| Type |  Book |
| ชื่อเรื่อง | Potassium in ecosystems : biogeochemical fluxes of cations in agro-and forest-systems : 23rd colloquium of the International Potash Institute, Prague, Czechoslovakia, October 12-16, 1992 / International Potash Institute |
| ผู้แต่ง | International potash institute. colloquium (23rd : 1992 : Prague, Czechoslovakia) |
| พิมพลักษณ์ | Basel, Switzerland : Institute, 1992 |
| รูปเล่ม | 457 p. : ill. ; 23 cm |
| หัวเรื่อง | Biotic communities --Congresses [] |
| | Potassium in agriculture --Congresses [] |
| | Soils --Potassium content --Congresses [] |