Bone meal is a type of organic fertilizer made from ground animal bones. It is commonly used as a source of phosphorus, which is an essential nutrient for plant growth. Bone meal is produced by heating or steaming animal bones to remove any meat, fat, and other tissue, and then grinding them into a fine powder.

Neem cake organic manure protects plant roots from nematodes, soil grubs and termites, probably due to its residual limonoid content. It also acts as a natural .