共 10 条
[1]
DOTZENKO A. D., 1959, AGRON JOUR, V51, P308
[3]
HILTON JAMES W., 1941, NORTHWEST SCI, V15, P86
[4]
KNIPE DUANE, 1960, JOUR RANGE MANAGEMENT, V13, P297, DOI 10.2307/3894784
[6]
POWELL LAVERNE M., 1956, AGRON JOUR, V48, P555
[7]
RIEDL WA, 1964, 425 WYOM AGR EXP STA
[10]
1948, 654 US DEP AGR MISC