Due to the unavailability of an adequate amount of chemical fertilizers in time and subsequent increase in the price of chemical fertilizers, increasing the use of organic fertilizers has become the only alternative for farmers to fulfil plant nutrients demand and to sustain soil fertility. For a country like Nepal where transportation is difficult and the supply of chemical fertilizer is entirely dependent on import, preparation and utilization of organic fertilizer at the local level are very important to follow sustainable agricultural practices. However, the scientific method of composting is not properly followed by farmers. Collecting litter and dumping it in a pit itself is called composting by most farmers (Jaishy et. al. 1997). The manure is not turned over and loss of nutrients by leaching and runoff is high. Sharma, 1983 as cited by Khadka and Chanda 1987, estimated a loss of 50% nitrogen and 90% potash from compost heaps, particularly during the rainy season.
Reference: GOVERNMENT INTERVENTION ON ORGANIC FERTILIZER PROMOTION: A KEY TO ENHANCING SOIL HEALTH AND ENVIRONMENT
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