共 22 条
[1]
BRADFIELD R, 1943, CITED INDIRECTLY
[2]
DOUGHTY J. L., 1941, SCI AGRIC [OTTAWA], V21, P429
[3]
Hill HH, 1926, J AGRIC RES, V33, P0077
[4]
JACKS GV, IMPERIAL AGR BUR JOI, V6, P47
[5]
JACKS GV, 1944, IMPERIAL AGR BUR JOI, V6
[6]
KRASSILNIKOV N, 1944, MICROBIOLOGY, V13, P197
[7]
MAYNARD LA, 1917, CORNELL U AGR EXP ST, V394
[8]
MERKLE FG, 1918, J AM SOC AGRON, V10, P281
[9]
NORMAN ARTHUR GEOFFREY, 1933, SCI PROGRESS, V27, P470
[10]
PAVLYCHENKO TK, 1942, NAT RES COUNCIL CANA, V1088