共 14 条
[1]
COWLING DW, 1966, 10 P INT GRASSLD C H, P204
[2]
HOLMES W., 1955, Journal of Agricultural Science, V46, P267, DOI 10.1017/S0021859600040211
[4]
HOPPER MJ, 1967, 1966 T COMM 2 4 INT, P237
[9]
WALKER T. W., 1952, JOUR BRIT GRASSLAND SOC, V7, P107
[10]
WALKER T. W., 1953, JOUR BRIT GRASSL SOC, V8, P45