Each planted vegetable starts to "explore" or thickness of soil that can vary from 20 to 50 cm. Root development has as its main purpose is to absorb nutrients including examples are important for water and air.
not forget the important work done by many soil organisms in the process of
nutrition of plants.
So the presence and exchange of water and air by the action of microorganisms are the basic prerequisites for a healthy growth and healthy Plant.
What is a clay soil and the risks to root .
A clay soil is composed of tiny particles of clay with a diameter less than 0.002 mm. Because of its constitution as a clay soil has a very low porosity that makes it difficult and slow air circulation and the absorption water. The clay soil is also called "heavy soil" for the resistance that provides for processing.
Its low porosity makes it difficult and slow circulation of air and water at the roots: the water is stagnant for a long time and prevents not only air circulation but also the disposal of gases formed in the soil as a result of the metabolism of various organisms that live in soil.
The lack of oxygen affects the proper functioning of the cells of the root system of plants, this means lower absorption of water and mineral elements by the root hairs. In addition you may experience an abnormal accumulation of carbon dioxide produced by microorganisms and the activity itself radical, which can further reduce the root activity. You can then add instances of real roots of poisoning in relation to the formation of toxic substances including acid sulfide.
Given the premise and given the characteristics above can be said that the fine clay soil if it is not suitable for cultivation.
As fine a heavy soil
interventions that make up a heavy clay soil, or should aim to reduce stagnant water, increasing the circulation of air in the soil, to do this you need to "lighten the soil ".
E 'common thought is to use the sand, but the contribution of this material would only worsen the situation because the small grains of sand should be to block the few spaces in the soil, thus creating a soil more resistant.
Before crops and should be a working deep (80-90 cm) of soil, and at the same time bury a massive amount of cow manure filled with straw (800-1000 kg per hectare). The straw in this case will be the element that will give greater weight wing ground.
E 'should be given a slight slope to the ground, so that water can be "channeled" toward the periphery of the cultivated.
The cultivated area will then be organized into beds rialzale (see how to make a flowerbed synergistic) so that the roots are to have a thickness of ground raised above the average share of the land where water may stagnate. Recall that
raised flower bed and built in such a way that the soil is never walked on offering excellent permeability for water and air.
E 'should dig the air outlets for transplantation without the use of awls and drills, in fact, these tools will create a little hole with smooth sides that with the hardening of the land could turn into a "straitjacket" that prevents ; root development.
Finally all the work will be made of coarsely ground, that is, avoiding the use of drills Instead of using forks foraterra. A working too fine soil causes the hardening and re-consolidation of the same, negating all the work done until now.
