Commercially available NH2CONH2 is used to establish a salinity gradient solar pond in a small 1 m(2) outdoor tank. With a salinity difference of 35% between the upper and lower zone, a temperature difference of 23 degrees C was obtained without any instabilities in the gradient zone. The difference in concentration of solution required to sustain a temperature difference of 40 degrees C across the gradient zone is 520 kg/m(3). By economically using runoff into the fertilizer cycle of an agricultural system the estimated cost of fertilizer solar pond generated heat is Rs. 1.10/kWh.