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    Wyświetlanie 1-7 z 7
    Tytuł:
    Chemical composition of the soil material of Alfisols from the Vistulian Formation
    Autorzy:
    Dlugosz, J
    Breza-Boruta, B.
    Rozanski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1450443.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    physicochemical property
    Polska
    fluviglacial material
    soil material
    soil
    glacial material
    chemical composition
    terrestrial ecosystem
    Opis:
    Four pedons of Alfisols were selected from the Experimental Station Mochełek to study chemical composition of the soil material. The study area is located in the south-western border of the Krajeńska Upland, on the border of two geomorphological formations: erosion surface of floating waters (fluviglacial formation) and rolling ground moraine (glacial material). The investigated soils were classified as Typical Hapludalfs (pedon 11,21 and 26) and Typical Glossudalfs (pedon 7). Chemical composition was analysed using the following methods: fusion with Na2CO3 and dissolving in the HF and HCIO4 mixture. Results were presented in an oxide form and molar ratios (SiO2/R2O3; SiO2/Al2O3; Si02/Fe203; Al2O3/Fe203) were calculated. In the studied soils, the content of SiO2 was from 78.21 to 90.00 %. The lowest SiO2 content was found in the illuvial horizons. Otherwise the illuvial process influenced Al2O3 and Fe2CO3 distribution, the highest amounts of which were found in the illuvial horizons. TiO2 (0.15 to 0.63 %), had similar profile distribution to K2O (1.74-3.88 %) and Na20 (0.61- 1.05 %). CaO and MgO contents were the highest in the parent material, including CaCO3 (pedon 11 and 26). However, the highest amount of MnO was observed in the surface horizons (0.56-0.58 %). Chemical composition of the studied soil material indicated a large influence of the illuvial process and particle-size on the total content and profile distribution of the analysed soil. However, the evident influence of parent material from which the analysed soils were formed, was not found.
    Źródło:
    Acta Agrophysica; 2001, 50; 119-127
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Principles and requirements for the soil texture analysis according to methods recommended by International Standard Organization [ISO]
    Autorzy:
    Drzymala, S
    Powiązania:
    https://bibliotekanauki.pl/articles/1401927.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    International Standard Organization
    soil science
    Polish standard
    Polish Normalization Committee
    soil material
    particle size distribution
    International Standard-ISO 11277
    international standard
    soil texture
    Opis:
    For several years now the Polish Normalisation Committee (PKN) has been angaged in the process of introduction (and implementation) of international standards complying with the Internationsl Standard Organsation (ISO) into the set of of Polish Standards.At present, in the PKN Commission of Soil Physics, a number of such standards are being prepared (translated) -including a very comprehensive standard dealing with partiele size distribution determination in soil material-ISO 11277 [6], Some principles and requirements included in this standard differ significantly from those commonly accepted and widely in use now in numerous pedologie laboratories in Poland [7,8]. Below there are some of the most important differences: (1 ) the requirement to remove organic matter from test samples (using 30% v/v solution of H2O2), (2) the requirement to remove water soluble salts and gypsum (to electrical conductivity 0,4 dS/m), (3) sample dispersion process must be longer than 18 hours. Many other requirements, of relatively lesser importance, in many cases also do not correlate with those commonly accepted in our laboratories.
