CONTINUOUS DYNAMICS OF ACIDITY AND PRODUCTIVITY OF SOD-PODZOLIC SOILS DEPENDING ON DOSES OF LIME IN CONDITIONS OF WESTERN POLISSYA OF UKRAINE
Journal Title: Наукові доповіді НУБіП України - Year 2017, Vol 3, Issue 3
Abstract
The article presents the results of research of the influence of different doses of lime on the physical and chemical properties of sod-podzolic soils and productivity of crop rotation in conditions of Western Polissya of Ukraine. Research was carried out in 1980-2011 in the long-term stationary experiment. It was established that soil liming with 0,5; 1,0; 1,5 and 2,0 doses of CaCO3 at the beginning of the first, second and third crop rotation can reduce the acidity of soil solution from рНКСl of 4,6-4,7 to 5,4; 6,2; 6,6 and 6,6 respectively on the period of rotation duration, and can reduce the hydrolytic acidity from 2,23-2,48 to 1,67; 1,22; 0,64 and 0,58 mEq / 100 g soil, respectively. For 19 years after the last soil liming reverse acidification was occurred, the extent of which was depended on the dose of lime. At the end of the period against the background of aftereffect of 0,5; 1,0; 1,5 and 2,0 doses of CaCO3 the рНКСl of soil solution was 4.7; 5.1; 5,6 and 5,7, and hydrolytic soil acidity – 2,27; 2,10; 1,92 and 1,40 mEq / 100 g soil, respectively. Average for 35 years of researches gathering of grain harvest units at the use of organic and organo-mineral fertilizer systems was 3,24 and 4,04 t/ha, respectively. Adding of 0,5; 1,0; 1,5 and 2,0 doses of CaCO3 on the background of organo-mineral fertilizer system was ensured the increasing of average gathering of grain harvest units to 4,98; 5.39; 5.55 and 5.53 t/ha, respectively.
Authors and Affiliations
V. M. Poliovyi, S. M. Kulyk
Keywords
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- EP ID EP260917
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