#meliorative

• Agro-ameliorative — Serving to improve the physical, chemical, or biological properties of degraded or productive soils to increase agricultural crop yields. The term describes complex structural measures, works, or techniques, such as drainage, irrigation, application of soil amendments, or planting protective shelterbelts.
• Ameliorative — Bringing a positive, laudatory, or appreciative nuance; used to describe a linguistic element, suffix, or semantic context that improves or softens the basic meaning of a word, transforming it into a meliorative form. In literary analysis and lexicology, the term describes the process through which a word's meaning evolves over time from a derogatory or neutral connotation toward a favorable one.