Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Australie → 1997 → The effect of fertiliser management practices on soil organic matter production in the semi-arid areas : a field and modelling approach

University of Adelaide (1997)

The effect of fertiliser management practices on soil organic matter production in the semi-arid areas : a field and modelling approach

Georgis, Kidane

Titre : The effect of fertiliser management practices on soil organic matter production in the semi-arid areas : a field and modelling approach

Auteur : Georgis, Kidane

Grade : Doctor of Philosophy (Ph.D.) 1997

Université de soutenance : University of Adelaide

Résumé
Studies the effect of nitrogen fertilizer on dry matter production under differing watering regimes. Investigates the accuracy of different crop and soil organic matter models for predicting crop yield, nitrogen uptake and changes in soil organic carbon and nitrogen. Compares the models with data from long-term field experiments on wheat in Australia and sorghum in Ethiopia. Finds that a higher crop yield and better nitrogen and water utilisation can be achieved if addition of nitrogen fertilizer is balanced with soil water.

Mots clés : Nitrogen fertilizers Arid regions - Crop yield Arid regions Computer simulation - Soils Arid regions - Composition Computer simulation. - Humus Arid regions Computer simulation.

Présentation

Page publiée le 8 juin 2008, mise à jour le 7 juin 2017