共 21 条
[11]
ERICKSON LC, 1948, J AM SOC AGRON, V40, P659
[12]
Finney DJ., 1947, PROBIT ANAL
[13]
HARRIS LE, 1942, B ORE AGR EXP STA, V403
[14]
KLINGMAN DL, 1947, J AM SOC AGRON, V39, P445
[15]
LHOSTE J, 1946, CR ACAD AGR FR, V32, P572
[16]
NOULARD L., 1949, Revue de l'Agriculture, Bruxelles, V2, P247
[18]
OSVALD H., 1949, Vaxtodling, V4, P100
[19]
SIBBITT LD, 1948, CEREAL CHEM, V25, P286