Agricultural Development and Environmental Research American and Czechoslovak Perspectives: Proceedings of a Bilateral Workshop (1987) / Chapter Skim
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'PROBLEMS OF WATER POLLUTION RELATED TO AGRICULTURAL PRODUCTION'
'PROBLEMS OF WATER POLLUTION RELATED TO AGRICULTURAL PRODUCTION'
Pages 76-79
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From page 76... ...
In a broader sense, agriculture produces up to 25 types of various pollutants which may be divided, in principle, into five main groups: • wastes from large, domestic animal-breeding centers; • wastes from siloing; • industrial fertilizers; • chemical plant protection agents; • pollutants associated with agricultural equipment. In the first group of pollutants not only are liquid and solid excretions involved, but the pollution produced in maintaining agricultural facilities is also included.
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From page 77... ...
More than six million hectares of agricultural land are chemically treated in Czechoslovakia, with a consumption of 60-80 thousand tons of various chemicals. These include both combined industrial fertilizers and substances used for plant protection.
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From page 78... ...
These include preparations involving chlorinated hydrocarbons, organophosphates, bromine, and iodine compounds. Apart from their positive effect on crop production, they exhibit negative properties that are magnified by their incorrect use.
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From page 79... ...
In larger amounts, the particles subsequently form oil spots or an oil film on the surface of the water, which is often deposited on the shore and covers the macrovegetation. From the aspect of groundwater pollution the most dangerous pollutants are crude oil hydrocarbons because of their ability to move easily from the source of pollution.
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