Sonnet 43 and Hour

What are Fertilisers?

Fertilisers increase crop yields but cause the problem of eutrophication when they're washed into rivers and lakes by rainwater.

How do Plants Absorb Fertilisers

Fertilisers make crops grow faster and bigger so that crop yields are increased. They are water-soluble minerals. They must be able to dissolve in water so that plants can absorb them through their roots.

What is needed for healthy plant growth?

Fertilisers provide plants with the essential chemical elements needed for growth particularly nitrogen for proteins, which are needed for cell growth, phosphorus for respiration and growth and potassium for respiration and photosynthesis.

Examples of fertilisers, their formula and the essential elements

Fertiliser | Formula | Essential elements |

Ammonium nitrate | NH4NO3 | nitrogen |

Ammonium phosphate | (NH4)3PO4 | nitrogen and phosphorus |

Ammonium sulfate | (NH4)2SO4 | nitrogen |

Urea | (NH2)2CO | nitrogen |

Potassium nitrate | KNO3 | potassium and nitrogen |

What are Fertilisers?

Fertilisers increase crop yields but cause the problem of eutrophication when they're washed into rivers and lakes by rainwater.

How do Plants Absorb Fertilisers

Fertilisers make crops grow faster and bigger so that crop yields are increased. They are water-soluble minerals. They must be able to dissolve in water so that plants can absorb them through their roots.

What is needed for healthy plant growth?

Fertilisers provide plants with the essential chemical elements needed for growth particularly nitrogen for proteins, which are needed for cell growth, phosphorus for respiration and growth and potassium for respiration and photosynthesis.

Examples of fertilisers, their formula and the essential elements

Fertiliser | Formula | Essential elements |

Ammonium nitrate | NH4NO3 | nitrogen |

Ammonium phosphate | (NH4)3PO4 | nitrogen and phosphorus |

Ammonium sulfate | (NH4)2SO4 | nitrogen |

Urea | (NH2)2CO | nitrogen |...