Click below to read a study published in the Elsevier.  Phosphorus is a non-renewable resource and the demand for it continues to rise. Phospohorus is found in sewage sludge and can be recycled. This study analyzes the effects of sludge incineration ash on the growth of ryegrass and the status of phosphorus in the soil. 

Influence of Sludge Incineration Ash on Ryegrass Growth and Soil Phosphorus Status


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