curricuLAB

Grain size: Determines how much space there is between the grains in which water can be stored. Water in pores with a diameter of between 10 and 50 µm is not held in place by capillary forces; it seeps through the soil.
Humus: It soaks up water like a sponge.
Soil structure: A good balance between coarse and fine pores in the soil is the best way to store water. This is aided by earthworms and other soil organisms.

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