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Wyświetlanie 1-2 z 2
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
Tytuł:
Impact of Vermicompost Extract Application Into Soil and on Plant Leaves on Maize Phytomass Formation
Autorzy:
Kováčik, P.
Renčo, M.
Šimanský, V.
Hanáčková, E.
Wiśniowska-Kielian, B.
Powiązania:
https://bibliotekanauki.pl/articles/124045.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
vermicompost
vermi extract
foliar application
maize
Opis:
Nowadays in scientific literature many opposing data are presented of the impacts of vermicompost extract on the quantity and quality of crop production. Therefore, the principal objective of two independent experiments was to study the effects of vermi extracts, which were applied before maize sowing into soil and during the growing season on the maize leaves, on its phytomass formation. The first, field experiment consisted of 9 variants. Variant 1 was the control one without the extract application. We studied the effect of the rising doses (90, 130, 170, 210 dm3.·ha-1) of vermi-extract applied into soil before the maize sowing in the variants E1, E2, E3, E4. In the variants E1+E, E2+E, 3+E, E4+E along with the rising doses of vermi-extract was also applied the uniform dose of vermi-extract (40 dm3·ha-1) at the growth stage BBCH 15. The second, pot experiment was pursued in the vegetation cage and comprised 3 variants: variant 1 was the control, in the variants 2 and 3 the foliar application of vermi-extract was used. The vermi-extract was applied once (growth stage BBCH 12) in the variant 2 and in the variant 3 it was used twice (at growth stages BBCH 12 and BBCH 16). The achieved results show that the vermi-extract applied in the presowing period in-creased the yield of maize grains if the application doses were 130–170 dm3·ha-1. The positive or negative impact of the foliar application by vermi-extract on the yield of maize grains depended on the period of application and the grown cultivar. In order to increase the starch content in grains it was more suitable to carry out the presowing ver-miextract application than during the growing season. The presowing application and the foliar application of vermi-extract tended to decrease the nitrogen content in grain. The foliar application of vermi-extract had the positive impact on the plant height and stalk thickness of the maize plants only in short term. The information obtained from the first half of maize growing season related to the plant height and stalk thickness was not the appropriate indicator for the assessment of maize grain yields.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 143-153
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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