| | - : soil melioration, reclamation, soil reclamation, land restoration, soil conditioning, soil amendment
- n.: melioration, improvement of soil, Soil improvement
| | | saline soil | cyclopedia | feed | | park | afforestation | Characters | | aesculapius | pedologist | Master life hierophant | | environmentally friendly agriculture | agrology | green vegetable | |
| | | ameliorant | melioration substance | chemistry melioration | | agricultural melioration | melioration Principle | irrigation melioration | | melioration hydrology geological survey | |
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