Organic manure improves soil quality. Continuous addition of manures, such as farm yard manure & compost in soil increased soil organic carbon content, as well as population of microorganisms, playing an important role in nitrogen & phosphorus transformations. Non-edible oil cakes, such as Neem cake and Mahua-cake regulated the process of ammonification & nitrification & thus helped in increasing fertilizer nitrogen use efficiency. Crop residue incorporation in situ 3 to 4 weeks prior to the sowing of crops in a sequence did not adversely affect its crop yield. In acid soils, crop residue recycling improved pH and organic matter content. Green biomass of weeds like Eupatorium, Lantana & Ipomea and leaves of Karanj & water hyacinth proved a good source of organic matter & nutrients for use in agriculture. Organic agriculture offers trade opportunities for farmers in the developing and developed countries. This market of organic products is expected to grow globally in the coming years and high growth rates over the medium term (from 10-15 to 25-30 %) are expected. Organic farming is being advocated in certain areas and selected crops having export potential. Thus there is an urgent need to devise organic produce protocols and package of practices for different agro-eco regions by combining existing ITK & modern technological approaches