The main cause of loss of phosphorus from the soil of excess phosphorus needs of the crop. Excess soluble phosphorus will flow out with the water. The phenomena and causes neutrophils applications. (Eutrophication) , which has a direct impact on water quality , such as Constructed wetland sludge, a constructed wetland that was built by the The King’s Royally Initiated Laem Phak Bia Environmental Research and Development.