Agroecological estimation of heavy metal content in leached chernozem while a prolonged application of fertilizers | Оценка содержания тяжелых металлов в черноземе выщелоченном при длительном применении удобрений
2010
Lebedovskij, I.A., Kuban State Agrarian Univ., Krasnodar (Russian Federation)
There are given the findings concerning heavy metal content in leached chernozem while a prolonged application of fertilizers in the article. It has been established that mineral fertilizers can not be treated as a source of pollution of soil with heavy metals. The accumulation of heavy metals in soil exceeding the MPC will be reached only in several thousand years even when triple doses of fertilizers are applied. It will take 65715 years for cadmium and 887333,3 for lead. There has been established a close correlative connection between cobalt, manganese and lead content which has linear as well as nonlinear dependences. Increase of humus' and acid-soluble forms of iron' content in soil favours binding of heavy metals in difficult of access for plants organomineral complexes
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