EM-Agriculture and the environment, page no 64

The practice of growing a series of different types of crops in the same area in sequenced seasons.

But if we continually growing crops at the same plot of land. This causes:

• A build-up of diseases in the soil that affect plant growth.

• An increase in the pests that attack the plants.

• A depletion in soil nutrients, because the same crop uses the same crop.

Moving a crop to a different piece of land each year means that:

• Diseases in the soil affecting that plant are plant are left behind and have nothing to infect.

• Pests need to find the new site and so their numbers are reduced.

• The soil in the new plot is more likely to have the nutrients the crop needs.

  
  

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