Nendel, C. and Venezia, A. and Piro, F. and et al, . (2012) The performance of the EU-Rotate_N model in predicting the growth and nitrogen uptake of rotations of field vegetable crops in a Mediterranean environment. Journal of Agricultural Science. pp. 1-18.
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Abstract
The EU-Rotate_N model was developed as a tool to estimate the growth and nitrogen (N) uptake of vegetable crop rotations across a wide range of European climatic conditions and to assess the economic and environmental consequences of alternative management strategies. The model has been evaluated under field conditions in Germany and Norway and under greenhouse conditions in China. The present work evaluated the model using Italian data to evaluate its performance in awarm and dry environment. Data were collected fromfour 2-year field rotations, which included lettuce (Lactuca sativa L.), fennel (Foeniculum vulgare Mill.), spinach (Spinacia oleracea L.), broccoli (Brassica oleracea L. var. italica Plenck) and white cabbage (B. oleracea convar. capitata var. alba L.); each rotation used three different rates of N fertilizer (average recommended N1, assumed farmer’s practice N2=N1+0·3×N1 and a zero control N0). Although the model was not calibrated prior to running the simulations, results for above-ground dry matter biomass, crop residue biomass, crop N concentration and crop N uptake were promising. However, soil mineral N predictions to 0·6m depth were poor. The main problem with the prediction of the test variables was the poor ability to captureNmineralization in some autumn periods and an inappropriate parameterization of fennel. In conclusion, the model performed well, giving results comparable with other bio-physical process simulation models, but for more complex crop rotations. The model has the potential for application in Mediterranean environments for field vegetable production.
| Item Type: | Article |
|---|---|
| Additional Information: | The authors acknowledge funding fromthe EU Quality of Life Programme which supported the development of the EU-Rotate_N simulation model within the project QLK5-2002-01100 co-ordinated by C. Rahn at Warwick University. C. Nendel was additionally funded by ZALF budget funds. |
| Uncontrolled Keywords: | Vegetable Production, Mediterranean Environment, |
| Author Affiliation: | Leibniz Centre for Agricultural Landscape Research, Institute of Landscape Systems Analysis, Eberswalder Straße 84, 15374 Müncheberg, Germany |
| Subjects: | Plant Production |
| Divisions: | Other Crops |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 24 Aug 2012 07:15 |
| Last Modified: | 24 Aug 2012 07:16 |
| Official URL: | http://dx.doi.org/10.1017/S0021859612000688 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7508 |
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