共 17 条
[1]
BLAKE GR, 1955, AM POTATO J, V32, P327
[2]
BRADLEY A., 1954, American Potato Journal, V31, P305, DOI 10.1007/BF02861598
[3]
DICKERSON WH, 1970, 595 W VIRG U AGR EXP
[6]
EPSTEIN E, 1974, 69 MAIN LIF SCI AGR
[7]
FULTON J. M., 1955, CANADIAN JOUR AGRIC SCI, V35, P552
[8]
HUNT RG, 1976, ASCE ANN CONVENTION
[9]
JACOB W. C. et al., 1952, American Potato Journal, V29, P292, DOI 10.1007/BF02885266
[10]
MURPHY HJ, 1975, 714 MAIN LIF SCI AGR