The alternative systems of agricultural production that agree with the environment are called
on one hand ecological, biological, organic and biodynamical, and on the other one natural.
Terms like ecological, biological, organic agriculture, biodynamic or biological - dynamical
define an agrarian system, which main goal is to obtain products with high
quality, respecting the environment and preserving the land fertility, by means of the
ideal resources utilization and without employment of chemical products of
synthesis (Regulatory Council of the Ecological Agriculture, 1990). This way there remains
legally definite the agriculture which generic denomination will be ECOLOGICAL.
There exist a series of resultant problems for using chemical fertilizers,
like nutrients loss for lixiviation, waters pollution, biological activity reduction
in our land, etc. The last point is the main one if we are trying to preserve our lands and produce
as much as possible, or what the same thing is: lands alive in good conditions (physical and
The ecological agriculture offers a logical solution and with scientific foundation, which takes
root in the active nourishment of the soil across the supply of organic matter (humus) in his
different configurations, without forgetting the mineral contributions in the shape of mineral
pulverized rocks. In this way, the main sources for humus that appear in the Regulatory
Council of the Ecological Agriculture are:
- Manure separated into its elements (decomposed) by fermentation in heap, in hole or in the surface.
- Residues of crops.
- Green credits.
- Straw and quilted others.
- Compost done from organic residues.
- Humus of worm.