Autor: TA. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparison of three techniques to assess surface heterogeneity of solids in soils
Autorzy:: Polubesova, T.A.
Pachepsky, Y.A.
Hajnos, M.
Jozefaciuk, G.
Sokolowska, Z.
Powiązania:: https://bibliotekanauki.pl/articles/25170.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: soil degradation
surface adsorption
surface heterogeneity
energy distribution
heterogeneity
Źródło:: International Agrophysics; 1997, 11, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Compression loading behaviour of sunflower seeds and kernels
Autorzy:: Selvam, T.A.
Manikantan, M.R.
Chand, T.
Sharma, R.
Seerangurayar, T.
Powiązania:: https://bibliotekanauki.pl/articles/25294.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: compression loading
sunflower
seed
kernel
rupture energy
moisture content
Opis:: The present study was carried out to investigate the compression loading behaviour of five Indian sunflower varieties (NIRMAL-196, NIRMAL-303, CO-2, KBSH-41, and PSH-996) under four different moisture levels (6-18% d.b). The initial cracking force, mean rupture force, and rupture energy were measured as a function of moisture content. The observed results showed that the initial cracking force decreased linearly with an increase in moisture content for all varieties. The mean rupture force also decreased linearly with an increase in moisture content. However, the rupture energy was found to be increasing linearly for seed and kernel with moisture content. NIRMAL-196 and PSH-996 had maximum and minimum values of all the attributes studied for both seed and kernel, respectively. The values of all the studied attributes were higher for seed than kernel of all the varieties at all moisture levels. There was a significant effect of moisture and variety on compression loading behaviour.
Źródło:: International Agrophysics; 2014, 28, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Zeolite and swine inoculum effect on poultry manure biomethanation
Autorzy:: Kougias, P.G.
Fotidis, I.A.
Zaganas, I.D.
Kotsopoulos, T.A.
Martzopoulos, G.G.
Powiązania:: https://bibliotekanauki.pl/articles/24779.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:: Poultry manure is an ammonia-rich substrate that inhibits methanogenesis, causing severe problems to the anaerobic digestion process. In this study, the effect of different natural zeolite concentrations on the mesophilic anaerobic digestion of poultry waste inoculated with well-digested swine manure was investigated. A significant increase in methane production was observed in treatments where zeolite was added, compared to the treatment without zeolite.Methane production in the treatment with 10 g dm-3 of natural zeolite was found to be 109.75% higher compared to the treatment without zeolite addition. The results appear to be influenced by the addition of zeolite, which reduces ammonia toxicity in anaerobic digestion and by the ammonia-tolerant swine inoculum.
Źródło:: International Agrophysics; 2013, 27, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Estimation of soil water evaporative loss after tillage operation using the stable isotope technique
Autorzy:: Busari, M.A.
Salako, F.K.
Tuniz, C.
Zuppi, G.M.
Stenni, B.
Adetunji, M.T.
Arowolo, T.A.
Powiązania:: https://bibliotekanauki.pl/articles/25434.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:: Application of stable isotopes in soil studies has improved quantitative evaluation of evaporation and other hydrological processes in soil. This study was carried out to determine the effect of tillage on evaporative loss of water from the soil. Zero tillage and conventional tillage were compared. Suction tubes were installed for soil water collection at the depths 0.15, 0.50, and 1.0 m by pumping soil water with a peristaltic pump. Soil water evaporation was estimated using stable isotopes of water. The mean isotopic composition of the soil water at 0.15 m soil depth were -1.15‰ (d18O) and -0.75‰ (dD) and were highly enriched compared with the isotopic compositions of the site precipitation. Soil water stable isotopes (d18O and dD) were more enriched near the surface under zero tillage while they were less negative down the profile under zero tillage. This suggests an occurrence of more evaporation and infiltration under conventional then zero tillage, respectively, because evaporative fractionation contributes to escape of lighter isotopes from liquid into the vapour phase leading to enrichment in heavy isotopes in the liquid phase. The annual evaporation estimated using the vapour diffusion equation ranges from 46-70 and 54-84 mm year-1 under zero and conventional tillage, respectively, indicating more evaporation under conventional tillage compared with zero tillage. Therefore, to reduce soil water loss, adoption of conservation tillage practices such as zero tillage is encouraged.
Źródło:: International Agrophysics; 2013, 27, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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