Abstract
The chemical composition of the arable layer of soddy mesopodzol and middling soil was studied for 53 elements and 8 oxides. Образцы были отобраны в шестой ротации севооборота с варианта без удобрений и с варианта (NPK)60+известь по 1+2 г.к. под 1 и 2 ротацию севооборота в паровом поле длительного опыта, который заложен в 1971-1972 гг. на опытном поле НГБУ Удмуртский НИИСХ. The content of chemical elements in the soil is determined in the analytical certification test center (AСTС) Russian Research Institute of Mineral Resources named after N.M. Fedorovskiy by mass spectral analysis with inductively coupled plasma (MS) and atomic-emission method with inductively coupled plasma (AES). According to the research, it was found, that in the topsoil in the variant with mineral fertilizers the content of heavy metals (vanadium, chromium, cobalt, nickel, copper, zinc, arsenic, cadmium, lead) was increased relative to similar values in the variant of without fertilizers, but their concentration does not exceed the admissible concentration limit. The oxide content in the topsoil during long-term application of mineral fertilizers has not changed compared with their content in the topsoil without fertilizer.
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