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The pH of the Soil

We call the soil alcaline if its pH is above 7.0 and acid if it is below this. If it has a of 7.0 exactly, it is defined as neutral.
modifié le 04/01/2009

The physical constituents of the soil

Your soil contains four basic constituents:Humus, which is made up of all the organic elements. It comes from the decomposition of vegetable matter produced by the soil's natural bacteriae. It retains water and fertilizing elements.
modifié le 30/10/2008

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