V6, P1
[3]
KEFFORD N. P., 1958, JOUR AUSTRALIAN INST AGRIC SCI, V24, P297
[4]
LECLERC JA, 1908, USDA YB, P389
[5]
MOWAT DN, 1965, 9 P INT GRASSL C
[6]
PRITCHARD G. I., 1963, CANADIAN JOUR PLANT SCI, V43, P79
[7]
TERRY R. A., 1964, J BRIT GRASSLAND SOC, V19, P363
[8]
TILLEY J. M. A., 1963, JOUR BRIT GRASSLAND SOC, V18, P104