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    Wyświetlanie 1-5 z 5
    Tytuł:
    Feasibility of humidol application for improving fertility of sandy soils in the Legnica-Glogow Copper District [LGOM]
    Autorzy:
    Licznar, M
    Drozd, J.
    Licznar, S.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401883.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    mineral-organic fertilization
    physicochemical property
    chemical property
    soil fertility
    soil
    sandy soil
    Legnica-Glogow Copper Basin
    mineral fertilization
    Humidol Standard
    organic fertilization
    Opis:
    Effect of organic ( with Humidol Standard) and mineral (with NPK) fertilization on some physico-chemical and chemical properties of sandy soils in the LGOM region were studied.The experiment was founded with two factors and a sub-block method.Humidol Standard was intro- duced once, and minerał fertilisation each year. The studies showed that fertilisation with Humidol Standards inereased the amount of organie matter, improved fraction composition of humic com- pounds and physico-chemical properties of sandy soils. Fertilisation with Humidol Standard com- bined with NPK can be a safe agrotechnical treatment that improves soil fertility in a short period of time in the region of LGOM.
    Źródło:
    Acta Agrophysica; 2000, 35; 117-127
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ intensywnych systemów prowadzenia drzew jabłoni odmiany Jonagold na żyzności i urodzajność gleby
    Influence of the intensive planting systems of apple tree jonagold cultivar on soil fertility and productivity
    Autorzy:
    Licznar, M.
    Licznar-Malanczuk, M.
    Licznar, S.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402324.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    Acta Agrophysica; 2001, 56; 145-154
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial variability of uncultivated soils in derived savanna
    Autorzy:
    Obalum, S.E.
    Oppong, J.
    Igwe, C.A.
    Watanabe, Y.
    Obi, M.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/25426.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    The spatial variability of some physicochemical properties of topsoils/subsoils under secondary forest, grassland fallow, and bare-soil fallow of three locations was evaluated. The data were analyzed and described using classical statistical parameters. Based on the coefficient of variation, bulk density, total porosity, 60-cm-tension moisture content, and soil pH were of low variability. Coarse and fine sand were of moderate variability. Highly variable soil properties included silt, clay, macroporosity, saturated hydraulic conductivity, organic matter concentration, and cation exchange capacity. Overall, soil pH and silt varied the least and the most, respectively. Relative weighting showed that location dominantly influenced the soil variability, except for soil porosity and organic matter concentration influenced mostly by land use. Most of the soil data were normally distributed; others were positively skewed and/or kurtotic. The minimum number of samples (at 25 samples ha-1) required to estimate mean values of soil properties was highly soil property-specific, ranging from 1 (topsoil pH-H2O) to 246 (topsoil silt). Cation exchange capacity of subsoils related fairly strongly with cation exchange capacity of topsoils (R2 = 0.63). Spatial variability data can be used to extrapolate dynamic soil properties across a derived-savanna landscape.
    Źródło:
    International Agrophysics; 2013, 27, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Puddling intensity for late-season sawah systems based on soil hydrophysical conditions and rice performance
    Autorzy:
    Obalum, S.E.
    Watanabe, Y.
    Igwe, C.A.
    Obi, M.E.
    Wakatsuki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/26457.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    puddling intensity
    late-season sawah system
    soil condition
    hydrophysical condition
    rice
    grain yield
    Oryza sativa
    performance
    Opis:
    Lowland sawah farmers often puddle to improve soil hydrophysical conditions for rice, but the puddling intensity beyond which no extra yield increases occur is unknown. Agro- nomic effects of six mechanical puddling intensities were assessed in three Nigerian inland-valley bottoms. All puddled plots, irrespec- tive of intensity, produced similar effects at all three locations. At 10 days after transplanting, soil bulk density of all puddled plots re- presented mean decreases relative to control plots of about 22.4, 15.8, and 31.7% at Akaeze, Adani, and Ejeti, respectively. Soil bulk density and moisture content upon saturation were similar during 40-120 days after transplanting. All puddled plots consistently showed taller plants and greater tillering than control plots only at Ejeti. Grain yields were similar among treatments in Akaeze and Adani (mean, 3.71 and 6.42 Mg ha -1 , respectively), but one-pass puddling yielded numerically highest in both locations. At Ejeti, grain yields followed the trend for plant growth, with mean values of 4.36 and 1.81 Mg ha -1 for puddled and control plots, respecti- vely. One-pass puddling may be sufficient for sawah rice grown late particularly in less humid environments.
    Źródło:
    International Agrophysics; 2014, 28, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water-soluble polysaccharides from Opuntia stricta Haw. fruit peels: recovery, identification and evaluation of their antioxidant activities
    Autorzy:
    Koubaa, M.
    Ktata, A.
    Barba, F.J.
    Grimi, N.
    Mhemdi, H.
    Bouaziz, F.
    Driss, D.
    Chaabouni, S.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/25448.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    International Agrophysics; 2015, 29, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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