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Self-reseeding annual legumes as living mulches and green manures |
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Alternative cropping systems based on the use of self-reseeding annual legumes have the potential to be adopted with success in low input farming systems and organic farming systems in a Mediterranean environment as shown in the following diagram.
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Cropping pattern comparison between a conventional cropping system wheat-sunflower rotation, and the same cropping system with subclover (Trifolium subterraneum L.) as living mulch in the wheat and as green manure for the following sunflower. At the bottom precipitation and temperature regime in Viterbo (Central Italy). |
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Wheat/subclover-sunflower rotation |
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Wheat/subclover intercropping in the winter |
Wheat/subclover intercropping before harvesting |
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Wheat/subclover straw after harvesting in the summer |
Subclover re-established in the fall |
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Subclover green manuring in the spring |
Sunflower planted after subclover green manuring |
