In the field of agriculture and gardening, organic nutrient is a common term referring to material derived from natural sources that enhances plant growth and development. However, there are several other synonyms for this term that can be used interchangeably. These include natural fertilizers, bio-fertilizers, compost, green manure, and humus. Natural fertilizers refer to organic materials such as manure, bone meal, and fish emulsion, while bio-fertilizers are microorganisms that help plants to absorb nutrients more efficiently. Compost is made from decaying organic matter, green manure is grown and then tilled back into the soil, and humus is a type of soil that is high in organic matter. All of these terms are associated with organic nutrient, with each type providing distinct benefits to plant growth and soil health.