    Źródło:
    Acta Agrophysica; 2000, 35
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of various organic fertilisers on the heavy metal fractions in the soil. Part 3. Zinc, manganese and iron
    Autorzy:
    Filipek-Mazur, B
    Gondek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1449514.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    iron
    manganese
    chemical extraction
    soil
    organic material
    zinc
    soil property
    degraded ecosystem
    anthropogenic ecosystem
    organic fertilizer
    heavy metal
    Opis:
    The paper presents distribution of zinc, manganese and iron in fractions of soil treated with tannery sludge and compost of tannery sludge and peat, and, for the sake of comparison, the soil from a plot treated with farmyard manure (FYM), and mineral fertilisers. Total soil contents of zinc ranged from 38.0 to 47.3 mg kg-1 of soil. The share of mobile zinc forms ranged between 6.05-7.93%. Percentage of the exchangeable form was between 5.8-7.5% of the total Zn contents, while the share of forms bound with organic matter ranged between 10.7 and 12.7%. A considerable part of zinc was bound with manganese and iron oxides. Between 30.14- 43.72% of Zn were found in the residual form. Organic and mineral treatment influenced the share of easily soluble manganese compounds. It ranged between 15.6-19.7%. The least of manganese (1.0-2.0%) occurred in the compounds with crystalline iron oxides. The exchangeable form constituted between 3.4-4.2%, organic fraction accumulated slightly more. Manganese oxides retained the most of the element. Trace amounts of iron were revealed in the first three fractions. The biggest part of this metal was found in sparingly soluble compounds, mainly oxides (over 40%) and on residual fraction (over 30%).
    Źródło:
    Acta Agrophysica; 2001, 51; 215-220
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of various organic fertilisers on the heavy metal fractions in the soil. Part 2. Chromium and cadmium
    Autorzy:
    Filipek-Mazur, B
    Gondek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1449480.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    chromium
    chemical extraction
    soil
    cadmium
    organic material
    soil property
    degraded ecosystem
    anthropogenic ecosystem
    organic fertilizer
    agricultural chemistry
    heavy metal
    Opis:
    The subject of the paper was to determine chromium and cadmium fractions in the soils treated with tannery organic materials. Methods, characteristics of experimental materials and the tested soils were presented in the first part of the paper. After four years of investigations soil samples were collected for the assessment of the total content of chromium and cadmium and their fractions. Results of a sequential chemical extraction confirmed literature data on the weak mobility of this metal in the soil. After application of the studied fertilisers, the share of the most mobile Cr fractions was slight. Iron oxides and residual fractions were most important for chromium accumulation. Cadmium mobility in the soil and its easy uptake by plants is related to a considerable share of mobile forms. A large share of mobile form was noticed in the analysed soils (54.5-68.3%). Exchangeable fraction bound smaller amounts of cadmium (6.8-13.2%). Similar amounts of cadmium were accumulated in the fractions bound to manganese oxides (8.5-19.6%). Organic matter did not contribute to this element binding and the amounts of cadmium stored in this fraction were 2.3-6.6%. Only very small amount of cadmium was accumulated in the form bound with the initial minerals.
    Źródło:
    Acta Agrophysica; 2001, 51; 209-214
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of various organic fertilisers on the heavy metal fractions in the soil. Part 1. Lead, copper and nickel
    Autorzy:
    Filipek-Mazur, B
    Mazur, K.
    Gondek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1449430.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    chemical extraction
    soil
    organic material
    soil property
    copper
    lead
    degraded ecosystem
    anthropogenic ecosystem
    nickel
    organic fertilizer
    agricultural chemistry
    heavy metal
    Opis:
    The present investigations aimed at determining the effect of various organic materials, i.e. farmyard manure (FYM), organic tannery sludge and compost of such sludge and peat on lead, copper and nickel fractions content in soil. Doses of peat compost and organic sludge were calculated according to the nitrogen amount per a FYM dose. After four years of experiment, fractions of Pb, Cu and Ni compounds were assessed in the soil from individual plots using the Zeien and Brummer's sequence chemical extraction method. Heavy metal contents were determined using a ICP-AES in JY 238 Ultrace apparatus. Lead accumulated mainly in the form bound with organic matter and with amorphic iron oxides. This metal distribution reveals its slight share in the mobile and exchangeable forms. Composts and sludge introduced into the soil did not affect any significant changes of the individual lead forms share as compared to FYM and NPK treated plots and the control. Some amount of copper occurred as mobile forms in all the soils. In the soil of all the treated plots, copper occurred mainly bound with organic matter and amorphic iron oxides. The basic share of nickel was found in the residual fraction bound with internal crystalline nets of initial elements. Beside the residual form, nickel was connected mainly with organic matter.
