共 12 条
[1]
BOYD AEW, 1947, ANN APPL BIOL, V34, P634
[2]
FOISTER CE, 1943, AGRICULTURE, V50, P300
[3]
LANSADE M., 1949, BULL TECH INFORM INGENIEURS SERV AGRIC, V41, P419
[5]
MOOI J. C., 1950, Landbouwkundig Tijdschrift, V62, P712
[6]
PETHYBRIDGE GH, 1917, ANN GEN REP DEP AGR, V17, P601
[7]
PETHYBRIDGE GH, 1908, EC P R DUBLIN SOC, V1, P547
[8]
PETHYBRIDGE GH, 1917, SCI P R DUBLIN SOC, V15, P193