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    Wyświetlanie 1-5 z 5
    Tytuł:
    Least limiting water range of Udox soil under degraded pastures on different sun-exposed faces
    Autorzy:
    Ribeiro Passos, Renato
    Marciano da Costa, Liovando
    Rodrigues de Assis, Igor
    Andrade Santos, Danilo
    Alberto Ruiz, Hugo
    Abdalla de Oliveira Prata Guimarães, Lorena
    Vaz Andrade, Felipe
    Powiązania:
    https://bibliotekanauki.pl/articles/972921.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    : soil quality
    degraded soils
    soil physics
    Opis:
    The efficient use of water is increasingly important and proper soil management, within the specificities of each region of the country, allows achieving greater efficiency. The South and Caparaó regions of Espírito Santo, Brazil are characterized by relief of ‘hill seas’ with differences in the degree of pasture degradation due to sun exposure. The objective of this study was to evaluate the least limiting water range in Udox soil under degraded pastures with two faces of exposure to the sun and three pedoenvironments. In each pedoenvironment, namely Alegre, Celina, and Café, two areas were selected, one with exposure on the North/West face and the other on the South/East face. In each of these areas, undisturbed soil samples were collected at 0-10 cm depth to determine the least limiting water range. The exposed face of the pasture that received the highest solar incidence (North/West) presented the lowest values in least limiting water range. The least limiting water range proved to be a physical quality indicator for Udox soil under degraded pastures.
    Źródło:
    International Agrophysics; 2017, 31, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research into Comparative Performance of Different Tillage and Fertilization Systems Applied to Grey Forest Soil of Forest Steppe in Grain Crop Rotation
    Autorzy:
    Kaminskyi, Viktor
    Bulgakov, Volodymyr
    Tkachenko, Mykola
    Kolomiіets, Mykola
    Kaminska, Valentina
    Ptashnik, Mykhailo
    Ivanovs, Semjons
    Kiernicki, Zbigniew
    Powiązania:
    https://bibliotekanauki.pl/articles/2202309.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    agrotechnology
    alternative tillage
    fertilization
    productivity
    soil physics
    Opis:
    The paper summarises the results of the comprehensive scientific research carried out in the form of a two-factor stationary experiment (5 primary tillage systems × 3 fertilization systems) with rotation (2016–2020) of cereal crops (winter wheat – grain maize – spring barley – soybean) in grey forest fine sand and light loam soil. The effectiveness of the tested agricultural production method has been proven by the amplitudes of the actual cropping capacities: winter wheat – 2.80–5.00 t∙ha–1; grain maize – 4.16–8.89 t∙ha–1; spring barley – 1.78–4.45 t∙ha–1; soybean – 1.02–3.17 t∙ha–1. The rehabilitation of the physical, agrochemical and biological status of the edatope and the consolidation of the physiological processes in the grain cenoses achieved by the systemic approach to the soil tillage and fertilisation have provided for an increase in the natural biological potential of the plough land by a factor of 1.3–1.8 (from 2.96 to 5.21 t∙ha–1 of grain units, units for the equivalent measuring of different plant cultivation products). Factographic justification has been provided for the environmental, technological and technical-and-economic feasibility of implementing agronomic technologies based on the adaptive combination of mouldboard and non-mouldboard tillage (to a depth of 6–45 cm) and organic and mineral fertilization system (6.5–7.0 t∙ha–1 of plant cultivation by-products + N70P58K68). In this case, the effective fertility of an area unit in crop rotation reaches 5.72 t∙ha–1 in grain units, the production cost of raised grain – 117 €∙t–1, the earning capacity – 788 € (ha∙year) –1, the level of plant cultivation profitability – 139%. In the comparable alternatives of the system-based soil tillage (every-year ploughing, subsurface blade tillage and especially tillage with disk implements), the indices estimated above are significantly lower.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 12; 163--178
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design, construction and performance of a pressure chamber for water retention curve determination through traditional and nuclear methods
    Autorzy:
    Pires, L.
    Bacchi, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/146181.pdf
    Data publikacji:
    2006
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    soil water potential
    gamma-ray attenuation
    soil water content
    soil physics
    radioisotope application
    Opis:
    We present in this work a detailed design of a small low-pressure chamber outfitted with a ceramic porous plate for evaluating the soil water retention curve (SWRC) in the water potential range from 0 to -100 kPa. The chamber is made of acrylic and permits the use of one unique soil sample each time. The use of this chamber allows quick measurements of soil moisture using nuclear (based on gamma-ray attenuation) and conventional methods and SWRC determinations made with the designed chamber are in agreement with those obtained using a commercial low-pressure chamber. The chamber was designed especially for testing the use of the nuclear method as an auxiliary tool for SWRC determinations but it can be easily adapted for routine investigations and a practical alternative for the conventional SWRC method.
    Źródło:
    Nukleonika; 2006, 51, 4; 225-230
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gamma-ray computed tomography as a tool to evaluate porosity changes along depth for surface crusted soils
    Autorzy:
    Pires, L. F.
    Bacchi, O. O. S.
    Reichardt, K.
    Dias, N. M. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/146838.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    gamma-ray attenuation
    soil density
    soil structure
    soil surface sealing
    241 Am
    applied nuclear physics
    gamma tomography
    Opis:
    Assessment of changes in porosity (ö) along depth for soils with surface crusting is difficult because conventional soil physical investigation tools are destructive and usually require a long period of time for preparation and analysis of the samples. Computed tomography (CT) has frequently been used as a method to evaluate soil structure in a nondestructive, sensitive, and rapid manner. CT data can be used for measuring at a millimetric scale changes in ö along depth for soils with surface crusting. The main objective of this work was to investigate the sensibility of the gamma-ray CT to assess soil structural changes along depth in samples presenting structural crust. CT images were taken with a first generation scanner of 1.14 mm resolution along eight different soil layers within the 0 28 mm depth. Porosity increased along depth up to the 14 17.5 mm layer. Through the analysis of the ö distribution of each layer it was possible to show that the sealed surface layer presented ö values of approximately 30%, while the other layers were greater than 30% up to 60% (macropore regions). The sealing crust thickness was estimated to be in the range of 2.3 3.5 mm.
    Źródło:
    Nukleonika; 2007, 52, 3; 125-131
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calibration of soil probe for in situ permeability measurement
    Kalibracja sondy glebowej do pomiarów przepuszczalności gruntu in situ
    Autorzy:
    Janik, M.
    Kozak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/340200.pdf
    Data publikacji:
    2004
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    skażenie radonem
    sonda glebowa
    Instytut Techniki Jądrowej PAN w Krakowie
    radon contamination
    soil probe
    Institut of Nuclear Physics Polish Academy of Sciences in Kraków
    Źródło:
    Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2004, 1; 58-59
    1643-7608
    Pojawia się w:
    Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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