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    Wyświetlanie 1-5 z 5
    Tytuł:
    Effects of boron on yield, quality and leaf nutrients of Isabella (Vitis labrusca L.) grape cultivar
    Autorzy:
    Bilir Ekbic, H.
    Gokdemir, N.
    Erdem, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/11881198.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    grapevine
    fox grape
    Vitis labrusca
    Isabella cultivar
    plant species
    plant cultivar
    plant yield
    plant quality
    leaf nutrient content
    macronutrient
    micronutrient
    foliar fertilization
    boron
    boric acid
    Opis:
    The present study was conducted in 2014 vegetation season in a vineyard of Giresun Hazelnut Research Institute. Isabella (Vitis labrusca L.) grape cultivar were treated with four different boric acid (H3BO3) doses (control, 0.1%, 0.2%, 0.3%) at two different periods (a week before and after full-bloom). The effects of foliar boron treatments on yield, quality and leaf nutrients were investigated. Boric acid treatments positively influenced cluster weight, width and volumes and increasing values were observed with increasing boron doses. Boric acid treatments also influenced berry homogeneity and yielded more homogeneous appearance. Chlorophyll contents increased with increasing boron treatments. The greatest yield, cluster length, cluster volume, cluster size, cluster width, berry width and leaf area were obtained from 0.3% boric acid treatments. In general, leaf nitrogen, phosphorus, calcium, magnesium, zinc and copper concentrations increased, but potassium and iron concentrations decreased with increasing boron doses. As compared to control treatment, all treatments had broader leaf sizes and higher chlorophyll contents. Especially 0.3% boric acid treatments had quite positive influences on quality, size and color homogeneity. Considering the nutrients and pH level of experimental soils, it was concluded that foliar nutrient treatments may support plant growth and development and 0.3% boric acid treatments were recommended for high quality and quantity yields in Isabella grape cultivar.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 1; 149-157
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aminoethoxyvinylglycine and foliar zinc treatments play a key role in pre-harvest drops and fruit quality attributes of 'William's Pride' apple
    Autorzy:
    Ozturk, B.
    Yıldız, K.
    Erdem, H.
    Karakaya, O.
    Ozturk, A.
    Aglar, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/12303649.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    apple tree
    William's Pride cultivar
    apple cultivar
    foliar treatment
    pre-harvest application
    zinc application
    aminoethoxyvinylglycine
    Opis:
    Productivity of plants is determined by multiple factors that directly affect one another, therefore yield variability may be high and difficult to predict. Most often, however, a lower crop yield is achieved in the notillage system than in the ploughing system. An exact field experiment was undertaken to determine the yield and chemical composition of pea seeds sown under conditions of: 1) conventional tillage – CT (shallow ploughing and harrowing after the harvest of previous crop, pre-winter ploughing in winter); 2) reduced tillage – RT (stubble cultivator after the harvest of previous crop); and 3) herbicide tillage – HT (only glyphosate after the harvest of previous crop). A cultivation unit was applied on all plots in the springtime. Pea seed yield was higher by 14.1% in the CT than in the RT system and by 50.5% than in the HT system. The CT system was increasing the plant number m–2, number of pods and seeds m–2, seed mass per plant, and 1000 seeds mass, compared to the other systems. Protein content of seeds was at a similar level in all analyzed tillage systems, but was affected by the study year. In turn, the mineral composition of seeds was determined by both tillage system and study year. The seeds harvested from CT plots contained more phosphorus and iron, those from RT plots – more calcium and zinc, whereas those from HT plots – more phytate-P, potassium, magnesium, and copper, compared to the seeds from the other plots.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 147-158
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of trend changes in degree-day values of heating and cooling: broiler breeding case
    Autorzy:
    Yucel, A.
    Atilgan, A.
    Erdem, N.
