Authors:
Yu. A. KOSHELEVA, postgraduate student, leading engineer,
Ya. O. TIMOFEEVA, candidate of biological sciences, head of sector,
Federal scientific center of the East Asia terrestrial biodiversity FEB RAS (159 Stoletiya Vladivostoka str., 690022, Vladivostok; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.).
Abstract. Strontium and Vanadium are considered to be potentially dangerous for the environment in most countries of the world. One of the most common sources of input of the studied elements in the agricultural soils is the use of fertilizers. There are no regulations defining the permissible content of Sr and V in fertilizers on the territory of the Russian Federation. The amount of fertilizer adding practically not controlled in the study area, which causes a change in the elemental composition of soil. Therefore, it is important to assess the influence of long-term adding of mineral and organo-mineral fertilizers on the different forms of Sr and V contents. The objects of this study were soils formed in the territory of agrochemical station of Primorye Research Institute of Agriculture Far Eastern Branch of Russian Academy of Sciences. By the time of the study, eight full rotations of 9-full crop rotation had been completed. In the field crop rotation control variants of experiments were selected – without fertilizer (control), with the adding of mineral (NPK) and organo-mineral fertilizers (PK + manure + lime). The study of the contents of Sr and V in the soils was carried out X-ray fluorescence and atomic emission methods. Fertilizer application is accompanied by an increase of the different forms Sr and V content in arable soils. The maximum influence of long-term fertilizer application was observed to increase the concentration of water-soluble (available for plants) forms Sr and V to 70 % and 75 % respectively. It was found that Ca-, Mn-, P-containing phases have the greatest influence on the distribution, accumulation and mobility of Sr and V in arable soils, Si-, Al-, Fe-containing compounds and humus have to a lesser impact. The additional input of elements with fertilizers leads to their weak fixation in the composition of the organo-mineral soil complex and in the secondary soil minerals, in water-soluble forms mostly.
Keywords: arable soil, organic-mineral fertilizers, strontium, vanadium, physical and chemical properties of soils.
