Give one function which is not performed by the humus.

Humus has no role in destroying or killing the harmful bacteria present in the soil.

Role and function of humus

Humus is a complex organic substance resulting from the breakdown of plant material in a process called humification. This process can occur naturally in soil or the production of compost. Humus is extremely important to the fertility of soils in both a physical and chemical sense.

  • Humus contains many useful nutrients s for healthy soil. One of the most important is nitrogen .
  • Nitrogen is a key nutrient for most plants. Agriculture depends on nitrogen and other nutrients found in humus.
  • When humus is in soil, the soil will crumble.
  • Air and water move easily through the loose soil, and oxygen can reach the roots of plants.

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