Studying: Use of solitary superphosphate fertiliser made making use of Eppawala rock phosphate like a supply of phosphorous for rice cultivation Apatite in Sri Lanka is mined from Eppawala (Eppawala Rock Phosphate or ERP). The finely ground product is made use of like a direct application fertilizer for tea, rubber https://urea-phosphate-exporter-i46801.snack-blog.com/35653388/the-tsp-for-organic-certification-sri-lanka-diaries