共 8 条
- [1] GROBBELAAR W. P., 1963, MEDEDEL LANDBOUWHOGESCH WAGENINGEN, V63, P1
- [2] KETCHESON J. W., 1957, CANADIAN JOUR SOIL SCI, V37, P41
- [4] KING K. M., 1963, CANADIAN JOUR PLANT SCI, V43, P428
- [5] KRISTOFFERSEN T, 1963, PHYSIOL PLANT S1
- [6] Nielsen K. F., 1966, Soils and Fertilizers, V29, P1
- [7] SHTRAUSBERG D. V., 1958, Fiziologiya Rastenii, V5, P228
- [8] SHTRAUSBERG DV, SOILS FERT, V21, P2277