共 37 条
[2]
CLIPPING HEIGHT AND FREQUENCY INFLUENCE GROWTH RESPONSE OF NITROGEN-FERTILIZED BLUE GRAMA
[J].
JOURNAL OF RANGE MANAGEMENT,
1974, 27 (04)
:308-309
[3]
BRANSON F. A., 1956, Journal of Range Management, V9, P86, DOI 10.2307/3894556
[4]
COOK CW, 1971, 483 UT AGR EXP STA B
[5]
COOK CW, 1966, 31 UT AGR EXP STA RE
[6]
INFLUENCE OF SPRING, FALL, AND SPRING-FALL GRAZING ON CRESTED WHEATGRASS RANGE
[J].
JOURNAL OF RANGE MANAGEMENT,
1970, 23 (02)
:103-&
[7]
CLIPPING EFFECTS ON SEEDED FOOTHILL RANGES IN UTAH
[J].
JOURNAL OF RANGE MANAGEMENT,
1972, 25 (06)
:426-&
[8]
DWYER DC, 1963, B614 OKL AGR EXP STA
[10]
Fisher A. G, 1966, THESIS COLORADO STAT