rawe nadep.pptx

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1. Bioved Research Institute of Agriculture Technology & Sciences Nadep composting Presented By Mr. Sawan Kumar Verma

2. NADEP Compost NADEP method of making miracle compost was first invented by a farmer named Narayan Deotao Pandharipande (also popularly known as “Nadepkaka”) living in Maharashtra (India). NADEP method uses a permanently built tank of mud or clay bricks , or cement blockettes. This is good where moisture is limiting, and is the best way to make compost after the rains have finished and during the dry season .

3. Introduction The NADEP method of organic composting uses a wide range of organic materials such as crop residues, weeds, forest litter and kitchen waste with an end-product of a fertilizer that serves as a good alternative to farmyard manure . The composting tank construction is a rectangular brick tank with a 90-120 day decomposition time.

4. Construction of NADEP Tank This method of making compost involves the construction of a simple, rectangular brick tank with enough spaces maintained between the bricks for necessary aeration. The recommended size of the tank is 10 ft (length) x 5 ft (breadth) x 3 ft (height ).All the four walls of NADEP tank are provided with 6// vents by removing every alternate brick after the height of 1ft. from bottom for aeration. Tank can be constructed in mud mortar or cement mortar.

5. Establishment Activities Raw materials required for filling NADEP tank Agricultural waste (Dry & green) – 100-150 kg. .

6. Cattle dung or biogas slurry – 98 – 100 kg

7. Fine sieved soil – 100-150 kg

8. Water – 1350-1400 litres

9. Filling of Tanks The important technique in the manufacture of Nadep compost is that the entire tank should be filled in one go, within 24 hours and should not go beyond 48 hours, as this would affect the quality of the compost. Before filling:  the tank is plastered by dilute cattle dung slurry to facilitate bacterial activity from all four sides . It is also filled in definite layers each layer consisting of the following sub layers.

10. The three layers used to fill the tank are as follows: First layer: use 100–150 kg of dry or mixed dry and green plant materials to make a layer 15–25 cm thick at the sides, and slightly thicker in the middle. Second layer: mix 80 kg of cow dung in 25–50 liters of water and sprinkle or scatter it over the plant materials so they get completely moistened. Third layer: cover the wet plant waste and cow dung or slurry layer with 50–60 kg of clean, sieved top soil.

11. Continue to fill the tank like a sandwich with these three layers put in sequence. Put more materials in the middle of the tank than around the sides. This will give a dome shape to the filled tank with the center 30–50 cm higher than the sides. Cover the last layer of plant materials with a layer of soil 7–8 cm thick. Make a cow dung plaster and cover the soil so that there are no cracks showing. The top of the filled tank can also be covered with plastic, particularly to protect the compost making process during rainy seasons

12. Maintenance After 15-30 days of filling the organic biomass in the tank gets automatically pressed down to 2 ft. After this filling the tank is not disturbed for 3 months except that it is moistened at intervals of every 6-15 days. The entire tank is covered with a thatched roof to prevent excessive evaporation of moisture. Under no circumstances should any cracks be allowed to develop. If they do, they should be promptly filled up with slurry

13. Benefits Reduced cash expenses on chemical fertilizer, improved soil fertility, increased yield . Supports organic crop production, reduced dependence on outside inputs . From each NADEP tank approximately 2.5 tons of compost is prepared within 90-120 days. The use of compost reduced the need for mineral fertilizer thus reducing production costs and outside dependence.

14. Thanks a lot...