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Fertilizers And Pesticides Essay

1040 words - 5 pages

Fertilizes and pesticides have been really important to farmers all over the world and the consumption of such chemicals increase every year even though in Greece the consumption decreases. “Fertilizers are any solid, liquid or gaseous substances containing one or more plant nutrients in known amount, that is applied to the soil, directly on the plant (foliage) or added to aqueous solutions (as in fertigation) to maintain soil fertility, improve crop development, yield and/or crop quality” (International Fertilizer Industry, No Date). From the other hand “pesticides are chemicals used to prevent, destroy, or repel pests” (EPA, 5/9/2012). Fertilizes and pesticides have a big history which ...view middle of the document...

Obviously the most important hazard for human health caused by pesticides is cancer. Organizations have found that people expose to pesticides are most likely to have cancer so farmers must be really careful and use the right safety equipment when they use pesticides. Pesticides have also a negative effect on the environment, the most hazardous ones are that pesticides kill microorganisms and pollute the water and solid which will harm your cultivation. In my opinion the biggest problem is cause by DDT which is bio magnification. "Bio magnification is the sequence of processes in an ecosystem by which higher concentrations of a particular chemical, such as the pesticide DDT, are reached in organisms higher up the food chain, generally through a series of prey-predator relationships” (Oxford University 2008).
According to studies the first use of fertilizers was not for an agriculture use, in 19th fertilizers were used to treat bones. Later this century scientist found out nitrogen’s huge role in plant growth, and thus the discover nitrogen fixation which is the ability to absorb nitrogen from the air and transform into a substance that plants can use. In 1990 Fritz Haber a German chemist found the process to synthesize pant available nitrate from the air. Synthetic fertilizers “grew” popular after the WWI, because facilities that were producing ammonia and synthetic nitrate for explosive were converting to the production of nitrogen fertilizers. Fertilizers as well as pesticides have also negative effects to the environment and humans. The biggest problem with fertilizers is water contamination. Nitrogen fertilizers are soluble in water and thus nitrogen breaks down into nitrates and travel easily through soil, nitrates remain to the soil and with addition of more nitrogen it result to a contamination of water. The contamination of water leads more hazardous effects. One of the scariest effect of chemical fertilizers is actually on infants. The disease is called blue baby syndrome and it will occur if they give a formula reconstituted with contaminated water, this disease can also lead to death. Last but note leas its eutrophication, “eutrophication is...

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