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    Wyświetlanie 1-12 z 12
    Tytuł:
    Microbial activity and particulate organic matter content in soils with different tillage system use
    Autorzy:
    Gajda, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/26158.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    soil
    tillage system
    microbial biomass
    dehydrogenase activity
    particulate organic matter
    microbiological activity
    conventional tillage
    conservation tillage system
    Źródło:
    International Agrophysics; 2010, 24, 2; 129-137
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil biological activity as affected by tillage intensity
    Autorzy:
    Gajda, A.M.
    Przewloka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/25855.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    soil
    biological activity
    tillage intensity
    soil tillage system
    microbial biomass
    organic carbon
    dehydrogenase activity
    organic matter
    physical condition
    chemical condition
    nitrogen mineralization
    Opis:
    The effect of tillage intensity on changes of microbiological activity and content of particulate organic matter in soil under winter wheat duirng 3 years was studied. Microbial response related to the tillage-induced changes in soil determined on the content of biomass C and N, the rate of CO2 evolution, B/F ratio, the activity of dehydrogenases, acid and alkaline phosphatases, soil C/N ratio and microbial biomass C/N ratio confirmed the high sensitivity of soil microbial populations to the tillage system applied. After three year studies, the direct sowing system enhanced the increase of labile fraction of organic matter content in soil. There were no significant changes in the labile fraction quantity observed in soil under conventional tillage. Similar response related to the tillage intensity was observed in particulate organic matter quantities expressed as a percentage of total organic matter in soil. A high correlation coefficients calculated between contents of soil microbial biomass C and N, particulate organic matter and potentiallymineralizable N, and the obtained yields of winter wheat grown on experimental fields indicated on a high importance of biological quality of status of soil for agricultural crop production.
    Źródło:
    International Agrophysics; 2012, 26, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in soil quality associated with tillage system applied
    Autorzy:
    Gajda, A.M.
    Przewloka, B.
    Gawryjolek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/24340.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    The aim of this research was to evaluate changes in soil quality associated with the tillage system applied with chosen parameters of soil biological properties. The long-term field experiments were located at a private farm in Rogów (Zamooeæ region, E Poland) on a silt soil and at the Experimental Station in Laskowice (Wroc³aw region, S-W Poland) on a sandy loam soil. Soil samples were collected from 0-15 and 15-30 cm layers. Winter wheat was grown under traditional, reduced and no-tillage systems. The analyses included estimations of microbial biomass C and N content, microbial respiration rate, activity of dehydrogenase and arylsulfatase, and fluorescein diacetate hydrolysis. After eight years the effects of tillage on both soils were clearly noticed. In general, the less disturbing tillage systems enhanced the increase of soil biological activity by 15-40%, on average, than conventional tillage system. The significant correlations between microbial biomass, and/or enzyme activities with total organic C content indicate that concentration of organic C in soil environment plays an extremely important role in enhancing the stabilization and activity of soil microorganisms, and protection of an extracellular enzymes. The studied parameters of soil biological activity showed their sensitivity to tillage applied and may be considered as an useful indicators of soil quality in monitoring all conditions alter soil environment.
    Źródło:
    International Agrophysics; 2013, 27, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of irrigation and nutrient on physical properties of safflower seeds
    Autorzy:
    Feyzollahzadeh, M.
    Modares Motlagh, A.
    Nikbakht, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/25850.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    safflower
    Carthamus tinctorius
    seed
    irrigation
    nutrient
    physical property
    Opis:
    The effect of irrigation and nutrient treatments on physical properties of safflower seeds was investigated. Physical properties of safflower seeds were determined at a moisture content of 7% w.b. The parameters determined at different treatments were: size, geometric mean diameter, sphericity, surface area, mass, volume, bulk and true densities, porosity, and static and dynamic coefficient of friction. The results showed a better effect of the use of organic fertilizers in comparison with chemical ones. The results showed that nutrient and irrigation treatments had a significant effect on most of the physical properties of safflower seeds at p<0.01.
    Źródło:
    International Agrophysics; 2014, 28, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of long-term use of different farming systems on some physical, chemical and microbiological parameters of soil quality
    Autorzy:
    Gajda, A.M.
    Czyz, E.A.
