共 29 条
- [1] ANDERSON MS, 1926, US DEP AGR B, V1452
- [2] BAVER LD, 1930, M AM CHEM SOC ATL AP
- [4] BRAY RH, 1929, ANAL ED IND ENG CHEM, V1, P144
- [5] BURGESS PS, 1929, ARIZ AGR EXP STA TEC, V28
- [6] CONREY GW, 1927, P INT SOC SOIL SCI, V2, P212
- [7] GERICKE S, 1927, Z PFLANSENERNAHR DUN, V9, P20
- [8] GREEN TC, 1929, OHIO AGR EXP STA B, V431
- [9] HARADA M, 1929, P INT SOC SOIL SCI, V4, P139