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Wyświetlanie 1-15 z 26
Tytuł:
Effect of ventilation opening levels on thermal comfort status of both animal and husbandman in a naturally ventilated rabbit occupied building
Autorzy:
Ogunjimi, L.A.O.
Osunade, J.A.
Alabi, F.S.
Powiązania:
https://bibliotekanauki.pl/articles/24970.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2007, 21, 3; 261-267
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of rain intensity and initial soil moisture on hydrological responses in laboratory conditions
Autorzy:
Khaledi Darvishan, A.
Banasik, K.
Hamidreza Sadeghi, S.
Gholami, L.
Hejduk, L.
Powiązania:
https://bibliotekanauki.pl/articles/24223.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
Although the possibility of measuring and analysing all parts of the rainfall, infiltration, runoff, and erosion process as a natural hydrologic cycle in field conditions is still one of the more unattainable goals in the hydrological sciences, it can be accomplished in laboratory conditions as a way to understand the whole process. The initial moisture content is one of the most effective factors on soil infiltration, runoff, and erosion responses. The present research was conducted on a 2 m2 laboratory plot at a slope of 9% on a typical sandy-loam soil. The effects of the initial soil moisture content on the infiltration, runoff, and erosion processes were studied at four levels of initial soil moisture content (12, 25, 33, and 40 volumetric percentage) and two rainfall intensities (60 and 120 mm h-1). The results showed a significant (p ≤ 0.05) correlation between rainfall intensity and downstream splash, with r = 0.87. The results reflected the theory of hydrological responses, showing significant (p ≤ 0.05) correlations with r =-0.93, 0.98, -0.83, 0.88, and 0.73 between the initial soil moisture content and the time-to-runoff, runoff coefficient, drainage as a part of the infiltrated water, downstream splash, and total outflow sediment, respectively.
Źródło:
International Agrophysics; 2015, 29, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of single-kernel density of scab-damaged winter wheat
Autorzy:
Grabowski, A.
Siuda, R.
Lenc, L.
Grundas, S.
Powiązania:
https://bibliotekanauki.pl/articles/25329.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
.Measurements of single-kernel mass and volume made on healthy (control) and scab-damaged samples of grain of three winter wheat varieties never resulted in lower values of mean single-kernel density for scab-damaged grain. This finding, contrary to common opinion, can be explained as being a result of the comparable magnitude of relative decrease (due to infestation) of two features (mass and volume) that define single-kernel density. The discrepancy between results presented in this paper (kernel volume was determined with an air pycnometer) and the results in some other reports (liquid pycnometers used) can result from the different methods applied for kernel volume measurements: when a liquid medium is used the surface tension effect tends to overestimate the volume, especially for scabby kernels that are known to be shrivelled ie possessing voids and pores at the surface that the liquid cannot penetrate. As a consequence kernel density of scabby kernels can be significantly underestimated.
Źródło:
International Agrophysics; 2012, 26, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentration of free radicals in pea seeds after pre-sowing treatment with magnetic field
Autorzy:
Podlesny, J.
Misiak, L.E.
Podlesna, A.
Pietruszewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/25840.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2005, 19, 3; 243-249
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of new lines of winter wheat on microbiological activity in Luvisol
Autorzy:
Jezierska-Tys, S.
Rachon, L.
Rutkowska, A.
Szumilo, G.
Powiązania:
https://bibliotekanauki.pl/articles/24850.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
new line
winter wheat
wheat
microbiological activity
Luvisol
soil
bacteria
fungi
protease
urease
ammonification
nitrification
plant
root zone
microorganism
Opis:
The study presented in this paper was conducted under the conditions of a field experiment. Microbiological analyses were made at various stages of winter wheat plants developmentie heading, milk ripeness and full ripeness. The objective of the study was to acquire knowledge on the effect of cultivation of various lines of winter wheat on the numbers of bacteria and fungi with proteolytic capabilities, on protease and urease activity, and on the rate of the processes of ammonification and nitrification. The results of conducted study demonstrated that the number of proteolytic bacteria and fungi, as well as the activity of protease and urease, and the intensity of ammonification and nitrification processes in soil depended on both the development stage and cultivated line of winter wheat.
Źródło:
International Agrophysics; 2012, 26, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating the storage term in eddy covariance measurements: the ICOS methodology
Autorzy:
Montagnani, L.
Grunwald, T.
Kowalski, A.
Mammarella, I.
Merbold, L.
Metzger, S.
Sedlak, P.
Siebicke, L.
Powiązania:
https://bibliotekanauki.pl/articles/26482.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2018, 32, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eddy covariance raw data processing for CO2 and energy fluxes calculation at ICOS ecosystem stations
Autorzy:
Sabbatini, S.
Mammarella, I.
Arriga, N.
Fratini, G.
Graf, A.
Hortangl, L.
Ibrom, A.
Longdoz, B.
Mauder, M.
Merbold, L.
Metzger, S.
Montagnani, L.
Pitacco, A.
Rebmann, C.
Sedlak, P.
