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    Wyświetlanie 1-5 z 5
    Tytuł:
    Evaluation of irrigation efficiency in selected field crops grown in eastern Wielkopolska, Poland
    Autorzy:
    Stachowski, P.
    Liberacki, D.
    Kozaczyk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/101576.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    sprinkler irrigation
    winter oilseed rape
    winter wheat
    increase in seed yield
    irrigation efficiency
    Opis:
    The paper presents results of a controlled field experiment with sprinkler irrigation of winter oilseed rape (Latin name) cv. Arsenal F1 Linagrain and winter wheat (Latin name) cv. Franz, conducted in the vegetation season of 2016 (dry in terms of the recorded precipitation total) on a family farm in Kobylata, the Kłodawa commune, the Wielkopolskie Province. Water requirement observed as early as April was balanced by sprinkler irrigation in seasonal application rates ranging from 75 mm (rape) to 105 mm (wheat). Sprinkling of winter rape was the factor having a highly significant effect on seed yield volume, on average from 4 plots amounting to 4.1 t·ha-1 and by 17.4% greater than the yield harvested in the non-irrigated plots (control) - of 0.6 t·ha-1. Winter wheat, at the application of sprinkler irrigation, also produced greater yields (by 24%) in comparison to the non-irrigated plots. Mean grain yield of wheat in the irrigated plots was by 1.9 t·ha-1 greater. Advisability of irrigation, apart from higher yielding, may also be indicated by water use efficiency in these crops. Every mm of sprinkled water caused an increase in of rape by 7.9 kg, while in wheat by 17.8 kg.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2018, III/1; 649-658
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of economic efficiency of irrigation in corn for grain production in 2005-2016
    Autorzy:
    Kledzik, R.
    Kropkowski, M.
    Dudek, S.
    Kuśmierek-Tomaszewska, R.
    Żarski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/101496.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    drip irrigation
    sprinkler irrigation
    economic efficiency
    corn for grain
    drought categories
    Opis:
    To evaluate the economic efficiency of irrigation in corn cultivated for grain, production effects were used, which were obtained from studies conducted by researcher team from the Department of Land Reclamation and Agrometeorology at the Experiment Station of the UTP University of Science and Technology in Bydgoszcz in 2005-2016. The research covered the effect of irrigation on yielding of the crop. Economic efficiency calculations were made using the direct surplus increase calculation method. In each variant irrigation enhanced production effects. It was not always economically justified, however. The irrigation costs (for drip and sprinkler irrigation systems) per hectare were decreasing with an increase in acreage. Applying drip irrigation was economically unjustified in moist years and on average in the multi-year period. In the years with dry and average precipitation conditions the direct surplus was positive, except for irrigation of 1 ha. As for the sprinkler-irrigation system, a lack of economic efficiency was reported in moist years, whereas in dry and average years as well as on average in the multi-year period, except for 1 hectare acreage, corn sprinkler-irrigation was economically justified.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 587-598
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of World Water Resources in the Irrigation of Field Cultivations
    Autorzy:
    Walczak, Amadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1839599.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    SWOT analysis
    drip line
    sprinkler irrigation
    prediction
    irrigation system
    world water resources
    water use efficiency
    WUE
    Opis:
    The paper concerns evaluation of the exploitation of the world’s water resources for irrigating field crops. It was determined that the volume of water used in 2020 in all sectors of the economy in relation to the world’s freshwater resources will amount to 31 to 38% of the available resources. It has been found that globally, in the period 1900–2100, the agricultural sector has the highest consumption of fresh water. Therefore, there is a need for rational use of water, especially when irrigating field crops. Hence, the paper describes the methods of evaluating the effectiveness of irrigation. The indicators from the Water use efficiency group, which consider the yield obtained from a given area and the sum of irrigation doses, were considered the most reliable form of evaluation. Determining the indicator should also be accompanied by a presentation of the scope of work related to irrigation, water quality, cultivation techniques, fertilization and environmental conditions of the growing season. The work characterizes the selected pressure irrigation systems, considering their advantages and disadvantages. On this basis, the paper presents the adaptation of the SWOT analysis for two irrigation systems: a reel sprinkler with a water cannon and a drip tape.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 4; 186-206
