The organic farming has recently been introduced into Korea by the mass
_ media mainly._ through news papers,_ TV,.-_and the farmers who are interested in the organic farming abroad. The organic farmers wish to avoid the use of chemical fertilizers and pesticides that demage soil and create toxic effects in the wild life and human body. They are also very much concerned about the adding humus and other organic matters to soil in order to improve fertility, energy conservation, and proper nutrition. The organic farming has been mostly conducted in Korea in the workshop of Korea Association of Agricultural Specialists.
With the ecological studies, we have learned that there are much differences of the divergence of species, number of species appearance among perennial and annual herbs, species population fluctuation, and entrophication between the organic and conventional farming.
In conventional farming, we found that the mercury and cadmium in the soil of An Yang River area are over 0.2 ppm and 2 ppm respectively, and the
cadmium in the rice over 1 ppm, although the heavy metal contents in the-
T
´irrigation water of rice fields are mostly below the control limit of Korean. Government.
Even in the organic farming, the cadmium contents in the ´soil of the sea. side are over -1 ppm. This shows the cadmium are widely distributed through. this country.
With the advent of the energy crisis, farmers have been facing. at present the shortage of fertilizers and pesticides that require petroleum as a source of both the raw materials and the heat in the process of the manufacture. The organic farming is the urgent problem of our study in order to solve the energy crisis which the present world has to confront.
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