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