共 10 条
- [1] ALLRED BW, 1956, GRASSLANDS GREAT PLA
- [2] COOK CW, 1950, 344 UT AGR EXP STA B
- [3] FUDGE JF, 1945, 669 TEX AGR EXP STA
- [4] RODGERS JD, 1966, THESIS TECHNOLOGY CO
- [5] SAVAGE DA, 1947, USDA943 TECH B
- [6] VAN DYNE GEORGE M., 1964, JOUR RANGE MGMT, V17, P7
- [7] WATKINS WE, 1943, 311 NEW MEX AGR EXP
- [8] 1945, OFFICIAL TENTATIVE M
- [9] [No title captured]
- [10] 1958, NUTRIENT REQUIREMENT