Sugut, L.
Vitale, D.
Papale, D.
Powiązania:
https://bibliotekanauki.pl/articles/25312.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2018, 32, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of supplemental UV-A irradiation in solid-state lighting on the growth and phytochemical content of microgreens
Autorzy:
Brazaityte, A.
Virsile, A.
Jankauskiene, J.
Sakalauskiene, S.
Samuoliene, G.
Sirtautas, R.
Novickovas, A.
Dabasinskas, L.
Miliauskiene, J.
Vastakaite, V.
Bagdonaviciene, A.
Duchovskis, P.
Powiązania:
https://bibliotekanauki.pl/articles/24425.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
ultraviolet irradiation
antioxidant
growth
phytochemistry
microgreen
seedling
vegetable
herb
bioactive compound
Opis:
In this study, we sought to find and employ positive effects of UV-A irradiation on cultivation and quality of microgreens. Therefore, the goal of our study was to investigate the influence of 366, 390, and 402 nm UV-A LED wavelengths, supplemental for the basal solid-state lighting system at two UV-A irradiation levels on the growth and phytochemical contents of different microgreen plants. Depending on the species, supplemental UV-A irradiation can improve antioxidant properties of microgreens. In many cases, a significant increase in the investigated phytochemicals was found under 366 and 390 nm UV-A wavelengths at the photon flux density (12.4 μmol m-2 s-1). The most pronounced effect of supplemental UV-A irradiation was detected in pak choi microgreens. Almost all supplemental UV-A irradiation treatments resulted in increased leaf area and fresh weight, in higher 2,2–diphenyl–1–picrylhydrazyl free-radical scavenging activity, total phenols, anthocyanins, ascorbic acid, and α-tocopherol.
Źródło:
International Agrophysics; 2015, 29, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of shallow subsurface flow pathway networks on corn yield spatial variation under different weather and nutrient management
Autorzy:
Morgan, B.J.
Daughtry, C.S.T.
Russ, A.L.
Dulaney, W.P.
Gish, T.J.
Pachepsky, Y.A.
Powiązania:
https://bibliotekanauki.pl/articles/2082501.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
subsurface flow pathways
ground penetrating radar
geographic weighted regression
corn yield
Opis:
Ground water availability can be a major spatially variable factor of crop yields. In soils with the infiltration-restricting layer, ground water can be organized in the network of channels that conduct water laterally in wet periods and become water storage and water subsidy sources for plants in dry periods. The objective of this work was to quantify the relationships between the distances to the subsurface flow pathway network and corn yield for different weather conditions and nutrient management. Corn yield was monitored across the manured and chemically fertilized fields at the USDA-ARS OPE3 experimental site in Maryland. Data were collected during dry, normal, and above normal years in terms of the amount of precipitation from planting to physiological maturity. The subsurface flow pathway network was delineated using ArcGIS from data on topography of the infiltration-restricting layer found mostly at depths between one and three meters. The geographically weighted regression was used. Adjusted determination coefficients of regressions ranged from 0.485 to 0.655. Decrease of the adjusted determination coefficients from a dry to normal year and an increase from the normal to wet year was found. Factoring the subsurface flow pathway network influence into crop management can be an important component of precision farming strategies.
Źródło:
International Agrophysics; 2019, 33, 2; 271-276
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation measurements at ICOS ecosystem stations
Autorzy:
Carrara, A.
Kolari, P.
Op the Beeck, M.
Arriga, N.
Berveiller, D.
Dengel, S.
Ibrom, A.
Merbold, L.
Rebmann, C.
SAbbatini, S.
Serrano-Ortiz, P.
Biraud, S.C.
Powiązania:
https://bibliotekanauki.pl/articles/25199.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2018, 32, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Standardisation of eddy-covariance flux measurements of methane and nitrous oxide
Autorzy:
Nemitz, E.
Mammarella, I.
Ibrom, A.
Aurela, M.
Burba, G.G.
Dengel, S.
Gielen, B.
Grelle, A.
Heinesch, B.
Herbst, M.
Hortnagl, L.
Klemmendtsson, L.
Lindroth, A.
Lohila, A.
McDermitt, D.L.
Meier, P.
Merbold, L.
Nelson, D.
Nicolini, G.
Nilsson, M.B.
Peltola, O.
Rinne, J.
Zahniser, M.
Powiązania:
https://bibliotekanauki.pl/articles/26301.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2018, 32, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil-meteorological measurements at ICOS monitoring stations in terrestrial ecosystems
Autorzy:
Op de Beeck, M.
Gielen, B.
Merbold, L.
Ayres, E.
Serrano-Ortiz, P.
Acosta, M.
Pavelka, M.
Montagnani, L.
Nilsson, M.
Klemedtsson, M.
Vicke, C.
De Ligne, A.
Moureaux, C.
Maranon-Jimenez, S.
Saunders, M.
Mereu, S.
Hortnagl, L.
Powiązania:
https://bibliotekanauki.pl/articles/25318.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2018, 32, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

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