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Evaluation of the STICS crop model within the INTERCROP EU project to simulate pea-barley intercropping systems.

Launay, doctor Marie; Brisson, doctor Nadine; Corre-Hellou, doctor Guenaëlle; Dibet, Audrey; Crozat, doctor Yves; Hauggard-Nielsen, doctor Henrik; Kasyanova, doctor Elena; Monti, doctor Michele and Dahlmann, Christopher (2006) Evaluation of the STICS crop model within the INTERCROP EU project to simulate pea-barley intercropping systems. Poster at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

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Summary

This work is devoted to the evaluation and utilization of the STICS intercrop/sole crop model taking into account the European environmental variability within an organic farming framework. The model ability to simulate intercropping systems was evaluated on the network of the INTERCROP EU project experiments. We first realized the difficulty to simulate relevant absolute production values in spite of a satisfactorily phase of parameterisation in conventional farming experiments. We attributed most of the discrepancies between simulations and measurements to the non accounting of biotic stresses. However, the relative values and in particular the Land Equivalent Ratios draw to the same results for simulation and observa-tion, i.e. the global advantage of intercropping compared to sole crops. Those conclusions caused us to think that the use of the model to test technical strategies was worthwhile. Among the different strategies we tested with the model, one showed that intercropping was very interesting in term of stability, and an other showed that the inter-row factor was a better driver factor for choosing density design than global density.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Subjects: Crop husbandry > Crop combinations and interactions
Research affiliation: France > INRA - Institut National de la Recherche Agronomique
International Conferences > 2006: Joint Organic Congress > Theme 4: Crop systems and soils
Deposited By: Launay, doctor Marie
ID Code:7531
Deposited On:09 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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