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Valutazione degli antiossidanti dell'olio di oliva mediante iniezione diretta in HPLC con sistema di rivelazione fluorimetrica o spettroscopia di fluorescenzaUrbani, Stefania <1972> 17 April 2007 (has links)
No description available.
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Studio delle proprietà idrologiche in suoli agrariSalvatorelli, Fiorenzo <1979> 08 June 2007 (has links)
No description available.
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153 |
Indagini sull'artropodofauna del nocciolo con particolare riguardo a eterotteri coreidi e pentatomidi e Curculio nucum Linnaeus, responsabili di decrementi quali-quantitativi delle produzioni corilicoleGuidone, Loredana <1978> 19 June 2007 (has links)
No description available.
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Ecofisiologia del ciclo biologico di Osmia lignaria Say (Hymenoptera megachilidae)Sgolastra, Fabio <1977> 19 June 2007 (has links)
No description available.
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155 |
Miglioramento della qualità della carne suina: modificazioni della frazione lipidica nella filiera di produzione del suino pesanteBrogna, Nico <1973> 15 June 2007 (has links)
No description available.
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156 |
Micotossine e produzioni zootecniche: esperienze su galline ovaiole e suiniPaganelli, Riccardo <1976> 15 June 2007 (has links)
No description available.
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157 |
New water use efficiency strategies to cope with climate changeGuerra, Elisa <1982> 10 June 2013 (has links)
Crop water requirements are important elements for food production, especially in arid and semiarid regions. These regions are experience increasing population growth and less water for agriculture, which amplifies the need for more efficient irrigation. Improved water use efficiency is needed to produce more food while conserving water as a limited natural resource.
Evaporation (E) from bare soil and Transpiration (T) from plants is considered a critical part of the global water cycle and, in recent decades, climate change could lead to increased E and T. Because energy is required to break hydrogen bonds and vaporize water, water and energy balances are closely connected. The soil water balance is also linked with water vapour losses to evapotranspiration (ET) that are dependent mainly on energy balance at the Earth’s surface.
This work addresses the role of evapotranspiration for water use efficiency by developing a mathematical model that improves the accuracy of crop evapotranspiration calculation; accounting for the effects of weather conditions, e.g., wind speed and humidity, on crop coefficients, which relates crop evapotranspiration to reference evapotranspiration.
The ability to partition ET into Evaporation and Transpiration components will help irrigation managers to find ways to improve water use efficiency by decreasing the ratio of evaporation to transpiration. The developed crop coefficient model will improve both irrigation scheduling and water resources planning in response to future climate change, which can improve world food production and water use efficiency in agriculture.
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Soil organic carbon dynamics under perennial energy cropsZatta, Alessandro <1976> 10 June 2013 (has links)
The European renewable energy directive 2009/28/EC (E.C. 2009) provides a legislative framework for reducing GHG emissions by 20%, while achieving a 20% share of energy from renewable sources by 2020. Perennial energy crops could significantly contribute to limit GHG emissions through replacing equivalent fossil fuels and by sequestering a considerable amount of carbon into the soil through the large amounts of belowground biomass produced. The objective of this study is to evaluate the effects of land use change that perennial energy crops have on croplands (switchgrass) and marginal grasslands (miscanthus). For that purpose above and belowground biomass, SOC variation and Net Ecosystem Exchange were evaluated after five years of growth. At aboveground level both crops produced high biomass under cropland conditions as well as under marginal soils. At belowground level they also produced large amounts of biomass, but no significant influences on SOC in the upper layer (0-30 cm) were found. This is probably because of the "priming effect" that caused fast carbon substitution. In switchgrass only it was found a significant SOC increase in deeper layers (30-60 cm), while in the whole soil profile (0-60 cm) SOC increased from 42 to 51 ha-1. However, the short experimental periods (for both switchgrass and miscanthus), in which land use change was evaluated, do not permit to determine the real capacity of perennial energy crops to accumulate SOC. In conclusion the large amounts of belowground biomass enhanced the SOC dynamic through the priming effect resulting in increased SOC in cropland but not in marginal grassland.
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Soil tillage and crop rotation effects on Triticum durum (Desf.) yield and mycotoxins content in its grainBabini, Viviana <1963> 19 June 2007 (has links)
No description available.
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Application of nuclear magnetic resonance spectroscopy for the evaluation of folding variability in calcium binding proteins and its implications in food allergiesCasadei, Federica <1978> 22 May 2007 (has links)
No description available.
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