Tag Archives: fertilizers NPK(S): Belarusian

1266-1277 A. Pavlichenko, O. Dmytrenko, O. Litvinova, S. Kovalova, D. Litvinov and O. Havryliuk
Changes in gray forest soil organic matter pools under anthropogenic load in agrocenoses
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Changes in gray forest soil organic matter pools under anthropogenic load in agrocenoses

A. Pavlichenko¹, O. Dmytrenko², O. Litvinova³, S. Kovalova⁴, D. Litvinov³ and O. Havryliuk³*

¹NSC ‘Institute of Agriculture NAAS’, Mashynobudivnykiv 2-B, Str., Chabany village, UA08162 Kyiv region, Ukraine
²State Institution ‘Soils Protection Institute of Ukraine’, Babushkina Per., 3, UA03190 Kyiv, Ukraine
³National University of Life and Environmental Sciences of Ukraine, Heroiv Oborony Str., 13, UA03041 Kyiv, Ukraine
⁴Polissya Institute of Agriculture NAAS of Ukraine, 131 Kyivske Highway, UA10007 Zhytomyr, Ukraine
*Correspondence: o.havryliuk@nubip.edu.ua

Abstract:

The relevance of research is determined by a complex of factors that shape the change in the humus system of gray forest soil dynamics (content, total reserves, values variability of labile and stable humus pools, humification processes direction) under the influence of mineral fertilizers and chemical reclamation in the long-term ecotope conditions. The purpose of the research was to assess the impact of systematic anthropogenic loading on changes in soil organic matter pools. Research methods included long-term stationary studies, laboratory determination of organic matter content and humus group composition, and statistical data analysis. It has been proven that liming practically did not contribute to the increase of the total humus content, however, due to the coagulating effect, certain changes in labile and more stable forms of humus substances occurred in its qualitative composition. It has been established that the cultivation of crops сultivation in crop rotation with a purely mineral fertilizer system did not lead to a significant organic matter accumulation in the soil, despite the increase in crop yield levels under appropriate conditions and the accumulation of a larger vegetative mass of root and post-harvest residues entering the soil, but its losses were significantly reduced. The use of organic components (green manure, by-products) in combination with moderate rates of mineral fertilizers on a liming background (humus content 1.63%), provided a clear tendency to expand humus reproduction by 0.16%, compared to the initial level, and by 15% and 12% more than in the version with no fertilizers and just mineral system. Under such a fertilizing system, there is a tendency to increase more stable humic acids. The increase in humification of organic matter was achieved through the application of fertilizers in limed backgrounds. In this case, the humus formation type exhibited characteristics of humate-fulvate, with a value of 0.9, which is characteristic of soils of forest origin in the northern Forest-Steppe region with the presence of soil-forming factors specific to that territory. The article materials are of practical value for agricultural producers in the development of an innovative strategy for preserving the environment safety, and soil fertility under the influence of elements of energy-saving technologies for crops.

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2071–2081 S. Stankowski, M. Bury, A. Jaroszewska, B. Michalska and M. Gibczyńska
Effect of multi-component fertilizers on seeds yield, yield components and physiological parameters of winter oilseed rape (Brassica napus L.)
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Effect of multi-component fertilizers on seeds yield, yield components and physiological parameters of winter oilseed rape (Brassica napus L.)

S. Stankowski¹, M. Bury¹, A. Jaroszewska¹, B. Michalska² and M. Gibczyńska³*

¹West Pomeranian University of Technology in Szczecin, Department of Agronomy, street Papieża Pawła VI 3, PL71-459 Szczecin, Poland
²West Pomeranian University of Technology in Szczecin, Department of Meteorology, Botany and Green Areas Management, Papieża Pawła street VI 3, PL71-459 Szczecin, Poland
³West Pomeranian University of Technology in Szczecin, Department of Chemistry, Microbiology and Environmental Biotechnology, Słowackiego street 17, PL71-434 Szczecin, Poland
*Correspondence: marzena.gibczynska@zut.edu.pl

Abstract:

Subject of the discussed studies was an analysis of the impact of mineral multi-component fertilizers, from Polish and foreign producers, on the yield and yield components of winter oilseed rape (Brassica napus var. oleifera). Two field experiments were carried out in 2015–2017 in Lipnik. The experimental crop was winter oilseed rape, hybrid cultivar DK EXPLICIT. Two factors were studied in the experiment A: 4 multi-component mineral fertilizers – two Belarusian (1 i 2), one Russian and one Polish (Polifoska 6) and 4 doses of fertilization (250, 500 and 750 kg ha-1). In the experiment (B) were compared two factors: 3 multi-component mineral fertilizers – Belarusian, Russian and Polish production – Polifoska 8 and 4 doses of fertilization (200, 400 and 600 kg ha-1). The fertilizers applied in the experiments, manufactured in Belarus, Russia and Poland, did not show variations in the amount of yield of winter rape. The number of winter rapeseed plants on the area unit (in autumn and spring) was independent of the type of fertilizers. In the experiment B, higher number of rapeseed siliques was obtained after application of Polifoska 8, than other fertilizers. Rapeseed grown on soil with the fertilizers manufactured in Belarus showed a lower value of greenness index (SPAD) and leaf area index (LAI). As a result of the application of multi-component fertilizers, manufactured in Belarus, Russia and Poland, the recorded differences in the winter rapeseed yield, yield components and physiological parameters did not exceed 10%.

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