The key role of inorganic fertilizers (NPK) in the phenomenal
growth of food grain production is well established [2]. However,
majority of the nitrogen is made from natural gas which is subject
to price change and availability of methane, whilst, the global
potassium and phosphorous mines are set to run out in less than a
century [3]. Besides, the regular usage of inorganic fertilizers
contributes to a progressive increase in soil acidity. These factors
have made many farmers switch over to organic farming. However,
the progress of organic farming has been very slow due to rapid
decline in organic raw materials such as animal wastes, crop
residues and green manure [4]. The application of fresh human
urine as a source of plant nutrient is rapidly growing in agricultural
practices, and has already been successfully exploited in many
countries for cultivating a wide variety of crops [5–7]. The results
validated that the crops grown using human urine, recorded a
higher yield with greater nutritional value and taste similar to
crops grown in normal soil. In addition, they do not pose any
significant hygienic threat or leave any distinct flavor in food
products.