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Author |
Bojar, W.; Sinabell, F.; Verburg, R. |
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Title  |
Inventarisation of TradeM models |
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Conference Article |
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Year |
2012 |
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TradeM |
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Kickoff Meeting and Workshop: Modelling, European Agriculture with Climate Change for Food Security, 2012-10-15 to 2012-10-16 |
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MA @ admin @ |
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2331 |
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Author |
Bernardoni, E.; Acutis, M.; Ventrella, D. |
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Title |
Long-term durum wheat monoculture: modelling and future projection |
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Journal Article |
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Year |
2012 |
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Italian Journal of Agronomy |
Abbreviated Journal |
Ital. J. Agron. |
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7 |
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1 |
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13 |
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2039-6805 1125-4718 |
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CropM, ftnotmacsur |
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MA @ admin @ |
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4468 |
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Author |
De Sanctis, G.; Roggero, P.P.; Seddaiu, G.; Orsini, R.; Porter, C.H.; Jones, J.W. |
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Title |
Long-term no tillage increased soil organic carbon content of rain-fed cereal systems in a Mediterranean area |
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Journal Article |
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Year |
2012 |
Publication |
European Journal of Agronomy |
Abbreviated Journal |
European Journal of Agronomy |
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40 |
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18-27 |
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Keywords |
N fertilization; C dynamics; DSSAT; Wheat; Maize; Weed fallow; sandy loam soil; cropping systems; agricultural systems; climate-change; winter-wheat; sequestration; matter; model; fertilization; dynamics |
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Abstract |
The differential impact on soil organic carbon (SOC) of applying no tillage (NT) compared to conventional tillage (CT, i.e. mouldboard ploughing), along with three rates of nitrogen (N) fertilizer application (0,90 and 180 kg ha(-1) y(-1)), was studied under rain-fed Mediterranean conditions in a long-term experiment based on a durum wheat-maize rotation, in which crop residues were left on the soil (NT) or incorporated (CT). Observed SOC content following 8 and 12 years of continuous treatment application was significantly higher in the top 10 cm of the soil under NT than CT, but it was similar in the 10-40 cm layer. NT grain yields for both maize and durum wheat were below those attained under CT (on average 32% and 14% lower respectively) at a given rate of N fertilizer application. Soil, climate and crop data over 5 years were used to calibrate DSSAT model in order to simulate the impact of the different management practices over a 50-year period. Good agreement was obtained between observed and simulated values for crops grain yield, above-ground biomass and observed SOC values. Results from the simulations showed that under NT the weeds growing during the intercrop fallow period made a significant contribution to the observed SOC increase. When the contribution of the weed fallow was considered, NT significantly increased SOC in the top 40 cm of the soil at an average rate of 0.43, 0.31 and 0.03 t ha(-1) per year, respectively for 180,90 and 0 kg N ha(-1) year(-1), within the simulated 50 years. Under CT, a significant SOC increase was simulated under N180 and a significant decrease when no fertilizer was supplied. |
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ISSN |
1161-0301 |
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article |
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CropM |
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Call Number |
MA @ admin @ |
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4469 |
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Author |
Orsini, F.; Alnayef, M.; Bona, S.; Maggio, A.; Gianquinto, G. |
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Title |
Low stomatal density and reduced transpiration facilitate strawberry adaptation to salinity |
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Journal Article |
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Year |
2012 |
Publication |
Environmental and Experimental Botany |
Abbreviated Journal |
Environmental and Experimental Botany |
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81 |
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1-10 |
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Keywords |
stomatal density; leaf gas exchanges; transpiration; salt tolerance; osmotic adjustment; salt-stress tolerance; water-use efficiency; nacl salinity; hydraulic conductivity; irrigation water; dynamic indexes; leaf expansion; abscisic-acid; growth; plants |
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Water and soil salinization are major constraints to agricultural productions because plant adaptation to hyperosmotic environments is generally associated to reduced growth and ultimately yield loss. Understanding the physiological/molecular mechanisms that link adaptation and growth is one of the greatest challenges in plant stress research since it would allow us to better define strategies to improve crop salt tolerance. In this study we attempted to establish a functional link between morphological and physiological traits in strawberry in order to identify margins to “uncouple” plant growth and stress adaptation. Two strawberry cultivars, Elsanta and Elsinore, were grown under 0, 10.20 and 40 mM NaCl. Upon salinization Elsanta plants maintained a larger and more functional leaf area compared to Elsinore plants, which were irreversibly damaged at 40 mM NaCl. The tolerance of Elsanta was correlated with a constitutive reduced transpirational flux due to low stomata! density (173 vs. 234 stomata mm(-2) in Elsanta and Elsinore, respectively), which turned out to be critical to pre-adapt plants to the oncoming stress. The reduced transpiration rate of Elsanta (14.7 g H2O plant(-1) h(-1)) respect to Elsinore (17.7 g H2O plant(-1) h(-1)) most likely delayed the accumulation of toxic ions into the leaves, preserved tissues dehydration and consented to adjust more effectively to the hyperosmotic environment. Although we cannot rule out the contribution of other physiological and molecular mechanisms to the relatively higher tolerance of Elsanta, here we demonstrate that low stomatal density may be beneficial for cultivars prescribed to be used in marginal environments in terms of salinity and/or drought. (C) 2012 Elsevier B.V. All rights reserved. |
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2016-10-31 |
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0098-8472 |
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CropM |
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MA @ admin @ |
Serial |
4797 |
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Author |
Slawinski, C.; Brzezinska, M.; Lipiec, J. |
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Title |
MACSUR -Modelling European Agriculture with Climate Change for Food Security |
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Conference Article |
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Year |
2012 |
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CropM |
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A seminar on presenting the objectives of FACCE-JPI MACSUR project and discussing the participation of the Institute of Agrophysics PAS in this project (cooperation between partners: 139, 158, 162), Institute of Agrophysics Polish Academy of Sciences, Lub |
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MA @ admin @ |
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2842 |
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