The accelerated growth of the human population and urbanization of it, poses a great poblem food already this feeling in some parts of the planet, from the year 2000, 2800 million people live in modern cities, this figure doubles the number of people living in the countryside.
The production of food has also declined taking techniques that employ high technology and toxic fertilizers to be able to increase the production of food.
The big problem is that the big cities are not producing all food need, are absolutely dependent on the resources that derive from the environment in which they find themselves, so as depleting resources cities increasingly must go away to get the vital resources on which they depend.
The hydroponic foods are grown using a special technique that does not require the use of fertilizers or industrial chemicals, instead used something called substrate which is not more than half inherte in which holding cultivation.
The crop is fed directly by a mixture of nutrients that normally contains land for the normal growth of the plant.
The hidrophonia is not a new technique, has been used by humans since Babylonian because of the dryness or shortage of fertile soil.
Using automated control means to maintain adequate levels of nutrients in plants or using manual means of control can lead to a stable production of food per family nucleus, this would be the principle of self-sufficiency food in the cities, where each family of the city produces a stable quantity of food and could use these for their healthy diet besides trade surplus with other families or in a common market of food in the cities, this would Lighten the burden of food depending of the camp and would create self-producers food cities have not only industrial processing centers.
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javico40
Student at Universidad del Zulia
Take care of the enviroment because is the only value thing that we have.
August 2008 (4)
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