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.