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Wyświetlanie 1-3 z 3
Tytuł:
Application of Phytotoxkit in the quick assessment of ashes suitability as fertilizers in sorghum crops
Autorzy:
Romanowska-Duda, Z.
Janas, R.
Grzesik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2082497.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
ash
sorghum
Jerusalem artichoke
growth
Opis:
The aim of the research was to check the suitability of the Phytotoxkit test for quick assessment of usefulness of ashes from the combustion of sorghum and Jerusalem artichoke biomass as fertilizers in the cultivation of energy crops. Seeds of Sorghum bicolor L. were placed in the Phytotoxkit-plates, filled with Alonet Substrate KS (Latvia) and containing 0-100% of ash from burnt sorghum and Jerusalem artichoke plants. Based on daily measurements under greenhouse conditions, dynamics of seed germination, growth speed of shoots and roots, their fresh and dry biomass, index of chlorophyll content and parameters of gas exchange were evaluated. The results indicated that the modified Phytotoxkit biotest could be useful for quick assessment of ashes usefulness as fertilizers, it can be performed under greenhouse conditions regardless of the growing season and may be an alternative to laborious and long-term field trials. Biotest showed that the studied ashes, used in the proper dosages, improved seed germination, plant growth and biomass yield. These events were associated with increased index of chlorophyll content in leaves, net photosynthesis, stomatal conductivity, transpiration and proportionally decreased concentration of intercellular CO2. This indicate, that the studied ashes can be used as fertilizers in sorghum crops.
Źródło:
International Agrophysics; 2019, 33, 2; 145-152
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of pulsed radio frequency in seed quality improvement of vegetable plant species
Autorzy:
Janas, R.
Górnik, K.
Grzesik, M.
Romanowska-Duda, Z.
van Duijn, B.
Powiązania:
https://bibliotekanauki.pl/articles/2082637.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
seeds
lettuce
beetroot
garden dill
pulsed
radio frequency
health status
Opis:
The most significant problem, in ecological vegetable seed production, is low, capacity which is mainly caused by high rates of seed infection with fungi and a shortage of effective biological agents to eliminate pathogens. Therefore, proecological methods of seed quality enhancement are being researched, with the aim of increasing the profitability of seed production by improving the seed sowing value. The aim of the work was to evaluate the effectiveness of pulsed radio frequency on the seed quality of selected vegetable cultivars. The results obtained from research conducted in laboratory, greenhouse and field conditions indicate the protective effect of pulsed radio frequency treatment of seeds by a reduction in the incidence of beetroot, lettuce and garden dill seed-borne fungi, and an improvement in their health status and germination capacity. The presowing application of pulsed radio frequency resulted in a 60-80% reduction of seed infestation with fungi, depending on the plant species. This treatment improved the dynamics of seed germination, plant emergence, growth, and increased the chlorophyll content and gas exchange in leaves. The most beneficial results were obtained in beetroot, in which the problem of seed production is associated with a high rate of seed infestation with mycoflora and the presence of germination inhibitors in the seed coat. The results indicate the high efficiency of the applied pulsed radio frequency and its usefulness in ecological and integrated seed production.
Źródło:
International Agrophysics; 2019, 33, 4; 463-471
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ash from Jerusalem artichoke and biopreparations enhance the growth and physiological activity of sorghum and limit environmental pollution by decreasing artificial fertilization needs
Autorzy:
Romanowska-Duda, Z.
Grzesik, M.
Janas, R.
Powiązania:
https://bibliotekanauki.pl/articles/2082916.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
fertilization
physiological activity
Jerusalem
artichoke ash
sorghum growth
Opis:
An increase in plant productivity and the limitation of environmental pollution through the use of natural fertilizers are becoming the most important issues in contemporary sustainable agriculture. Therefore, the purpose of the research was to demonstrate the effect of Jerusalem artichoke ash, used alone or together with biopreparations and biogas plant waste, on the growth and physiological activity of sorghum and to show their applicability as an alternative to chemical fertilization. The sorghum plants, cultivated in Central and North Poland, were fertilized with the YaraMila Complex, a chemical fertilizer (0, 150, 300 kg ha-1) and each concentration was supplemented with Jerusalem artichoke ash (0-4 t ha-1), applied separately or together with Apol-Humus (10 L ha-1), biogas plant waste (30 m3 ha-1) and Stymjod (5 L ha-1). Within each YaraMila Complex addition, the all ash doses (preferably 2-4 t ha-1), biopreparations and biogas plant waste significantly enhanced plant growth, biomass yield, chlorophyll content, gas exchange (net photosynthesis, transpiration, stomatal conductance, intercellular CO2 concentration), enzyme activity (acid and alkaline phosphorylase, RNase, dehydrogenase) and slightly enhanced the content of the measured elements in plants and their energy properties. The ash applied together with a lower than recommended amount of YaraMila Complex (0 or 150 kg ha-1) increased plant development slightly more than twice the dose of YaraMila Complex used alone (150 or 300 kg ha-1, respectively). This demonstrates that the studied ash can serve as a natural fertilizer and may halve the recommended chemical fertilizer doses.
Źródło:
International Agrophysics; 2020, 34, 3; 365-379
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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