Upload NowAfter reading this article you will learn about night soil, sewage and sludge. Night Soil: Night soil is human excreta, which is very rich in plant nutrients. Agricultural chemists have found that fresh human faeces contain about 1.5 per cent N, 1.1 per cent P2O5, 0.5 per cent K2O and 1.0 per cent CAO. Although […]
Night Soil, Sewage and Sludge
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Design of Bio-Gas Plant (With Diagram)
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After reading this article you will learn about the design of bio-gas plant with diagram. The bio-gas plant has been diagrammatically represented in the Fig. 11.1. The size varies with amount of cow dung available. If 50kgs of dung is available from three animals, the bio-gas plant consists of a masonry fermentation tank or a […]
Green Manure: Crops, Techniques and Advantages
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After reading this article you will learn about:- 1. Important Green Manuring Crops 2. Important Green Leaf Manuring Plants 3. Technique of Green Manuring 4. Advantages and Disadvantages 5. Economics. Important Green Manuring Crops: Green manuring crops must grow rapidly on varieties of soil and must decompose quickly enough to release the nutrients they contain […]