共 33 条
- [3] Alway FJ, 1917, SOIL SCI, V3, P9
- [4] ALWAY FJ, 1913, NEBR AGR EXP STA RES, V3
- [5] Balls W.L., 1919, COTTON PLANT EGYPT
- [6] The relation of leaf size to root structure in trifolium repens [J]. JOURNAL OF ECOLOGY, 1934, 22 : 271 - 278
- [9] CANNON WA, 1925, CARN I WASH PUBL, V368
- [10] CLEMENTS FE, 1929, CARN I WASH PUBL, V398