Autor: Šimanský, V. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Long-term effects of tillage and fertilization on pH and sorption parameters of haplic Luvisol
Autorzy:: Simansky, V.
Kovacik, P.
Powiązania:: https://bibliotekanauki.pl/articles/13803.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: soil management system
long-term effect
tillage
fertilization
pH
sorption parameter
haplic Luvisol
hydrolytic acidity
cation exchange capacity
Opis:: The influence of different tillage and fertilization practices on changes in soil pH and sorptive parameters of loamy haplic Luvisol was evaluated in a long-term field experiment (established in 1994, in the locality of Dolná Malanta, at the experimental station of the Slovak University of Agriculture in Nitra). The field experiment included two types of soil tillage (conventional tillage – CT and reduced tillage – RT) and also three treatments of fertilization (1. Co – control, 2. PR+NPK – crop residues together with added NPK fertilizers, and 3. NPK – with added NPK fertilizers). The soil was sampled from all treatment sites throughout 1994-2011. The results showed a statistically significant influence of tillage and fertilization on pH and sorptive complex of haplic Luvisol. The values of pH were higher (by 4%) in RT than in CT. The sum of basic cations (SBC), cation exchangeable capacity (CEC) and base saturation (BS) were all higher in RT, by 11%, 8% and 3% respectively, than in CT. In NPK (by 16%) and in PR+NPK (by 20%) the values of hydrolytic acidity (Ha) were decreased in comparison to the control. On the other hand, SBC was elevated. This led to the increase of CEC and BS. Conventional tillage and application of crop residues together with NPK fertilizers increased pH by 0.06 and 0.03 units per year, respectively, which means that the pH in the soil increased by14% and 8%, correspondingly, between 1994 and 2011. In CT and in PR+NPK, an increase of SBC occurred at an average rate of 3.17 and 1.93 mmol kg-1 year-1, respectively. A positive correlation between the content of soil organic carbon (TOC) and Ha (r = 0.334, P ≤ 0.01, n = 54), as well as a negative correlation between TOC and BS (r = -0.307, P ≤ 0.05, n = 54) were determined only in CT.
Źródło:: Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Characteristics of iron and aluminium forms and quantification of soil forming processes in chernozems in Western Slovakia
Charakterystyka form żelaza i glinu oraz kwantyfikacja procesów glebotwórczych w czarnoziemach zachodniej Słowacji
Autorzy:: Jonczak, J.
Simansky, V.
Powiązania:: https://bibliotekanauki.pl/articles/905517.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:: The studies on iron and aluminium forms and soil forming processes quantification in Chernozems were conducted in two localities in Western Slovakia. Two soil pits were done in a complex of arable Haplic Chernozems in Krakovany and two soil pits representing arable and forest Cambic Chernozems were done in Báb. The soils were sampled every 10 cm and analysed using standard methods. Based on analytical results, profile development indices (PDI) were calculated for each profile. Chernozems in Krakovany were characterised by 90 cm (Krakovany 1) and 80 cm (Krakovany 2) thick solums and pH increasing with depth from neutral to alkaline. The content of total organic carbon (TOC) was up to 13.70 g kg⁻¹ in both profiles. Cambic Chernozems in Báb were characterised by a lower thickness of solum – 40 cm in arable soil (Báb 1) and 70 cm in forest soil (Báb 2). Reaction of arable soil ranged from slightly acid to alkaline, and in the case of forest soil – from strongly acid to alkaline. Arable soil contained 14.2-14.5 g kg⁻¹, and forest soils 12.9-50.7 g kg⁻¹ of TOC in A horizons. The content of Fet in the studied soils ranged from 21.78 to 32.48 g kg⁻¹, free iron oxides (Fed) – from 5.74 to 11.53 g kg⁻¹, and amorphous iron oxides (Feo) – from 0.77 to 2.94 g kg⁻¹. Fed/Fet ratios ranged from 0.26 to 0.39. Crystalline forms predominated over amorphous ones. The values of PDI were relatively low, namely 1.50 – in the profile Krakovany 1; 1.76 – in the profile Krakovany 2; 1.15 in the profile Báb 1 and 2.12 – in the profile Báb 2.
Artykuł prezentuje wyniki badań nad zawartością form żelaza i glinu oraz kwantyfikacją procesów glebotwórczych w czarnoziemach zachodniej Słowacji. Dwa profile uprawnych czarnoziemów typowych zlokalizowano w miejscowości Krakovany, a dwa kolejne, reprezentujące uprawne i leśne czarnoziemy z poziomem cambic w miejscowości Báb. W pobranych z warstw co 10 cm próbkach oznaczono właściwości fizyczne i chemiczne stosując standardowe metody analityczne. Na podstawie wyników analiz dla każdego z profili obliczono wskaźniki PDI. Czarnoziemy w Krakovanach, o miąższości solum 90 cm (Krakovany 1) i 80 cm (Krakovany 2), charakteryzowały się odczynem od obojętnego do zasadowego, wykazującym tendencję wzrostową z głębokością. Zawierały one do 13,70 g kg⁻¹ węgla organicznego w obydwu profilach. Czarnoziemy z poziomem cambic w miejscowości Báb charakteryzowały się mniejszą miąższością solum, wynoszącą 40 cm w profilu gleby uprawnej (Báb 1) i 70 cm w profilu gleby leśnej (Báb 2). Odczyn gleb uprawnych mieścił się w przedziale od słabo kwaśnego do zasadowego, a leśnych od silnie kwaśnego do zasadowego, wykazując tendencję wzrostową wraz z głębokością. Gleby uprawne zawierały 14,2-14,5 g kg⁻¹, a gleby leśne 12,9-50,7 g kg⁻¹ węgla organicznego. Zawartość żelaza ogółem (Fet) w badanych glebach wynosiła od 21,78 do 32,48 g kg⁻¹, żelaza wolnego (Fed) 5,74-11,53 g kg⁻¹, a jego amorficznych form (Feo) 0,77-2,94 g kg⁻¹. Wartości stosunków Fed/Fet, wynosiły 0,26-0,39. W puli żelaza wolnego dominowały tlenki krystaliczne. Uzyskane wartości wskaźnika PDI były stosunkowo niskie, wynosząc 1,50 w profilu Krakovany 1, 1,76 w profilu Krakovany 2, 1,15 w profilu Báb 1 i 2,12 w profilu Báb 2.
