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Wyszukujesz frazę "Horaczek, Tomasz" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
The Effects of Various Organic Materials on Dactylis glomerata Yield and Content of Selected Macroelements
Autorzy:
Malinowska, Elżbieta
Wiśniewska-Kadżajan, Beata
Ostaszewska, Urszula
Horaczek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/27323835.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Dactylis glomerata
yield
organic materials
K
potassium
Ca
calcium
Mg
magnesium
Opis:
The aim of the experiment was to assess the effects of various organic materials on Dactylis glomerata yield, on the content of selected macroelements (K, Ca and Mg) and on K:Ca, K:Mg and K:(Ca + Mg) ratios. As a valuable forage plant, Dactylis glomerata (cocksfoot grass) is a common grass in Poland both in grassland and in arable fields. Its rapid spring growth and its resistance to drought, low temperatures, but also to frequent mowing and pests, makes it a common species in meadows, pastures and grassland, both permanent and alternating. In order to achieve the research goal, a three-year pot experiment was established in a greenhouse. The experiment was conducted in a completely random design, in four replications. In the autumn before the experiment, soil was mixed with organic materials (chicken manure, mushroom substrate and rye straw) and put into pots. To selected units, an additional amount of mineral N was applied in the first year and NPK fertilizers in consecutive years. Mineral fertilizers were applied at the beginning of the growing period. Compared to control, the application of mineral and organic fertilizers resulted in a significant increase in Dactylis glomerata yield. The highest biomass yield (average over the growing periods) was recorded on the unit treated with manure, straw and mineral fertilizers (27.64 g•pot-1) and on the one with mushroom substrate applied together with rye straw and mineral fertilizers (26.47 g•pot-1). The K:(Ca+Mg) ratio in the forage was normal and averaged 0.933, but mineral fertilizers, compared to other treatments, narrowed it.
Źródło:
Journal of Ecological Engineering; 2023, 24, 7; 108--118
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluorescence parameters of chlorophyll a halophytes as a response to salinity of post mining subsidence reservoirs
Autorzy:
Sierka, Edyta
Bujok, Michał
Stalmachova, Barbara
Horaczek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2203574.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
chlorophyll a fluorescence
climate change
halophyte
Najas marina
salinity
Opis:
The increasing salinity of water in reservoirs is caused by climate change. On the other hand, an increase in salinity promotes the group species, halophytes that tolerate or need NaCl for growth. The aim of this study was to identify the response of facultative halophytes’ photosynthetic apparatus efficiency (PE) to water salinity. The study covered the spiny water nymph (Najas marina L.) population in four mining subsidence reservoirs. Najas marina is a facultative halophyte which means that it can occur in both fresh and salt water. This plant has the characteristics of the species invasive, such as rapid biomass growth, and wide ecological tolerance. Water salinity, described by conductivity, in the reservoirs ranged from 646 to 3061 μS∙cm -1. PE was expressed in terms of chlorophyll a fluorescence parameters, which were collected in situ using a Pocket PEA device. Water parameters using a YSI ProDSS probe were identified. Data analysis was performed using OJIP test and s the non-parametric Spearman’s rank test (p ≤ 0.05). The relationship between chlorophyll a fluorescence parameters and water parameters showed that conductivity, salinity, water clarity, and nitrate content statistically significantly affected PE (p <0.05). Generally, the higher salinity e.g. more than 3000 μS∙m -1, supports PE of facultative halophyte at the stage of optimum development in the vegetation season.
Źródło:
Journal of Water and Land Development; 2022, Special Issue; 164--170
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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