共 20 条
[1]
AXELSSON J, 1953, LANDBRUKS HOGSKOLL A, V19, P145
[2]
BAUMGARDT BR, 1962, 10 WISC AGR EXPT STA
[3]
CHRISMAN J, 1968, 10 P TECH ALF C REN, P37
[4]
CHRISMAN J, 1963, 8 P TECH ALF C, P44
[5]
CHRISMAN J, 1965, 9 TECH ALF C, P17
[6]
CHRISTENSEN RE, 1968, J ASSOC OFF ANA CHEM, V51, P1003
[8]
KNOOP JG, 1967, FARM QUARTERLY, V22, P52
[9]
MARTEN GC, 1970, 11TH P INT GRASSL C, P506
[10]
OGDEN RL, 1965, 9 P TECH ALF C, P36