Fertilizers used in agriculture. The main fertilizer used in agriculture: nitrogen and phosphorus compounds. Phosphorus in the Roussillon, your phosphate can adhere to the soil. It is the smallest section with water, so the substance that caused the problem is nitrogen. When it rains Rain water is washed to remove nitrogen flow along the surface of Earth. Down to the river and the canals allows algae to grow a lot of good. The water birth color. The smell and taste. When these algae dies, polluted water, carbon phenolic and lasung.
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