(PDF) A PRACTICAL MANUAL ON INTRODUCTORY AGRICULTURE .
Manures: Any organic material of animal or plant origin, added to the soil in order to improve the physical condition of soil and supply one or more plant nutrients to the soil is known as manure. There can be two types of manures. (1) Bulky organic manure These manures are bulky in nature because they contain small quantities of plant nutrients. Such manures are farm yard manure (FYM), farm ...