共 10 条
[1]
[Anonymous], 1955, OFFICIAL METHODS ANA
[2]
ARNOLD WE, 1972, N CENT WEED CONTR C, V29, P19
[3]
ARNOLD WE, 1973, N CENT WEED CONTR C, V30, P7
[5]
FENSTER CR, 1970, 188 NEBR COOP EXT SE
[7]
PETERS RA, 1967, P NORTHEAST WEED CON, V21, P299
[8]
EFFECT OF DENSITY AND CONTROL OF CANADA THISTLEON PRODUCTION AND UTILIZATION OF ALFALFA PASTURE
[J].
WEEDS,
1967, 15 (02)
:138-+
[10]
1971, AGRICULTURAL STATIST