共 16 条
[12]
MADSEN A, 1979, ACTA AGR SCAND S, V21, P265
[13]
MCBRIDE G, 1968, ADAPTATION DOMESTIC, P360
[14]
MILLER KP, 1976, 1975 1976 U MINN MIN, P11
[15]
Snedecor G.W., 1980, STAT METHODS
[16]
1979, NUTRIENT REQUIREMENT