With the goal to have a more sustainable and ecologically friendly school, hydroponic agriculture with urine as fertilizer was proposed and carried out. The principle is simple, a layer of sand (10 cm) is laid on a plastic sheet and a slope allows the liquid fertilizer to flow slowly from the top to the bottom of this layer. This technique has many advantages: very little labour force needed, little water wasted and effective yield. To get rid of the issue of commercial fertilizer supply, urine is used instead. It is free, reasonably safe to handle and contains the elements required for the plants to grow. We call them fertilizer and the three most important are Nitrogen, Phosphorus and Potassium (N, P, K).

Four structures were constructed with four slopes in opposite directions oriented in both are in road side ofthe hostel entrance road. The total length is about 10 meters and the total width is around 1.2 meters. Water and fertilizer are supplied by 60 Litres tanks through a dripping pipe. The intended species to be grown are: beans, chilli pepper, tomatoes and green leaves like spinach. The girls were given courses on the management of this original garden through vocational training .