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Registros recuperados: 6
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A Guide to Nutrient Budgeting on Organic Farms Organic Eprints
Watson, Christine; Topp, Cairistiona F E; Stockdale, Elizabeth.
The leaflet gives practical guidance on using data and calculating farm-gate nutrient budgets with sections on soil analysis, nutrient inputs, nutrient losses and flows, nitrogen fixation through leys and how inputs and outputs from organic manures and livestock feed can be recorded. It contains one example table of a farm-gate annual nutrient budget for a mixed cattle and arable farm. The tool is specific to organic farming. It was drafted for the UK but has relevance in other countries.
Tipo: Practice tool Palavras-chave: Nutrient turnover; Farm nutrient management.
Ano: 2010 URL: http://orgprints.org/31654/1/a-guide-to-nutrient-budgeting-on-farms.pdf
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Development of software to plan conversion to organic production (OrgPlan) Organic Eprints
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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Laboratory mineral soil analysis and soil mineral management in organic farming Organic Eprints
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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Long-term management of nutrients in organic farming - priciples and practice Organic Eprints
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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Nutrient cycling on organic farms Organic Eprints
Goulding, Keith; Stockdale, Elizabeth; Fortune, Sharon; Watson, Christine.
This paper examines the sustainability of nutrient cycling on organic farms. After a brief consideration of the principles of nutrient cycling in organic agriculture, data on soil P and K indices and farm nutrient budgets is used to assess the integrity of nutrient cycling, including some consideration of losses to the environment. An attempt is made to assess the wider sustainability of organic farming in the context of the limited amount of recycling possible.
Tipo: Journal paper Palavras-chave: Nutrient turnover; Soil quality.
Ano: 2000 URL: http://orgprints.org/8053/2/Goulding_Orgprints_8053.pdf
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Utilising the concept of nutrients as a currency within organic farming system Organic Eprints
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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