    Źródło:
    Acta Agrophysica; 2001, 51; 201-208
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wplyw materialow budowlanych na zmiane wlasciwosci fizykochemicznych gleby lessowej z terenu miasta Lublina
    Influence of building materials on change of physico - chemical properties of loess soil of Lublin
    Autorzy:
    Bowanko, G
    Hajnos, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1632529.pdf
    Data publikacji:
    1999
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    miasta
    Lublin
    materialy budowlane
    gleby
    lessy
    zanieczyszczenia gleb
    wlasciwosci fizykochemiczne
    kwasowosc hydrolityczna
    odczyn gleby
    pH
    city
    Lublin city
    building material
    soil
    loess
    soil contaminant
    physicochemical property
    hydrolytic acidity
    soil pH
    Opis:
    W pracy tej została zanalizowany wpływ materiałów budowlanych na zmiany właściwości fizykochemiczne gleb miejskich. Wykonano analizy pH, kwasowości hydrolitycznej, zawartości kationów. Zmierzono też powierzchnię właściwą analizowanych próbek wykorzystując dwie metody: adsorpcję pary wodnej i adsorpcję azotu. Do analiz użyto następujące materiały budowlane: cegłę, beton, gazobeton, piasek oraz ich mieszaniny z glebą. Jako glebę wzorcową użyto glebę lessową charakterystyczną dla terenu miasta Lublina. Analizowana gleba została pobrana z odkrywki - Elizówka k. Lublina Słowa kluczowe: urbanoziemy. materiały budowlane, właściwości fizykochemiczne, adsorpcja azotu, adsorpcja pary wodnej.
    The main of this work was analyzing influence building materials which are in soil of all cities, on change physic-chemistry properties urban soil. Analyzed was pH,hydrolytic acidity, exchangeable bases (EB), and was measured surface area, by two method: nitrogen adsorption and water vapour adsorption. In experiments were used building materials like: brick, concrete, foambrown soil formed from loess (Elizówka- Lublin)
    Źródło:
    Acta Agrophysica; 1999, 23; 7-15
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metodyczne zagadnienia monitoringu statusu wody w wybranych materialach biologicznych
    Methodical questions of monitoring of water status in selected biological materials
    Autorzy:
    Malicki, M A
    Powiązania:
    https://bibliotekanauki.pl/articles/1630378.pdf
    Data publikacji:
    1999
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    agrofizyka
    materialy biologiczne
    zboza
    ziarno
    drewno
    gleby
    woda glebowa
    wilgotnosc gleby
    wilgotnosc ziarna
    wilgotnosc drewna
    temperatura
    zasolenie gleb
    potencjal wodny gleby
    pomiary wilgotnosci
    natlenienie
    monitoring
    agrophysics
    biological material
    cereal
    grain
    wood
    soil
    soil water
    soil moisture
    grain moisture
    wood moisture
    temperature
    soil salinity
    soil water potential
    moisture measurement
    oxygenation
    Opis:
    Methodical questions of monitoring of water status in soil, cereals grain and wood are discused ( where monitoring is understood as registration of time and spatial variability of selected properties). Amount of viariables which is necessary in order to determine water status depends on the complexion of the considered phenomena and is, so far, the matter of arbitrary choice. In most practical cases the water status is expressed only by moisture of the considered material ( like the building timber). In practical terms, two variables suffice to express water status in cereal grain: moisture and temperature. To describe water status in the soil not less then five variables are needed: amount of water (the soil moisture) soil water potential, salinity, oxygenation and temperature. The only sensors that can be integrated in modern data acquisition system must be read electrically. Therefore electroresistance and electrocapacitance methods were considered. Dielectric sensors were recognized as the proper choice.Soil is a complex material having instable characteristics. For this reason it is the most difficult task to monitor soil water status, particularly to determine the soil moisture. Therefore it has been assumed that measuring methods verified for the soil will be also suitable for other, less complex materials. Thus, monitoring of soil water status was mainly discussed. Special attention was focused to the time domain reflectometry, TDR, as the semi selective method for the soil moisture and salinity determination.
    Źródło:
    Acta Agrophysica; 1999, 19; 1-108
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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