Waste management is the collection, transportation, processing, recycling or disposal of waste materials. The term usually relates to materials produced by human activity, and is generally undertaken to reduce their effect on health, the environment or aesthetics.Human urine can be well harnesssed through proper waste management method. Waste management is also carried out on human urine to reduce the materials' effect on the environment and to recover resources from them. Human urine is liquid waste product of the body secreted by the kidneys by a process of filtration from blood and excreted through the urethra. This waste is eventually expelled from the body in a process known as urination.Most commonly the excretion of urine serves for flushing waste molecules collected from the blood by the kidneys, and for the homeostasis of the body fluids.This liquid waste product of the body is a potential source of fertilizer which is more environmental-friendly compared with chemical fertilizer if properly harnessed.

This study was designed to determine the utilization of human urine in the context of waste mangement. The study was experimental in design and was conducted under the green house condition. Lemongrass was grown with three treatment media- inorganic fertilizer, urine, compost and ordinary soil as control. Each treatment was carried out by mixing 12.5g of organic manure with 5kg of soil, 0.25g of NPK with 5kg of soil, while 125mls of urine was mixed with 5kg of soil. The growth parameters which include number of leaves, number of stolons and height of the plant were monitored and determined for 18 weeks.

The results showed that the mean number of leaves grown by the lemongrass treated with urine, inorganic fertilizer, compost and the control soil were 31.0, 30.7, 17.8, 14.6 respectively (P<0.05). The mean number of stolons of the lemongrass treated with urine, inorganic fertilizer, compost and the control soil were 4.9, 4.1, 2.7, 2.1 respectively (P<0.05). The mean height of the lemongrass in centimeter treated with urine, inorganic fertilizer, compost and the control were 71.6, 80.9, 93.3 and 63.9 respectively (P<0.05). The analysis showed that the growth of lemon grass were slightly higher with urine than with conventional fertilizer.

Human urine could used as a fertilizer for lemongrass through proper waste management method and the quality of fertilizer it produces is better than the conventional ones.