共 13 条
[3]
DAHNKE WC, 1980, N DAKOTA AGR EXP STN, V499
[4]
DITTERLINE RL, 1975, MONTANA AGR EXP STN, V681
[5]
Dubbs AL, 1968, MONT AGR EXP STA B, V627, P22
[8]
MARTEN GC, 1984, INFLUENCE QUALITY VA, P159
[9]
MINSON DJ, 1983, 14TH P INT GRASSL C, P23
[10]
SEANEY R. R., 1970, Advanc. Agron., V22, P119, DOI 10.1016/S0065-2113(08)60267-9