共 15 条
[2]
Adams J, 1923, ANN BOT-LONDON, V37, P75
[3]
Garner WW, 1923, J AGRIC RES, V23, P0871
[4]
Garner WW., 1920, J AGR RES, VXVII, P553
[6]
HAYDEN JLR, 1918, GEN ELECTR REV, V21, P232
[7]
KEEBLE F, 1910, PLANT ANIMALS
[8]
KRAU EJ, 1918, ORE AGR EXP STA B, V149
[9]
Lubimenko V, 1923, CR HEBD ACAD SCI, V176, P1915