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efektywność deszczownianego nawadniania ogórków gruntowych w warunkach produkcyjnego gospodarstwa ogrodniczego
    Efficiency of sprinkler irrigation the cucumbers in terms of horticultural farm
    Autorzy:
    Lipiński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/338142.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    efektywność ekonomiczno-finansowa
    nawodnienia deszczowniane
    ogórki
    produktywność nawodnień
    cucumbers
    economic and financial efficiency
    irrigation productivity
    sprinkler irrigation
    Opis:
    W pracy zaprezentowano ocenę ekonomiczno-finansowej efektywności deszczownianego nawadniania ogórków w produkcyjnym gospodarstwie ogrodniczym. Ocena ta została przeprowadzona metodą zdyskontowanych przepływów pieniężnych (DCF). Jej podstawą były wyniki badań parametrów istotnych w rachunku efektywności (m.in. zwyżki plonów i przychodów ze sprzedaży ogórków na skutek nawodnień, kosztów zakupu i eksploatacji deszczowni). Badania wykazały, że zwyżka plonów na skutek nawodnień w latach badań wynosiła od 3,0 do 9,1 t•ha-1 (średnia 6,6 t•ha-1), a produktywność nawodnień, mierzona zwyżką plonów na m3 wody, w granicach 6,0‒19,2 kg (średnia 14,5 kg). Finansowa wewnętrzna stopa zwrotu z nawodnień (FRR) wyniosła 63%, finansowa aktualna wartość netto (FNPV) w warunkach stopy dyskontowej r = 6% równa się 21,8 tys. zł, wskaźnik FBCR = 1,64, a czas zwrotu nakładów inwestycyjnych wyniósł 1,5 roku. Wskaźniki te dowodzą, że nawadnianie ogórków jest ekonomicznie uzasadnione.
    The paper presents an assessment of the economic and financial efficiency of sprinkler irrigation of cucumbers in vegetable farm production. This assessment was carried out using the discounted cash flow method (DCF). The base of calculation was the results of research parameters which are important in the statement efficiency (including increases in yields and revenues from the sale of cucumbers as a result of irrigation, the capital expenditures and operating costs of irrigation). Studies have shown that increases yields through irrigation in the study ranged from 3.0 to 9.1 t∙ha-1 (average 6.6 t∙ha-1) and the productivity of irrigation measured rise in the yields per m3 of water was in the range 6.0‒19.2 kg (mean 14.5 kg). The financial internal rate of return (FRR) was 63%, financial net present value (FNPV) under the discount rate r = 6% equals 21.8 thousand PLN, FBCR = 1.64, and the payback time was 1.5 years. These indicator shows that irrigation cucumber is economically justified.
    Źródło:
    Woda-Środowisko-Obszary Wiejskie; 2016, 16, 3; 61-71
    1642-8145
    Pojawia się w:
    Woda-Środowisko-Obszary Wiejskie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of sprinkler irrigation and nitrogen fertilization on the quality of malt and wort from barley grains
    Autorzy:
    Błażewicz, J.
    Żarski, J.
    Dudek, S.
    Kuśmierek-Tomaszewska, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/101297.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    malting barley
    sprinkler irrigation
    nitrogen fertilization
    malt
    wort
    simplified mashing efficiency
    Opis:
    The aim of the research was the evaluation of sprinkler irrigation and nitrogen fertilization on some selected features of the quality of malt and wort from ‘Marthe’ and ‘Mauritia’ malting barley grains. The field experiment was carried out in the years 2010-2012 at the Research Station of the University of Science and Technology in Mochełek near Bydgoszcz. As a result of 3-year field experiment and laboratory test of grain, malt and wort, it was found that introducing sprinkler irrigation into the production process of malting barley is a step justified by the obtained quality effects. It was found that in the case of irrigated malting barley cultivations nitrogen fertilization at the rate of 30 kg·ha-1 provides (in relation to control, non-irrigated treatment) the highest values of such parameters as weight of the technical barley crops, content of protein, extractivity of Pilsen type malt, amount of obtained wort and simplified mashing efficiency. The combination of sprinkler irrigation of malting barley plants with their nitrogen fertilization at the increased rates of 60 and 90 kg·ha-1, resulted in the following effect – high mass of the usable grain of crops remained but their quality deteriorated. Malt produced from malting barley fertilized with nitrogen at the rates of 60 and 90 kg·ha-1, in spite of applied sprinkler irrigation, was characterized by unacceptable – from the technological point of view - increased content of protein in malt in the amount of over 11.5% d.m., as well as huge decrease in malt extractivity (even by 2%) and lower, simplified mashing efficiency (below 70%).
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/1; 1469-1481
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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