Since the Green Revolution (Green Revolution) in the past year.1960 onwards, the fertilisers is a factor in the increase the amount of agricultural products nutrients, phosphorus is a major plant for plant phosphorus is an element Ajarn-0.5 in the growth of the plant will be used to use phosphorus phosphorus in volume if it is not enough to be effective, the growth of the plant plant failure in general will be vacuum phosphorus from the soil in the form the basic mono phosphate ion (monobasic orthophosphate ion,2 H PO 4-) and in the form the basic organizer. phosphate (dibasic orthophosphate ion,42 HPO -), but there is always common ground phosphorus in the form of other plants are not able to take it, so the fertilizer in the form of a phosphate plant can be used to land, it is necessary for the cultivationYou can change, but there are some parts in the form that is not Water Soluble (Vasin Thaithae,2007)
phosphorus is an element that does not have the status of a Chemical fertilizer phosphorus gas produced from rock phosphate which has come from the mining results in current forecasts suggest that phosphorus reserves that can be used in agriculture will expire in the next 50 - 100 years.You can use it, and there is no expiration. The results will be in accordance with the substitute for phosphorus, and after the backup, and then go to all of the world's population is 2 in 3 food shortage due to agricultural products decreased (Cordell et al., 2009), therefore, slowing the loss of phosphorus and therefore are the main issue in the study of this study
framework.The main cause of loss of phosphorus from the soil, fill up the phosphorus needs of the plant Water Soluble phosphorus (Excessive soluble phosphorus), this will flow out with water and cause the phenomenon call ฟิเคชั่น (Eutrophication).For example, a pool of emerald pool has been built in King Mongkut's University of Technology Thonburi Emerald pool is wastewater from the building and the rain water flow through a gardening in the area around the rain and wastewater contaminated with phosphorusMake the Water Soluble phosphorus is used in the growth of the plant, especially algae, water phosphorus in soil and sediment phosphorus accumulation in the dead algae cells to be submerged and accumulated sludge. Helen (Asadorn Kammuang,2010.)
sludge lane in the pool, it is the source of the phosphorus fertilisers can be used instead.the mechanisms of sediment phosphorus modified to suit the earth (M) a very small quantity of agricultural products that have been interested in this project is the stable phosphorus with alkaline substances (alkaline material) upgrade process stability, alkalineand let it out slowly through the sludge lane, it has features like the stable phosphorus fertilizer slow melt (Charunya,2009.)
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