    Dexter, A.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/24836.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    long-term use
    farming system
    physical parameter
    chemical parameter
    microbiological parameter
    soil quality
    organic matter
    bulk density
    Źródło:
    International Agrophysics; 2016, 30, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Irrigation and fertigation scheduling under drip irrigation for maize crop in sandy soil
    Autorzy:
    Ibrahim, M.M.
    El-Baroudy, A.A.
    Taha, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/26207.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    irrigation
    fertigation
    drip irrigation
    maize
    yield
    water productivity
    crop
    sandy soil
    field experiment
    Źródło:
    International Agrophysics; 2016, 30, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected physico-mechanical characteristics of cryogenic and ambient ground turmeric
    Autorzy:
    Barnwal, P.
    Mohite, A.M.
    Singh, K.K.
    Kumar, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/25528.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    physical characteristics
    mechanical characteristics
    cryogenic grinding
    ambient grinding
    turmeric
    Curcuma longa
    packaging
    handling
    storage
    Opis:
    In this communication, selected physicomechanical characteristics of ground turmeric (cv. Prabha) were investigated for cryogenic and ambient grinding conditions of turmeric at different moisture contents (4, 6, 8 and 10% w.b.). A cryogenic grinder (Model: 100 UPZ, Hosokawa Alpine, Germany) and a micro pulverizer (hammer mill) were used for cryogenic and ambient grinding, respectively. The ground turmeric was graded in three grades viz. Gr-I, Gr-II and Gr-III with a sieve shaker using BSS Nos. 40, 85 and pan, respectively. Tap densities for cryogenic and ambient ground turmeric decreased from 678.7 (Gr-I) to 546.7 kgm-3 (Gr-III) and from 642.3 (Gr-I) to 468.6 kgm-3 (Gr-III), respectively, with the moisture increase. The angle of repose for cryogenic and ambient ground turmeric increased linearly from 26.85 (Gr-I) to 34.0° (Gr-III) and from 23.10 (Gr-I) to 28.06° (Gr-III), respectively with the increase in moisture content. The static coefficient of friction was the highest on plywood surface followed by mild steel sheet and galvanized iron sheet. The cryoground samples were found better in colour. Thermal conductivity of cryo-ground samples was higher than that of ambient ground samples. These physico-mechanical characteristics of cryogenic and ambient ground turmeric will be helpful for packaging, handling, and storage.
    Źródło:
    International Agrophysics; 2014, 28, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Response of maize and black gram yield and water productivity to variations in canopy temperature and crop water stress index
    Autorzy:
    Khorsand, A.
    Rezaverdinejad, V.
    Asgarzadeh, H.
    Heris, A.M.
    Rahimi, A.
    Besharat, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082909.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    canopy temperature
    crop yield
    CWSI
    phenolic
    and flavonoid compounds
    water stress
    Opis:
    In order to evaluate the ability of the crop water stress index to estimate grain yield and water productivity of maize and black gram in the climatic conditions of Urmia (Iran), research was conducted under the conditions of single-row drip irrigation. This study was conducted in a randomized complete block design with four irrigation levels including 50 (I1), 75 (I2), 100 (I3) and 125 (I4) percent of the water requirements of the plants with three replications. The mean crop water stress index values for the I1, I2 and I3 treatments were 0.53, 0.44, and 0.28, respectively during the growth period of maize, and 0.37, 0.23, and 0.15 for black gram, respectively. In the present study, the correlation between the crop water stress index and the grain yield and also the water productivity of maize and black gram was high. According to the results, the highest grain yield for maize and black gram was obtained at crop water stress index values of 0.28 and 0.15, respectively. Therefore, these values are recommended for the irrigation scheduling of the plants. It should be noted that the maximum water productivity index for maize and black gram was obtained at crop water stress index values of 0.44 (I2) and 0.37 (I1), respectively, which are the values recommended for irrigation scheduling under restricted access to water.
    Źródło:
    International Agrophysics; 2020, 34, 3; 381-390
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of composition changes and aeration time on the structure and rehydration of innovative freeze-dried gels
    Autorzy:
    Ciurzynska, A.
    Pisarska, A.
    Olsinski, I.
    Panfiluk, A.M.
    Ostap, M.S.
    Lenart, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24190.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    International Agrophysics; 2018, 32, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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