inorganic fertilizer
Technical term used in agriculture and chemistry to refer to chemically synthesized or mineral-based fertilizers, as opposed to organic ones.
Inorganic fertilizers act quickly but can also damage the soil.
有機肥料 means organic fertilizer, made from natural materials like compost or manure, while 無機肥料 is chemically synthesized.
Compound of 無機 (inorganic) and 肥料 (fertilizer). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation.