共 11 条
- [1] EFFECT OF NITROGEN FERTILIZATION ON CERTAIN FACTORS OF A WESTERN NEBRASKA RANGE ECOSYSTEM [J]. JOURNAL OF RANGE MANAGEMENT, 1968, 21 (01): : 21 - +
- [2] COOVER JR, 1953, 97 TEX AGR EXP STA M
- [3] COMMERCIAL FERTILIZERS INFLUENCE CRUDE PROTEIN CONTENT OF 4 MIXED PRAIRIE GRASSES [J]. JOURNAL OF RANGE MANAGEMENT, 1967, 20 (02): : 96 - +
- [4] DUDLEY DI, 1953, 1579 TEX AGR EXP STA
- [6] LEHMAN DR, 1968, J RANGE MANAGE, V21, P71
- [7] MORRIS GF, 1969, J ASSOC OFF ANA CHEM, V52, P943
- [8] SEASONAL PROTEIN CONTENT OF 4 SOUTHERN MIXED PRAIRIE GRASSES [J]. JOURNAL OF RANGE MANAGEMENT, 1967, 20 (03): : 177 - &
- [9] RUMBURG C. B., 1961, AGRON JOUR, V53, P255
- [10] WHITEHEAD DC, 1970, 48 COMM AGR BUR B