The effect of soil texture on the water use efficiency of irrigated crops: Results of a multi-year experiment carried out in the Mediterranean region
| Autor: | Marcello Mastrorilli, Nader Katerji |
|---|---|
| Přispěvatelé: | Environnement et Grandes Cultures (EGC), AgroParisTech-Institut National de la Recherche Agronomique (INRA), Research Unit for Cropping Systems in Dry Environments, Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Bari (CIHEAM-IAMB), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM), Institut National de la Recherche Agronomique (INRA)-AgroParisTech |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
0106 biological sciences
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences Irrigation Stomatal conductance Soil texture Soil Science Plant Science SOIL TEXTURE 01 natural sciences complex mixtures AGRONOMIE Water-use efficiency 2. Zero hunger Crop yield fungi food and beverages Soil classification 04 agricultural and veterinary sciences 15. Life on land ECOPHYSIOLOGIE WATER USE EFFICIENCY YIELD ACTUAL EVAPOTRANSPIRATION Agronomy ETAT HYDRIQUE DE LA PLANTE Loam Soil water 040103 agronomy & agriculture PLANT WATER STATUS 0401 agriculture forestry and fisheries Environmental science GROWTH Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | European Journal of Agronomy European Journal of Agronomy, Elsevier, 2009, 30 (2), pp.95-100. ⟨10.1016/j.eja.2008.07.009⟩ |
| ISSN: | 1161-0301 |
| DOI: | 10.1016/j.eja.2008.07.009⟩ |
| Popis: | The effect of soil texture on water use efficiency (WUE) was analyzed for six crops cultivated on loam and clay soils. Results were obtained after a long-term study, carried out in a lysimetric set-up, in conditions of experimental neutrality (climate, agro-techniques, and variety were the same for each crop) with the sole exception of the soil texture, which was the variable to be studied. In the case of potato, corn, sunflower, and sugar beet, WUE was reduced significantly when crops were grown in clay soil. The reductions ranged from 22% to 25%. The decrease of WUE in clay soil was coupled with significant reductions in yield and in ET, except in the case of the corn crop. The reduction in WUE in corn depended solely on the yield decrease. A 10% decrease in WUE values was also observed for the soy-bean and tomato grown in clay soil, but it was not statistically significant. Different causes which may reduce the WUE values observed in the clay soil are discussed. It seems coherent to hypothesize that, during the active growing phase, a deficit in water uptake occurs in the plants growing in the clay soil. This hypothesis is consistent with the observations of stomatal conductance, daily evapotranspiration, and leaf surface. In conclusion, the operative development of this study is outlined. |
| Databáze: | OpenAIRE |
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