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Wyświetlanie 1-3 z 3
Tytuł:
Application of the Research on Spatio-Temporal Differentiation of a Vegetation Index in Evaluating Sunflower Hybrid Plasticity and Growth-Regulators in the Steppe Zone of Ukraine
Autorzy:
Pichura, Vitalii
Domaratskiy, Yevhenii
Potravka, Larisa
Biloshkurenko, Oleksandra
Dobrovol'skiy, Andrey
Powiązania:
https://bibliotekanauki.pl/articles/24201739.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sunflower
growth-regulatory preparation
climate
vegetation
NDVI
Steppe zone
remote sensing
Opis:
The purpose of the study was to establish dependence of sunflower productivity on hybrid plasticity under the climatic conditions of the Steppe zone and effectiveness of growth-regulators on the basis of the analysis of differentiation of a vegetation index. The research on the development and productivity of different sunflower hybrids under the natural-climatic conditions of the Steppe zone of Ukraine was conducted in the years of 2019 (medium-wet), 2020 (dry) and 2021 (wet). Spatio-temporal differentiation of the vegetation of sunflower hybrids was established on the basis of calculation of a normalized difference vegetation index (NDVI) using the data of the decoded space images of Sentinel 2. Cartographic and grapho-analytical materials reflecting the reaction of plants to natural-climatic conditions and multifunctional growth-regulators were obtained. The dependence of the reaction of sunflower hybrids to multifunctional growth-regulators on their plasticity in response to the natural-climatic conditions of the Steppe zone was established. There was a weak reaction to application of growth-regulators of the sunflower hybrids Oplot and P64HE133 which are characterized by a high level of plasticity in response to the natural-climatic conditions of the Steppe zone. It was proven that the application of the biological preparation Helafit Combi exceeded the level of agrocenoses productivity in comparison with the chemical preparation ArchitectТМ by 1.1-5.4%. It was established that foliar treatment with growth-regulators led to a decline in water uptake by the sunflower hybrids by 1.2–10.0% in the dry year, by 3.8–8.6% in the medium-wet year and by 3.7%–21.9% in the wet year. There was a significant reduction in the level of water uptake by the hybrid Hector – by 7.7–10.0% and the hybrid 8KH477KL – by 1.2–21.9%. The research results are the basis for forecasting the development of sunflower hybrid crops with further measurement of the crop productivity that allows establishing a probable level of efficiency of sunflower hybrid production by agricultural producers under the climatic conditions of the Steppe zone.
Źródło:
Journal of Ecological Engineering; 2023, 24, 6; 144--165
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Eco-Safe Growth-Regulating Substances on the Phytosanitary State of Agrocenoses of Wheat Varieties of Various Types of Development in Non-Irrigated Conditions of the Steppe Zone
Autorzy:
Domaratskiy, Yevhenii
Bazaliy, Valerii
Dobrovol'skiy, Andrey
Pichura, Vitalii
Kozlova, Olga
Powiązania:
https://bibliotekanauki.pl/articles/2173328.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
winter wheat
growth regulators
agrocenosis productivity
pathogen
fungicides
Opis:
The article is devoted to establishing the influence of multifunctional environmentally friendly growth-regulating preparations on the phytosanitary state of agrocenoses of various types of wheat varieties and their productivity under non-irrigated conditions of the steppe zone of Ukraine. Field studies were conducted over 2016–2020 in two agroclimatic points of the steppe zone: such as in the experimental field of the Kherson State Agrarian and Economic University (GPS: 46.743447, 32.481064 Kherson, Ukraine – point 1) and the land use of the farm "Svetlana" (GPS: 47.635522, 32.099772 Vossiyatskoye Village, Mykolaiv region, Ukraine-point 2) under non-irrigated conditions. The implementation of the scientific research program was carried out by laying three – factor experiments in these agroecological points, where Factor A was the varieties of winter wheat – Khersonska 99, Kirena, Askaniyska, Mudrist, Clarissa, Khutoryanka; variants of Factor B: growth-regulating preparations – VuksalMicroplant, Helafit Combi, Phytomare, without cultivation (control); variants of factor C: terms of sowing winter wheat – 10.09, 20.09, 30.09 and 10.10. Studies established that the use of multifunctional growth-regulating preparations helped to reduce the level of plant damage by pathogenic microflora at all sowing periods and varieties of winter wheat. Phytomare and Helafit Combi were the most effective in this respect, under various growing conditions. In most cases, they reduced the degree of damage to winter wheat plants by pathogenic microflora by 40–50% or more. All applied growth regulators increased the mass of grain from the ear and the mass of 1000 grains at different sowing times. It was found that for five years of field research, the greatest increase in yield under different research conditions and different varieties was shown by the Helafit Combi preparation. When it was applied in the experimental field of the Kherson State Agrarian and Economic University, the yield was additionally formed from 0.22 up to 0.5 t/ha, in the field of FG "Svetlana", respectively, it was formed 0.14 up to 0.36 t/ha.
Źródło:
Journal of Ecological Engineering; 2022, 23, 8; 299--308
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of Water Consumption of High-Oleic Sunflower Hybrids under Non-Irrigated Conditions of the Steppe Zone of Ukraine
Autorzy:
Domaratskiy, Yevhenii
Kozlova, Olga
Dobrovol'skiy, Andrey
Bazaliy, Valerii
Powiązania:
https://bibliotekanauki.pl/articles/2105285.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sunflower of high-oleic type
multifunctional growth-regulating preparation
Architect
Helafit Combi
hybrid
water consumption
yield
Opis:
The article is devoted to highlighting the results of field studies conducted during 2019–2021 on the influence of multifunctional growth-regulating drugs with a fungicidal effect Architecttm and Helafit Combi on the productivity and optimization of water consumption of high-oleic sunflower hybrids in non-irrigated conditions of the steppe zone of Ukraine. The study was carried out under non-irrigated conditions in the experimental field of the “Mykolaiv DSDS IZZ NAAS” state institution of Ukraine (GPS: 46.980168, 32.148075) on southern low-humus chernozems. The program of scientific research provided for the foundation of a two – factor field experiment, in which sunflower hybrids were studied, namely Hector and Oplot (originator-V. Y. Yuryev Institute of crop production); DSL403 and P64GE133 (manufacturer Corteva, Brevant) and 8X477KL (manufacturer Dow Seeds). In the experiment, multifunctional growth – regulating preparations of chemical origin, i.e. Architecttm, and biological origin, i.e. Helafit Combi, were used. They were introduced in the form of foliar treatments of sunflower hybrids in the Phase 6–8 of real leaves with a rate of 1 l/ha. The weather conditions in 2019–2021 can be classified as medium – arid, typical for this growing zone, but the most favorable year was 2021. As for the temperature indicators, the average monthly air temperature for the study years was higher than the corresponding long-term average data. The results of three-year field studies showed that foliar treatments of sunflower hybrids of high-oleic type with Architect and Helafit Combi multifunctional preparations had a positive effect on improving growing conditions and increasing plant resistance to stress from high temperatures and lack of moisture. The study preparations contribute to a more economical use of soil moisture for the formation of a crop unit, as evidenced by a decrease in the water consumption coefficient for all the studied hybrids. The lowest water consumption coefficient of 1283 m3/t was found in the P64GE133 hybrid under the conditions of treatment of sunflower plants with a Helafit Combi combined preparation of biological origin. Foliar treatment of plants with combined growth-regulating preparations led to optimization of water consumption of agrocenosis in general.
Źródło:
Journal of Ecological Engineering; 2022, 23, 6; 14--21
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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