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| Romanyà, Joan; Rovira, Pere. |
| The use of manures and rotation with legumes in organic farming systems does not always guarantee the adequate nutrient supply to crops. We studied post-harvest N availability in a series of Mediterranean semi-arid rain-fed and irrigated organic fields after 18 years of conversion and compared these with conventional fields nearby. In organic irrigated soils the use of legumes and the application of moderate amounts of manures resulted in higher amounts of soil organic C and potentially mineralisable N. In contrast, in organic rain-fed soils that did not incorporate legumes in their rotation and used low amounts of manures, soil organic C and potential mineralisable N were lower. In organic irrigated soils changes in organic matter quality resulted in a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover. |
| Ano: 2008 |
URL: http://orgprints.org/11487/3/Romanya_11487_ed.doc |
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| Baldivieso-Freitas, P.; Blanco-Moreno, José Manuel; Armengot, Laura; Chamorro, Lourdes; Romanyà, Joan; Sans, F. Xavier. |
| Conservation agriculture and organic farming are two alternative strategies that aim to improve soil quality and fertility in arable cropping systems through the deployment of different practices, that are rarely combined. While conservation agriculture practices include reducing tillage intensity and maintaining soil cover all year round to prevent soil erosion, organic farming focuses on nutrient recycling, using farmyard manure and green manure to enhance soil quality. However, these practices are not free from side-effects, such as increasing weed infestation or limited nutrient availability. Therefore it is necessary to explore the sustainability of their combination under local environmental constraints. The objectives of this study were to evaluate... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Crop combinations and interactions Soil biology Cereals; Pulses and oilseeds Composting and manuring Soil tillage Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/32378/1/STILL-17-515R3.pdf |
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