When considering the quantity of P flows as the country scale for Thailand found that agricultural and livestock system have connection and relationship in the form of P recycling in human ecosystem. By the P mass balance flow (Fig. 2) indicates the major P input, P output, P internal flows through the agricultural sector during the years 2008-2014. Each year, approximately 5 million tons of chemical fertilizer were imported from abroad for use in plant cultivation, and such fertilizer has phosphorus about 201,156 tons