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Katarzyna Plewa, Adam Perz, Dariusz Wrzesinski and Leszek Sobkowiak
The hydrology of coastal lakes differs significantly from that of inland water bodies due to the influence of the neighboring sea. Observed climatic changes are expected to enhance the effect of the sea on coastal lake ecosystems, which makes research on...
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Robert Idziak, Tomasz Sakowicz, Hubert Waligóra, Piotr Szulc, Leszek Majchrzak, Barbara Stachowiak and Malgorzata Neumann
Weed control in maize is usually limited to a single herbicide treatment, but the application of two or more herbicides is associated with many benefits, e.g., increasing the spectrum of control weeds, reducing the risk of damage to crops by using reduce...
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Leszek Majchrzak, Hubert Waligóra, Bogna Zawieja, Robert Idziak and Piotr Szulc
This paper focuses on the weed species Echinochloa crus-galli, commonly known as barnyardgrass, which is a persistent threat to crop yield and quality, especially in maize (Zea mays) cultivation. It is one of the most problematic weeds in agricultural fi...
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Magdalena Krupka, Ewa Olkowska, Agnieszka Klimkowicz-Pawlas, Leszek Leczynski, Maciej Tankiewicz, Dariusz J. Michalczyk, Lidia Wolska and Agnieszka I. Piotrowicz-Cieslak
Intensive poultry production may result in substantial emissions of pollutants into the environment, including pharmaceuticals and other chemicals used in poultry farming. The objective of this study was to verify the presence of ciprofloxacin, enrofloxa...
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Grzegorz Kulczycki, Elzbieta Sacala, Anna Koszelnik-Leszek and Lukasz Milo
The aim of the study was to compare sulfate fertilizers and mixtures of elemental sulfur (S0) and sulfate in terms of yield and nitrogen (N) and sulfur (S) status in perennial ryegrass. Mixtures of sulfate and S0 can reduce the consumption of sulfate alo...
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Jerzy Zawisza, Iwona Radosz, Jaroslaw Biegowski and Leszek M. Kaczmarek
The paper presents results of experimental and theoretical studies on transport of water-sand mixtures in steady flow with small amounts of cohesive fractions. The experiments were carried out for sand alone and with cohesive admixtures in the form of cl...
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Adam Perz, Dariusz Wrzesinski, Waldemar W. Budner and Leszek Sobkowiak
Floods are natural phenomena, inextricably related to river regimes, which can threaten human health and life, the environment, cultural heritage, economic activity and infrastructure. The aim of the research is to assess the connection between rainfall ...
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Cezary Kownacki, Leszek Ambroziak, Maciej Ciezkowski, Adam Wolniakowski, Slawomir Romaniuk, Zbigniew Kulesza, Arkadiusz Bozko and Daniel Oldziej
Various unmanned aerial vechicle (UAV) applications, especially those based on reconnaissance and observation missions, often require an unlimited time of flight. This is possible only when a UAV is continuously supplied with power from a ground-based po...
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Mariusz Fraczek, Krzysztof Górski and Leszek Wolaniuk
Nowadays, the land forces of the Republic of Poland use mainly two forms of powering their equipment and military devices: by connecting various devices to the national power grid and by diesel-electric generators of individual vehicles. With the first s...
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Miroslaw Kondratiuk and Leszek Ambroziak
Assisting in the starting procedure of Unmanned Aerial Vehicles (UAVs) is one of many very important areas of modern aviation research. Supported start-up saves fuel or electrical energy, increases operator safety and level of autonomy, extends the appli...
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