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Wyświetlanie 1-2 z 2
Tytuł:
Impact of application of Norway spruce sawdust (Picea abies) on sugar beet growth and yield and on selected soil parameters
Autorzy:
Kovacik, P.
Wierzbowska, J.
Smolen, S.
Powiązania:
https://bibliotekanauki.pl/articles/1192387.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
retardation of plant growth
lignocellulosic substances
organic matter
assimilative
pigments
Opis:
The decrease in application of organic fertilizers into arable soils in Slovakia observed for the past twenty-five years has caused degradation of their physical, chemical and biological parameters. In order to solve this problem, Slovak farmers often add to soil such carbon-rich substances which either pose a risk of increasing the heavy metal content of soil, or whose purchase and use are economically demanding. Meanwhile, sawdust is a cheap and available carbon-rich material. Therefore, the objective of a two-year pot experiment was to determine the impact of sawdust used alone or with added inorganic nitrogen on the parameters of sugar beet yield as well as on some soil parameters. The results proved that the separate application of sawdust in autumn in doses of 3.4 t ha-1 and 6.8 t ha-1 caused the retardation of the growth of sugar beet and the decrease of the total chlorophyll content in leaves during the first 80 days of plant growth and development. This application did not have the significant impact on the root yield, but it increased the sugar content of sugar beet roots. The roots contained less a-amino nitrogen and more potassium. The number of nitrogen-fixing bacteria of genus Azotobacter chroococcum (AzCh) and the quantity of organic carbon in soil increased. The addition of mineral nitrogen fertilizer in a dose of 60 kg ha-1 into sawdust before sugar beet sowing in spring lowered or even eliminated the negative impact of sawdust itself on the beet growth and the content of total chlorophyll. It also increased the root yield. This addition had positive impact on the number of bacteria of the genus AzCh and the quantity of organic carbon in soil.
Źródło:
Journal of Elementology; 2020, 25, 3; 1141-1154
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of foliar application of the biostimulator Mg-Titanit on the formation of winter oilseed rape phytomass and its titanium content
Autorzy:
Kováčik, P.
Šimanský, V.
Wierzbowska, J.
Renčo, M.
Powiązania:
https://bibliotekanauki.pl/articles/962759.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The objective of the following three-year small-plot experiments was to determine the impact of a dose and application date of the biostimulator Mg-Tytanit (MgTi) on the formation of winter oilseed rape phytomass and its titanium cont ent. In the trial the biostimulant Mg-Tytanit containing 8.5 g of titanium in 1 liter was used. The experiment consisted of 5 treatments: 0 – control treatment without MgTi; 2xTi0.2 – two applications of MgTi in the dose of 0.2 dm3 ha-1; 3xTi0.2 – three applications of MgTi in the dose of 0.2 dm3 ha-1; 2xTi0.4 – two applications of MgTi in the dose of 0.4 dm3 ha-1; 3xTi0.4 – three applications of MgTi in the dose of 0.4 dm3 ha-1. The BS was applied in spring during two or three different growth stages: BBCH 50, BBCH 59, BBCH 66. The first plant sampling was carried out shortly before the first application of BS (BBCH 50). The second, third and fourth sampling were taken 2 – 3 weeks after the application of Mg-Tytanit (BBCH 59, BBCH 66, BBCH 71). The results showed that the biostimulator MgTi, regardless of its dose and application date, resulted in a higher weight of the aerial and underground phytomass. All the MgTi applications had impact on the winter oilseed rape yield increase. The seed yield was increased by 0.3 to 0.63 t ha-1. Higher yields were achieved in the treatments where MgTi was applied three times in comparison with the treatments, where it was used twice. The oil content in rape seeds was increased significantly only if MgTi was used in the total doses 0.8 and 1.2 dm3 ha-1 in the single application dose 0.4 dm3 ha-1. The oil content value was increased by 0.94 % and by 0.82 %. The oil production per hectare was increased after each use of MgTi, i.e. regardeless of the dose and date of its application. The highest Ti content in the aerial phytomass was 68.5 mg kg-1 and in the underground phytomass it was 247.1 mg kg-1.
Źródło:
Journal of Elementology; 2016, 21, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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