Wyniki wyszukiwania - BazTech

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Influence of Agricultural Systems on Microbiological Transformation of Organic Matter in Wheat Winter Crops on Typical Black Soils

Karpenko Olena, Butenko Yevheniia, Rozhko Valentina, Sykalo Оksana, Chernega Tetyana, Kustovska Alla, Onychko Viktor, Tymchuk Dmytro S., Filon Vasyl, Novikova Anna

Journal of Ecological Engineering

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2022

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Vol. 23, nr 9

181--186

EN

The influence of different agriculture systems and measures of basic tillage on nutrient regime, its relation to the number of microorganisms involved in transformation of organic matter in typical black soils was studied. Direction of the formation processes of some physiological indices in the field of wheat winter was investigated. It was found that the most favorable conditions of nutrition and soil microflora development, as well as indices of crop growth and development are created when using ecological system of agriculture.

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Rapd-Analysis of Flax Varieties of the Ukrainian National Collection

Kovalenko Ihor, Vereshchahin Ihor, Butenko Yevheniia, Kandyba Natalia, Onychko Viktor, Bakumenko Olha, Kovalenko Vladyslav, Klochkova Tetiana

Ecological Engineering & Environmental Technology

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2022

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Vol. 23, iss. 3

1--6

EN

The article presents the results of research on the use of RAPD (Random Amplified Polymorphic DNA) molecular primers, linked to the sign of fiber content in the stems of flax. The main purpose of the research is to identify genetic polymorphism based on the fiber content, inter- and intraspecific genetic relationships between domestic and foreign flax varieties and hybrids. Realization of this aim will allow the number of tasks: 1) to increase the possibilities for successfully identify flax varieties and hybrids, 2) group the breeding material according to its genetic affinity, which will optimize the selection of pairs for crossing, 3) it is better to integrate traditional breeding methods (hybridization, selection, mutagenesis) with molecular biology methods for creation flax varieties with specified parameters of valuable economic traits and, as a consequence, to make selection most successful. 24 varieties and hybrids of flax were investigated using the method of polymerase chain reaction and separation of DNA fragments by gel electrophoresis. A small number of loci on electrophoregrams were detected, which indicates a small affinity of the selection material, which was also confirmed by the use of cluster analysis.

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Nutrient Balance of Sod-Podzolic Soil Depending on the Productivity of Meadow Agrophytocenosis and Fertilization

Karbivska Uliana, Masyk Ihor, Butenko Andrii, Onychko Viktor, Onychko Tetiana, Kriuchko Lyudmyla, Rozhko Valentina, Karpenko Olena, Kozak Maksym

Ecological Engineering & Environmental Technology

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2022

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Vol. 23, iss. 2

70--77

EN

The influence of mineral fertilizers on productivity and nutrient balance of sod–podzolic soil when growing cereal meadow agrophytocenosis under conditions of Precarpathians of Ukraine was researched. It was found that the dependence of cereal agrocenosis productivity on the doses and ratios of N, P, K in mineral fertilizers is described by equation (polynomial) of the 2nd degree. Among the mineral elements, nitrogen is has the greatest influence on grass productivity. When applying the total dose of N75 with even distribution of nitrogen under each of three mowings on different backgrounds of phosphorus-potassium fertilizers, the productivity of cereal grass increases by 2.82–3.06 t ha-1 of dry mass, and when applying N150 by 3.33–4.93 t ha-1 of dry mass. Recoupment of nitrogen fertilizers per 1 kg by yield increase when applying N75 is 38–41 kg of dry mass, which is 4–5 kg more compared to the application of N150. The indices of phosphorus and especially potassium removal, as well as deficiency of these elements in the balance increased along with nitrogen dose. Independently of the phosphorus and potassium doses, the lowest indices are fixed on a nitrogen–free background, and the highest – on the background of N150.

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Modelling wheat grain flow during sowing based on the model of grain with shifted center of gravity

Zubko Vladislav, Sirenko Viktor, Kuzina Tetiana, Onychko Viktor, Sokolik Serhii, Roubik Hynek, Koszel Milan, Shchur Taras

Agricultural Engineering

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2022

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Vol. 26, No. 1

25--37

EN

Winter wheat is one of the widespread crops in Ukraine. The search for methods to increase the yield and consumer properties of wheat, without compromising environmental safety, is one of the important scientific problems. The principles of precision agriculture point to the proper positioning of the seeds, recommending the method of "upward germination" (positioning the wheat germ vertically). The main objective of this study was to develop a new geometric model of wheat grain with a displaced centre of mass, as well as to conduct the theoretical research and numerical experiments on the orientation of grains using their multiple impact interaction with inclined surfaces. A new model of germ consisting of two different end semispheres and amid-line truncated cone was proposed, with a displaced centre of mass. Taking into account the physical properties of the objects, the concept of arrangement of gravity orientation of seeds in a stream was applied. This concept was based on various ratios of kinetic parameters of bodies with a displaced centre of gravity following an impact. The results showed that the orientation process can be controlled by changing the inclination angles and the length of the walls of the tray orientator within the working velocity range. This must be done before impact interaction of 0.2-0.3 m s -1 when the inclination angles of the impact interaction planes are 24-32°C.

PL

Pszenica ozima jest jedną z najpopularniejszych roślin uprawnych na Ukrainie. Poszukiwanie metod zwiększenia plonów i właściwości konsumpcyjnych pszenicy, bez uszczerbku dla bezpieczeństwa środowiska, stanowi zatem ważny problem naukowy. Zasady rolnictwa precyzyjnego podkreślają właściwe rozmieszczenie nasion, zalecając pionowe ustawienie kiełków pszenicy (metoda „kiełkowania w górę”). Głównym celem badań było opracowanie nowego modelu geometrycznego ziarna pszenicy z przesuniętym środkiem ciężkości oraz przeprowadzenie badań teoretycznych i eksperymentów obliczeniowych dotyczących orientacji ziaren. Bazowały one na wielokrotnym zderzaniu z powierzchniami nachylonymi. Zaproponowano nowy model ziarniaka, składający się z dwóch różnych półkul końcowych i amidoliniowego stożka ściętego, z przesuniętym środkiem ciężkości. Zastosowano koncepcję układu orientacji grawitacyjnej nasion, z uwzględnieniem właściwości fizycznych obiektów. Koncepcja ta opierała się na różnych relacjach między parametrami kinetycznymi ciał z przesuniętym środkiem ciężkości po zderzeniu. Wyniki pokazały, że procesem orientacji można sterować poprzez zmianę kątów nachylenia i długości ścianek tacy podajnika w zakresie prędkości roboczych, pod warunkiem, że robi się to przed zderzeniem o wartości 0,2-0,3 m s-1, gdy kąty nachylenia płaszczyzn oddziaływania zderzeniowego wynoszą 24-32°C.