共 7 条
- [1] BOND JJ, AGRON J, V56, P3
- [2] BROWN PAUL L., 1959, AGRON JOUR, V51, P339
- [3] CHEPIL WS, 1955, USDASCSTP125
- [4] CHEPIL WS, 1963, 2195 USDA FARM B
- [5] LAUDE HH, 1955, 232 KANS AGR EXP STA, P21
- [6] MOLDENHAEUR WC, 1957, SOUTHWESTERN CROP ST, V11, P12
- [7] QUINBY JR, 1958, 912 TEX AGR EXP STA