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| Müller, Dr. Torsten; Magid, Dr. Jakob; Jensen, Dr. Lars Stoumann; Nielsen, Dr. Niels Erik; Thorup-Kristensen, Dr. Kristian. |
| During the last years, an increasing number of stockless farms in Europe converted to organic farming practice without re-establishing a livestock. Due to the lack of animal manure as a nutrient input, the relocation and the external input of nutrients is limited in those organic cropping systems. The introduction of a one-year green manure fallow in a 4-year crop rotation, including clover-grass mixtures as a green manure crop is the classical strategy to solve at least some of the problems related to the missing livestock. The development of new crop rotations, including an extended use of catch crops and annual green manure (legumes) may be another possibility avoiding the economical loss during the fallow year. Modelling of the C and N turnover in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Production systems; Crop combinations and interactions; Vegetables; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/127/1/0830.pdf |
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| Petersen, Anders; Bruun, Sander; Jensen, Dr. Lars Stoumann; Hansen, Dr. Søren. |
| Daisy is a well-tested deterministic, dynamic soil-plant-atmosphere model, capable of simulating water balance, nitrogen balance and losses, development in soil organic matter and crop growth and production in crop rotations under alternate management strategies. Originally it was developed as a system of single models describing each process involved, but recently it has been developed into a framework, which can be used for implementation of several different models of each of the different processes. Thus, for example a number of different models for simulating soil water dynamics can be chosen depending on the purpose of the simulation and the availability of data for parameterisation. The sub-model simulating soil organic matter is still a fixed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Production systems; Crop combinations and interactions; Soil biology. |
| Ano: 2001 |
URL: http://orgprints.org/1699/1/DAISY_Poster_Reims.pdf |
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