Les séminaires ont lieu sur le Campus Montpellier SupAgro/INRA de La Gaillarde (2, place P. Viala Montpellier)
Jeudi 22 mai 2014
Coping with Zinc Deficiency – From Correcting Soil-Born Zinc Deficiency to Crop Biofortification through Agronomic Measures
Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, Turkey
Adequate nutrition with zinc (Zn) is essential for all living things. Plants and thus animals are prone to Zn deficiency problem when soils contain low levels of bioavailable-Zn. Human populations also suffer from soil-born Zn deficiency, mainly due to heavy reliance on cereal- based diets. Human Zn deficiency problem is becoming more pronounced when cereals are cultivated on Zn-deficient soils which occur at least in 1/3 of the cultivated soils. A short-term and practical solution to low dietary intake of Zn and thus Zn deficiency in human populations is to consider agronomic strategies such as Zn fertilization. This presentation will cover agronomic measures used to (i) correct soil-born zinc deficiency problem and (ii) biofortify cereal grains with Zn. We will start with a striking story of diagnosing the prevalence of Zn deficiency in Central Anatolia plains and continue with impacts of use of Zn-efficient cultivars, Zn fertilization and irrigation regimes to minimize yield losses. In the second part we will focus on the effectiveness of agronomic approaches on both productivity and biofortification of cereals with Zn by providing data from large-scale field experiments conducted in various climatic regions around the world.
Contact : Hatem Rouached