Bortnik A. Effect of fermented organic fertilizers and biopreparations on the yield of potatoes and vegetables in the radioactively contaminated lands of the West Poles'ya

Object - a fertilizer systems using organic and mineral fertilizers and biopreparations to reduce the factors of transfer of radionuclides from soil to agricultural products. Purpose - the impact of different kinds and standards of fermented organic fertilizers on the yield of potatoes and vegetables; to develop organic and organo-mineral fertilizer systems on sod-weakly podzolic soils, which will provide high and stable yields, soil conservation and reduction of transfer of radionuclides from soil to agricultural products. Methods - field research, spectrometric and laboratory studies with the statistical treatment of the results, the methods of economic, energy and environmental assessment. Theoretical results - are developed the theoretical approaches to the justification of the effectiveness of the use of fermented organic fertilizer in combination with microelements and biopreparations on contaminated sod-weakly podzolic soils of West Poles'ya. Substantiated the expediency of the use of cost-effective and environmentally friendly doses of these fertilizers to improve the fertility of contaminated soils, increasing the yield of potato tubers, carrot and beet roots, as well as for reducing the transfer of radionuclides to agricultural products. Practical results - are developed the systems of fertilization of potato and vegetables with the use of fermented organic and mineral fertilizers, microelements and biopreparations under conditions of radioactive contamination, which increase the yield by 32-110%, reduction of radionuclides in 1.4-3.4 times and improvement of agrochemical parameters of soil. Novelty - at the first time was established the effectiveness of using of fermented organic fertilizer in contaminated sod-weakly podzolic soils of West Poles'ya and determined their radioprotective properties. Was recommended the cost-effective and environmentally friendly doses of their application with microelements and biopreparations, which provide stable and high yields of root crops, improve their quality and increase soil fertility. Determined the dynamic of contamination level of soil and agricultural products on the contaminated land of Volyn region. Degree of aplication - the main results of research have been implemented in 2009 and 2010 in the farms of Volyn region on the area of 71 ha. According to research was obtained utility patent "Method of fertilizer potatoes and carrots dining by application fermented and mineral fertilizers and micronutrients in the contaminated soils". The field is agriculture.