Fertilisers

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  • Fertilisers
    • What fertilisers provide plants with
      • Nitrogen, phosphorus and potassium for growth
      • The fertiliser is dissolved in water to be taken up by plant roots
    • Ammonia in fertilisers
      • Ammonium sulfate is made by neutrilising sulfurc acid with ammonia
      • Ammonium sulfate is made by neutrilising sulfurc acid with ammonia
      • Potassium nitrate is made by neutrilising nitric acid with potassium hydroxide
    • Eutrophication
      • Fertiliser runns off into rivers and streams
      • The level of phosphates and nitrates in the water increases
      • Algae multiply rapidly, creating algal bloom
      • This blocks out light and plants die
      • Aerobic bacteria feed on the dead plants and multiply
      • These bacteria use up all the oxygen
      • As a result, fish and insects in the water die

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