Soil in the garden consists of three main layers. These are the
surface layer, the layer of decomposition of organic matter and
humus layer. Each has its role in the process of growth and
maturation of plants and is therefore very important, if the
soil structure allows it, the less you disturb the layers. If
the soil is poor in humus, compressed and difficult to process,
it requires additional cultural practices that will contribute
to improving the water-air system and improve soil fertility and
structure. The first, surface layer is a protective covering of
organic waste that can make leaves, cut grass and rough compost.
This layer is a barrier that prevents evaporation and
contributes to weed suppression. In the deeper layer is the
disintegration and decomposition of organic matter. The work
performed by bacteria, protozoa, algae, lichens, etc.. These
organisms are extremely sensitive and for their survival in the
soil is necessary enough moisture, heat and ventilation. In dry
land, the processes of decom