Potassic compost is a valuable soil amendment which can be prepared by mixing N rich farm wastes, cattle dung, sugar cane trash, soil, potassium rich ores, banana wastes etc. The waste materials are first decomposed with the help of fungus/bacteria using 400ml liquid cultures/tonne of waste. The decomposer culture decomposes the materials in about 45 days. About 60% moisture is maintained throughout decomposition process.
Once the material is decomposed, potash mobilizing bacteria is to be added 200ml/tonne of waste material and allowed to stand for 20 days. The compost will be rich in potassium apart from hormones required for plant growth.