Material used to enrich the land.
Anything added to the soil to maintain or increase its fertility. Fertilizers may be organic, that is, derived from once-living matter, as are manure, compost, and blood and bone; or inorganic (artificial), such as sulphate of ammonia or superphosphate, which are prepared in chemical factories.
In agriculture, materials added to the soil to provide elements essential to plant growth or to bring about a balance in the ratio of nutrients in the soil.
Anything added to the soil to maintain or increase its fertility. Fertilizer may be organic, that is, derived from once-living matter, as are manure, compost, and bone meal; or inorganic (artificial), such as sulphate of ammonia or superphosphate, which are prepared in chemical factories.