Źródło:: Polish Journal of Soil Science; 2015, 48, 2
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Zawartość i profilowe rozmieszczenie frakcji fosforu w uprawnych i leśnych czarnoziemach z poziomem cambic
Content and profile distribution of phosphorus fractions in arable and forest Cambic Chernozems
Autorzy:: Jonczak, J.
Simansky, V.
Pollakova, N.
Powiązania:: https://bibliotekanauki.pl/articles/989926.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: gleboznawstwo
gleby uprawne
gleby lesne
czarnoziemy
fosfor
zawartosc fosforu
frakcje fosforu
specjacja chemiczna
rozmieszczenie profilowe
chernozems
arable soils
forest soils
phosphorus speciation
Opis:: Comparative studies on the content and profile distribution patterns of phosphorus fractions in arable and forest Cambic Chernozems were conducted near the village Báb (western Slovakia). Soil samples were collected from every 10 cm and analyzed using standard procedures in soil science. Long term differences in the type of the studied soils usage were reflected in their physical and chemical properties (bulk density, porosity, acidity, the total content of organic carbon and nitrogen), as well as in the content and profile distribution patterns of phosphorus fractions. Total phosphorus content ranged from 498.8 to 754.7 mg/kg in arable soil and from 480.4 to 835.9 mg/kg in forest soil. Residual fraction, which constituted 54.9−77.8% of total phosphorus in arable soil and 57.3−79.2% in forest soil, was a predominant fraction. Such large contribution of this fraction is typical for young soils, with weakly weathered mineral substrates. Exchangeable phosphorus in arable soil constituted 0.6−6.1%, while 0.5−3.0% in forest soil, showing decreasing trends with depth in both soils. Free iron oxides and carbonates were important factors influencing profile distribution of phosphorus in the investigated soils. Iron oxides bound the element mainly in acidified horizons, whereas carbonates in alakaline (Bw and C) horizons. Organic fraction significantly differed in the investigated soils. A much larger content and contribution of this fraction in total phosphorus was noticed in forest soil. The content of organic phosphorus was positively related to the content of organic carbon. Stable fraction of organic phosphorus predominated over labile one in both soils.
Źródło:: Sylwan; 2015, 159, 11; 931-939
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of conventional and reduced tillage technologies on basic soil chemical properties
Autorzy:: Pollakova, N.
Simansky, V.
Jonczak, J.
Parzych, A.
Powiązania:: https://bibliotekanauki.pl/articles/1192039.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: base saturation
hydrolytic acidity
pH
soil organic matter
tillage systems
Opis:: Since tillage technologies considerably influence soil properties and have a major impact on soil sustainability, the objective of this study was to evaluate the effects of conventional (CT) and reduced (RT) tillage on basic soil chemical properties at selected Slovak agricultural farms. Subsequently, the relationships between the chemical properties and soil organic matter (SOM) in both tillage technologies were ascertained. Differences in soil properties between long-term RT and CT were investigated at the adjacent plots on thirteen sites, where six soil pits were excavated on each RT and CT plots. Soil samples were collected from all pits, for each 0.1 m layers from the depth of 0.0-0.4 m. The results revealed that the regular overturn of topsoil, and thus the transfer of leached base cations to the surface layer, as well as deeper incorporation of crop residues and fertilizers in the soil cultivated conventionally has been manifested by higher values of pH, lower hydrolytic acidity (H) and the almost uniform content of base cations (mainly in the layer 0.0-0.3 m) compared to the soil cultivated by RT. Apart from H,, none of the examined sorption properties and pH differed significantly between the compared tillage technologies. Therefore, H can be considered as an important indicator of the change of basic chemical soil characteristics. While in RT, there was a significant correlation only between labile SOM fractions and basic soil chemical properties, in CT the sorption parameters and pH were influenced by labile and also stable SOM.
Źródło:: Journal of Elementology; 2020, 25, 3; 1101-1114
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Will the nutrient content in biochar be reflected by their higher content of corn organs?
Autorzy:: Simansky, V.
Horak, J.
Pollakova, N.
Juriga, M.
Jonczak, J.
Powiązania:: https://bibliotekanauki.pl/articles/14999.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2019, 24, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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