Characterization of human urine: An alternative to plant nutrient sources in Sustainable Agriculture
H Yogeeshappa, CA Srinivasamurthy
The concentration of nutrients in urine from persons of vegetarian and non-vegetarian diet and of different age groups were conducted with objectives of characterize human urine and to study the changes in nutrient composition when stored under open and closed conditions. Human urine was slightly acidic in reaction (5.73, 5.56 and 5.59, from persons of <20, 20 to 40 and >40 years age group, respectively), and has appreciable amount of salts 6.36, 7.50 and 7.24 dS m-1 from <20, 20-40 and >40 years age group). The nitrogen varied slightly with age that is 0.30, 0.33 and 0.33 per cent N whereas, P and K content was almost half of that of nitrogen, 0.19, 0.17 and 0.16 per cent P2O5 and 0.16, 0.17 and 0.19 per cent K2O, in urine from persons of < 20, 20 to 40 and >40 year age group, respectively. The concentration of calcium (11.80, 12.60 and 17.00 meql-1) and magnesium (23.70, 29.23 and 36.94 meqL-1) was found to be substantial. Human urine had anions like sulphate (0.12, 0.14 and 0.12 per cent), bicarbonate (9.09, 10.37 and 9.60 meqL-1) and chloride (28.65, 32.66 and 31.41 meqL-1). Human urine also contained appreciable amount of micronutrients. The zinc concentration with an average value of 18.02, 19.70 and 20.90 mgL-1. The iron content with mean value of 120.44, 122.40 and 126.90 mgl-1. The manganese average value of 22.36, 22.42 and 23.26 mgL-1. The copper content with the mean of44.83, 45.83 and 46.69 mgl-1 for samples of <20, 20 to 40 and >40 years age group respectively. Later on 30 and 60 DAI all the samples from different categories recorded alkaline in reaction. The loss of Nitrogen content was recorded in case of openly incubated condition as compared to closed condition.
H Yogeeshappa, CA Srinivasamurthy. Characterization of human urine: An alternative to plant nutrient sources in Sustainable Agriculture. International Journal of Ecology and Environmental Sciences. 2020; 2(4): 49-54.