A biophysical dairy farm model to evaluate rotational grazing management strategies
نویسندگان
چکیده
منابع مشابه
Simulating management strategies: the rotational grazing example
This paper argues in favour of a simulation approach relying on an explicit and rigorous modelling of the management strategy that underlies the farmer s decision-making behaviour. A strategy is defined as a roadmap of intended technical tasks over a management period. It is tied to an overall objective and specifies what to do depending on the situations encountered. An essential feature is it...
متن کاملSimulating rotational grazing management.
Dairy systems predominantly based on rotational grazing are notoriously hard to manage. In order to ensure profitability, this type of production requires quite good organisation, planning, and operating capability on the part of the farmer. A simulation-based decision support system, called SEPATOU, has been developed for this purpose. At the core of the decision support approach lies an expli...
متن کاملOn-Ranch Grazing Strategies: Context for the Rotational Grazing Dilemma
☆ Research was funded by USDA-NIFA, Rangeland Re 2009-38415-20265); and Western Sustainable Agricultu program (Project Number SW10-073). ⁎ Correspondence: Leslie M. Roche, Department of P University of California, Davis, CA, 95616, USA. E-mail address: [email protected] (L.M. Roche). http://dx.doi.org/10.1016/j.rama.2015.03.011 1550-7424/© 2015 Society for Range Management. Publis Article his...
متن کاملSEPATOU: a Decision Support System for the Management of Rotational Grazing in a Dairy Production
The paper presents the simulator SEPATOU that can reproduce the day-to-day dynamics of two interactive systems: the decision system representing the dairy farmer's management behavior and the biophysical system that encompasses the herbage production, consumption and transformation into milk. The activities to be managed concern the type and amount of conserved feed, where to fertilize and how ...
متن کاملAlternative Rotational Grazing Systems at the Beef Teaching Farm
Fifty-six acres of central Iowa corn land were seeded to bromegrass and divided with high-tensile wire into eight seven-acre plots. This bromegrass was fertilized with 70 pounds of nitrogen each spring and fall, 1987-1990. In 1991 – 1995, the nitrogen was increased to 80 pounds both spring and fall. The plots were stocked with 1.3 cow/calf pairs per acre in 1987-1991 and 1993–1995, but in 1992 ...
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ژورنال
عنوان ژورنال: Agronomie
سال: 2003
ISSN: 0249-5627,1297-9643
DOI: 10.1051/agro:2002071