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Herb'sim : un modèle pour raisonner la production et l'utilisation de l'herbe

Abstract : A computerized simulation constitutes an efficient tool for the forecast of the effects of pasture management methods on the availability of grass. In this paper, a simulation model is presented that will be available soon on the Web. This model for a rational production and utilization of grass has two main objects : i) to represent in an integrated and dynamic way the growth of grass in leys (including leys with legumes) or in multi-specific permanent pastures, the model being thus a training basis, and ii) to assist in the setting-up of regional data bases. The inputs concern the mineral nutrition, the type of vegetation, the water reserve, and the daily weather data. The model gives the amount of standing grass with its digestibility and protein content. Illustrations are given to show the performances of the model, especially as regards the differences among types of vegetation, and the effects of the management methods on growth and on the harvested bio-mass.
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Michel Duru, Pablo Cruz, Guillaume Martin, Jean Pierre Theau, Marie-Hélène Charron, et al.. Herb'sim : un modèle pour raisonner la production et l'utilisation de l'herbe. Fourrages, Association Française pour la Production Fourragère, 2010, 201, pp.37-46. ⟨hal-02664099⟩

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