Introduction Organic Manures obtained either from cattle or plants. Use of organic manures by farmers is an age-old practice in agriculture. Organic manure's – maintains better structure of soil improves water holding capacity of light soils improves aeration in heavy soils. Food materials for millions of microbes Microbes essential for mineralization process Improves availability of nutrients from fertilizer sources. Organic Manures Bulky Organic Manures FYM, Poultry manure, Municipal wastes, sheep & goat Manure's, vermiculture etc., Concentrated Organic Manures Oil cakes (edible and non-edible) Nutrient Composition Organic Sources

Material Nitrogen (N) (per cent) Farm Yard Manure 0.5 – 1.5 Compost (Urban) 1.0 – 2.0 Compost (Rural) 0.4 – 0.8 Green Manures 0.5 – 0.7 Non-Edible Cakes   Castor cake 5.5 – 5.8 Cotton seedcake (undecorticated) 3.9 – 4.0 Mahua cake 2.5 – 2.6 Karanj cake 3.9 – 4.0 Neem cake 5.2 – 5.3 Safflower cake (undecorticated) 4.8 – 4.9

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