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BackgroundUnsafe and non-productive disposal of food waste pollutes the environment. Biodegradable food wastes have been composted and applied to soil as an amendment to improve the soil properties and fertility while improving environmental safety. In the Wondo Genet College of Forestry and Natural Resources compound, food wastes are unsafely deposited attracting wild animal who scavenge around the residence and cafeteria areas. This study analyzes selected plant nutrient in compost prepared from a mixture of food waste and cattle manure, and how the addition of the compost affects soil properties and crop yield.ResultsTotal nitrogen and organic carbon levels declined significantly after 70 days of applying compost and commercial fertilizer to soil due to leaching and erosion loss. No significant changes were observed in the other soil parameters. Significantly high maize yield was observed in plots treated with compost prepared by mixing 50 % food waste with 50 % cattle manure by volume (50FW50M) compared to the control and all other treatments. The compost prepared by mixing 25 % food waste with 50 % cattle manure by volume (25FW75M) showed significantly higher yield than compost prepared only from food waste (100FW) and the control.ConclusionInstead of dumping food waste and creating scavenging opportunity for wild animals and possible health issues for residents, the material should be converted to compost in the 50FW50M proportion. The cost benefit for this specific situation should be analyzed in future study and the compost should be tried on other crops besides maize.

environmental systems research

Exploring selected plant nutrient in compost prepared from food waste and cattle manure and its effect on soil properties and maize yield at Wondo Genet, Ethiopia