what is manures? what are the uses of manures in crop production and management?
Manure is a partially decomposed organic matter derived from plant and animal wastes which is added to increase the fertility of the soil.
Manures are of four types depending on the way they are produced and the starting materials. These are:
1) Farmyard manure
2) Compost
3) Vermicomposting
2) Green manure
Uses of manures are:
1) It provides nutrients; it enriches soil with nutrients.
2) Organic matter : It provides organic matter (humus) to the soil which increases the water retention capacity of soil, soil aeration and improves soil texture.
3) Food for soil organisms: It provides food for soil organisms like earthworms which improve fertility of soil.