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| Huguenin-Elie, Olivier; Nyfeler, Daniel; Suter, Matthias; Frossard, Emmanuel; Lüscher, Andreas. |
| High plant species richness has been shown to positively influence grassland biomass production. In mixtures containing two forage grass and two forage legume species we quantified the diversity-productivity effect and the nitrogen economy of the swards across a broad range of species proportions. Positive diversity-productivity effects resulted in higher yield (up to +35%) of the four-species grass-clover-mixtures than the highest yielding monoculture (transgressive overyielding). The diversity-productivity effect depended on the species proportion in the mixture and was maximal in well balanced mixtures with a clover proportion of 40 – 60%. Transgressive overyielding was significant over a fairly wide range of clover proportions. Well balanced... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2009 |
URL: http://orgprints.org/14416/1/HugueninElie_14416.pdf |
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| Suter, Matthias; Siegrist-Maag, Sandra; Luescher, Andreas. |
| Senecio jacobaea is a poisonous weed in grasslands of various countries (e.g. Great Britain, New Zealand, Central European states), and the further spread of the species into farmland must be prevented. Due to strong restrictions of curative measures, the prevention of S. jacobaea’s spread is of primary importance for organic farming. To assess the influence of management practice and site conditions on the occurrence of S. jacobaea, we conducted an on-farm survey in the northern and central part of Switzerland. Botanical assessments were carried out on grassland plots with S. jacobaea occurrence and on neighbour plots without S. jacobaea. For these plots, we analysed the soil nutrients and the details of management practice such as type and intensity of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2007 |
URL: http://orgprints.org/9262/1/9262_Suter_Vortrag.pdf |
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