共 25 条
[11]
FEUHRING HD, 1964, SOIL SCI SOC AM P, V28, P79
[12]
FONG KH, 1969, J AM SOC HORTIC SCI, V94, P341
[13]
HAWKINS ARTHUR, 1941, AMER POTATO JOUR, V18, P234, DOI 10.1007/BF02886544
[14]
HOAGLAND DR, 1938, 347 CAL AGR EXP STA
[15]
KLOSTERMAN HJ, 1956, N DAKOTA BIMONTHLY B, V19, P24
[20]
ZINC EXPERIMENTS ON POTATOES IN SAN-LUIS-VALLEY OF COLORADO
[J].
AMERICAN POTATO JOURNAL,
1970, 47 (11)
:435-+