共 17 条
[1]
BARNES RF, 1969, P NATL C FORAGE QUAL
[3]
BRANSON FARREL A., 1953, JOUR RANGE MANAGEMENT, V6, P165, DOI 10.2307/3893839
[6]
GOERING HK, 1970, ARS379 USDA AGR HDB
[8]
LIPPKE H, 1976, 33RD P SO PAST FOR C, P15
[9]
MOTT GO, 1969, P NAT C FOR QUAL EV, pL1