In the past decades, there has been an immense increase in the world population, leading to a demand for food to meet the needs of the population. It is necessary, as far as possible, to adopt new techniques of rapid multiplication and to look into organic agriculture to hope for the indefinite future of future generations. Organic agriculture is an alternative mode of production, without the use of synthetic chemicals. It is an approach that involves not only the plants and animals, but the whole environment where they live. Agrobiologists pay particular attention to the soil. Likewise, the protagonists of naturalist medicine refuse chemical therapies and advocate a good physiological state of living beings which reinforces their capacity of resistance against external aggressions.
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