共 18 条
[1]
ABEL GEORGE H., 1961, AGRON JOUR, V53, P95
[2]
BORST HL, 1931, 494 B OH AGR EXP STN
[3]
BURLISON WL, 1940, 462 B ILL AGRIC EXP
[4]
CARTTER JL, 1963, SOYBEAN
[5]
CAVINESS CE, 1959, 88 ARK AGR EXP STN R
[7]
DIMMOCK F., 1953, CANADIAN JOUR AGRIC SCI, V33, P550
[9]
GRAY SG, 1955, CSIRO4 AUST DIV PLAN
[10]
HARTWIG EE, 1954, 943 CIRC US DEP AGRI