共 10 条
[1]
FOWLER WAYNE L., 1955, AGRON JOUR, V47, P430
[2]
GREEN JM, 1948, J AM SOC AGRON, V40, P58
[3]
HARRINGTON J. B., 1940, CANADIAN JOUR RES SECT C BOT SCI, V18, P578
[4]
JOHNSON I. J., 1940, JOUR AMER SOC AGRON, V32, P479
[5]
LANGHAM D. G., 1961, CROP SCI, V1, P376, DOI 10.2135/cropsci1961.0011183X000100050026x
[6]
LANGHAM DG, 1949, 8 C GEN P, P615
[7]
LONNQUIST J. H., 1964, CROP SCI, V4, P580, DOI 10.2135/cropsci1964.0011183X000400060009x