共 15 条
[3]
HEINRICHS DH, 1963, ADV AGRON, V15, P317, DOI DOI 10.1016/S0065-2113(08)60402-2
[4]
JUNG GA, 1972, ALFALFA SCI TECHNOLO
[10]
LECLERG EL, 1962, FIELD PLOT TECHNIQUE, P215