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| Burgt, G.J.H.M.. |
| NDICEA presents an integrated assessment of the question of nitrogen availability for organic crops. During the growing season, the model compares net available nitrogen from manures, crop residues, green manures, additional fertilisers and the soil, with the crop specific demand on a daily basis. The release of nitrogen from different types of organic matter in the soil is calculated, considering soil type, temperature, rainfall and losses due to leaching and denitrification. The NDICEA model has been developed, tested and used during more than 15 years by the Louis Bolk Instituut in the Netherlands. The interface is user-friendly, with complex calculations in the background. This offers an easy way to obtain a reliable indication of the nitrogen and... |
| Tipo: Practice tool |
Palavras-chave: Crop combinations and interactions; Nutrient turnover; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/31675/6/NDICEA_Cover.png |
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| Koopmans, Chris; Rietberg, P.I.; Burgt, G.J.H.M.. |
| The NDICEA model was used to simulate and evaluate field trials, designed to improve organic cropping system by using reduced tillage and green manures. The model can help to assess whether nitrogen shortages are likely to occur, and to evaluate the effect of green manure and reduced tillage conditions on nitrogen dynamics and soil organic matter pools. To investigate the effects of tillage and nutrient management on N cycling and soil organic matter pools using the model NDICEA for different experimental sites across Europe. In addition adaptations to the NDICEA model are proposed to cover the effects of reduced tillage in these computer simulations. |
| Tipo: Report |
Palavras-chave: Soil quality; Soil. |
| Ano: 2014 |
URL: http://orgprints.org/28776/1/3001.pdf |
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| Rietberg, P.I.; Burgt, G.J.H.M.; Tein, Berit; Luik, Anne; Sans, F. Xavier. |
| Abstract The TILMAN-project aims to develop robust and sustainable arable crop production systems via the introduction of reduced tillage techniques combined with a strategic use of green manures in organic crop rotations, while maintaining and improving soil quality and crop productivity parameters. The adoption of reduced tillage and/or green manures strongly affects nitrogen quantity and availability during the vegetative period and throughout the crop rotation. Specifically, changing soil and water conditions may affect the availability pattern of nitrogen, notably in spring. We present aggregated data of several long- and medium-term European experimental field studies in which green manures including cut-and-carry-fertilizers, and reduced tillage... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil; Environmental aspects; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23985/1/23985%20WP5%20ISOFAR%20in%20format_MM.pdf |
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| Burgt, G.J.H.M.; Bus, M.C.. |
| Increasingly strict legislation about fertilizer inputs and developing organic regulations are a strong stimulation to optimize the internal nutrient dynamics of organic arable farms. In the project “PlantyOrganic” , initialized by Biowad and realized at SPNA location Kollumerwaard, a challenging arable system is developed and tested: 100% internal nitrogen supply without input of nutrients from outside. In this report the design of the rotation and fertilizer scheme is presented and discussed, and the starting conditions in spring 2012 are documented. The NDICEA nitrogen model is used to explore the nitrogen dynamics. It is concluded that a 100% farm-own nitrogen supply can be achieved with good production levels. The 2012 results gave no reason to... |
| Tipo: Report |
Palavras-chave: Nutrient turnover; Air and water emissions; Soil; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/22839/1/2012-048%20LbP%20Planty%20Organic%20Design%20and%20results%202012.pdf |
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