A diverse crop rotation improves yields and economical parameters
2002
Jossi, W. | Zihlmann, U. | Valenta, A. | Scherrer, C. | Krebs, H. | Dubois, D. | Fried, P.M. (Eidgenoessische Forschungsanstalt fuer Agraroekologie und Landbau, Reckenholz (FAL), Zuerich (Switzerland)) | Malitius, O. | Anken, T. | Sidler, A. | Bergmann, F. (Eidgenoessische Forschungsanstalt fuer Agrarwirtschaft und Landtechnik (FAT), Taenikon (Switzerland))
In the trial «Chaiblen» at Taenikon (Switzerland), the effect on yields and economical parameters of a diverse, a cereal-dominated and a maize-dominated crop rotation was examined during 27 years. The evaluation of the years of comparison with silage maize and winter wheat in the three crop rotations showed, that a diverse crop rotation with two years of clover grass had a better yield potential and an easier control for weeds and diseases than the rotations mainly based on cereals or maize. On average, maize yielded 19 / less in the maize-dominated rotation and wheat 10 / less in the cereal-dominated rotation than in the diverse crop rotation. Furthermore, earthworm populations showed a clear increase during the two years of meadows in the diverse crop rotation. This was in contrast to the other crop rotations with almost unchanged numbers of earthworms.
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