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| Watson, Christine; Stockdale, Elizabeth. |
| Organic farming faces a number of challenges as it moves forward. It has become a part of the global agricultural industry and therefore organic products are traded not just between farms and regions but between countries and continents. Inevitably, large amounts of nutrients are exported from farms as part of this process. These farms can only continue to produce acceptable quantities of quality food if these nutrients are replaced. Soil has a finite capacity to supply crop nutrients unless they are replenished. The solution is perhaps easiest for nitrogen where biological fixation by legumes can be harnessed to provide the engine for crop production. For other major and micronutrients more consideration needs to be given to acceptable sources for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/23590/1/23590.pdf |
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| Watson, Christine; Stockdale, Elizabeth; Philipps, Lois. |
| The objective of this research review is to draw together all the available relevant research findings in order to develop the knowledge and expertise of organic advisers and thereby to improve soil management practice on organic farms. The Review will concentrate on N, P and K and: 1. Identify all the relevant research undertaken 2. Collate the results of research and summarise the findings of each project 3. Draw on practical experience 4. Analyse the research and summarise the conclusions in a form that is easily accessible by advisers and can be used to help them select appropriate soil analytical techniques and to interpret the results and provide practical advice to farmers on soil management and amendments. |
| Tipo: Other |
Palavras-chave: Soil quality. |
| Ano: 2008 |
URL: http://orgprints.org/5981/1/Res_review_15_soils.doc |
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| Topp, Cairistiona F E; Watson, Christine A; Stockdale, Elizabeth. |
| This report was presented at the UK Organic Research 2002 Conference.Within organic systems, the successful management of nutrients at the field level is crucial for maximising production and minimising the environmental impacts. This requires that the farmer makes the best possible use of nutrients excreted by the grazing or housed livestock. In addition, the farmer must successfully manage the nutrients built-up in the ley phase of the crop rotation over the whole of the arable phase period. To analyse these complex flows, a nutrient budget model has been developed that describes the spatial and temporal flows within the organic farming system. The concept is analogous to treating nutrients as a currency where the flow of nutrients represents a cashflow.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm nutrient management. |
| Ano: 2002 |
URL: http://orgprints.org/8305/1/topp_nutrients_currency.pdf |
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| Padel, Susanne; Tzilivakis, John; Measures, Mark; Stockdale, Elizabeth; Watson, Christine. |
| This report was presented at the UK Organic Research 2002 Conference. OrgPlan is a computer programme aimed at farmers and advisors assisting with the planning of an organic conversion. The programme is divided into technical modules, supported by a standard enterprise database, a report builder and an advisory section. Through the farm profile builder, rotation, cropping and livestock planner, conversion scenarios over several years can be developed and are evaluated for technical and financial feasibility by calculating farm gate budgets for key resources (forage energy and key nutrients) and financial reports (cash flow budget and profit and loss account). The poster illustrates the basic functioning of the software as well as the underlying rationale... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Education; Extension and communication Farm economics. |
| Ano: 2002 |
URL: http://orgprints.org/8388/1/padel_orgplan_conversion_software.pdf |
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