ahmedabad the amc has started an experiment at pirana landfill site in which 85 tonnes of discarded supari betel nut will be used to make fertilizer the amcs solid waste department has dug holes at the dumping site and have buried 85 tonnes of discarded supari and have sprinkled cow urine on it to turn it into fertilizeran official of the solid waste department who did not wish to be named said that a few days ago a trader from the city had contacted the department saying that he had around 85 tonnes of supari which had got rotten and can not be sold he asked permission to discard this rotten stock at pirana landfill site we passed on this information to our garden department and inquired whether this stock can be of any help we were told that supari can be used to make fertilizers the official saidan official from the amcs parks and garden department said that they have buried the discarded supari in pits made at pirana we will regularly sprinkle cow urine on these pits in around 120 days we will have fertilizer which will be used at public gardens the official said