Neem Cake (Neemkhali) as per IS 8558

Neem cake, or neem khali, specified (for manuring), is an organic manure derived from the residue of neem seed after oil extraction, used to provide a natural source of nutrients and act as a crop protector from pests like nematodes. The standard defines general requirements for the quality of neem cake as a manure, and while specific parameters like minimum Azadirachtin content, Nitrogen, Phosphorus, and Potassium levels are typically included in specifications for the product itself, the IS 8558 standard provides the overarching framework for its use as an organic manure.