    Oz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/101664.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    broiler
    linear regression analysis
    spearman rank correlation test
    temperature
    trend analysis
    Opis:
    An ideal broiler house should be designed to minimize the effects of weather changes and to keep indoor conditions at the comfort temperature of the animals. In this case, this should be done with minimum cost and possible lowest operating costs. Degree-day methods are used in order to have knowledge of the energy need of any structure. With this method, the measured values or meteorological data can be used to give information about the heating and cooling energy quantities of structures. Depending on the climate change in recent years, the changes need to be examined that have taken place in order to provide optimum comfort in animal barn. Isparta province and districts were selected as the study area. The longterm average daily temperature values are used from meteorological stations of the selected region. The heating and cooling degree day values were calculated for selected balance temperatures in broiler breeding. Linear Regression Analysis and Spearman Rank Correlation Test were conducted to determine the changes of these values due to climate change. In conclusion, it was determined that there were statistically significant trends at 5% significance level in Egirdir (21°C), Isparta (31-29-25 and 23°C), Kasimlar (18°C), Senirkent (31-29-25-23 and 21°C), Sutculer (all selected balance temperature values) and Yalvac (31-29-25-23 and 21°C) in terms of heating degree-day values, and in Atabey (29-25-23-21 and 18°C), Barla (25-23 and 21°C), Isparta (23-21 and 18°C), Senirkent (29- 25-23-21 and 18°C), Sutculer (29-25-23-21 and 18°C), Sarkikaraagac (25-23-21 and 18°C), Uluborlu (25-23-21 and 18°C) and Yalvac (25-23-21 and 18°C) in terms of cooling degree-day values. As a result, it has been concluded that more energy consumption will be a concern for heating and cooling of the broiler house that will be built in the province of Isparta.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/2; 645-660
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of feed particle size on breakage rate parameter in a pilot scale ball mill
    Wpływ rozmiaru ziaren nadawy na szybkość przemiału w półprzemysłowym młynie kulowym
    Autorzy:
    Erdem, S. A.
    Ergun, L. S.
    Benzer, H. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2070460.pdf
    Data publikacji:
    2009
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    mielenie
    młyn kulowy
    szybkość rozdrabniania
    rozmiar ziaren nadawy
    cement
    grinding
    ball mill
    breakage rate
    feed particle size
    Opis:
    The paper presents investigation results of feed particle size effects on the breakage ratę parameter in a pilot-scale ba]] mili. The specific ratę of breakage was calculated for each test by modelting of grinding process in a milt. The resutts revealed that breakage ratę increased with the increase of particle size within a certain size rangę and then de-creased despite the further increase of particle size. This tendency takes a similar pattern irrespective of a top ball size but the particle size at maximum breakage occurred as dependent on a top bali size in all tests. Consequent)y, the feed particle size is strongly related to the top baH size in bali media, which allows one to achieve optimum mili per-formance.
    Artykuł przedstawia rezultaty badań, w półprzemysłowym młynie kulowym, wpływu rozmiaru ziaren nadawy na szybkości rozdrabniania. Rozdrabnianie prowadzono w sposób okresowy. Następnie określono szybkość rozdrabniania, modelując proces mielenia. Wyniki badań dla wszystkich testów pokazały, że szybkość rozdrabniania wzrasta wraz ze wzrostem wielkości ziarna, w określonym przedziałe rozmiarowym, a następnie spada pomimo wzrostu wymiaru ziarna. Największe szybkości przemiału występują dla największych kuł, we wszystkich prowadzonych testach. Wskazuje to również, iż rozmiar ziaren jest silnie uzależniony od rozmiaru największych mielników, które pozwalają uzyskać optymalne warunki mielenia.
    Źródło:
    Inżynieria i Aparatura Chemiczna; 2009, 4; 34-37
    0368-0827
    Pojawia się w:
    Inżynieria i Aparatura Chemiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental Investigation of Interfacial Conditions between Fluid and Porous Layer Formed by Periodic Arrays of Circular and Non-Circular Cylinders
    Autorzy:
    Cihat Baytaş, A.
    Erdem, D.
    Acar, H.
    Cetiner, O.
    Başcı, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030800.pdf
    Data publikacji:
    2018-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    flows through porous media
    interfacial flows
    interface slip coefficient
    interface geometry
    composite channel
    PIV
    boundary condition
    Opis:
    In this experimental study, a flow through a two-dimensional channel partially containing porous media is investigated. A two-layer structure comprising of a saturated porous layer with an overlaying fluid flow layer in a rectangular horizontal channel is designed for the experiments. Flow characteristics at the interface between clear fluid and porous layer are investigated. The porous layer consists of cylindrical rod bundle placed horizontally on the side walls of the channel in arranged square arrays. In the experiments, water white oil is used as the working fluid to match the refractive index of the cylindrical rods made of Plexiglas. Visualizations and measurements have been acquired by digital particle image velocimetry system for the velocity profiles which help us to evaluate the interface velocity and slip coefficient at the interface region. The measurement of interface velocity profile is repeated for circular, square, and 45^{°} rotated square cylindrical rods to understand the effects of the structure of the interface region. It has been observed that dimensionless slip or interface velocity depends significantly on the surface structure at the interface region when cylindrical rods each with circular, square, and 45^{°} rotated square cross-sections are used as porous medium. The volumetric flow rate can be changed according to the cross-sections of cylindrical rods. The permeability for the different arrangements of cylindrical rods is computed by an analytical study. The dimensionless slip velocity, slip coefficient, particle image velocimetry images, experimental and numerical velocity vector maps, and velocity profiles at the interface are presented.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 5; 1314-1323
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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