Strategies for organic research

This report was presented at the UK Organic Research 2002 Conference. In this paper three suggestions are offered for increasing the value of organic farming research

Agricultural systems research

Contents: Just what do we mean by "systems", and how can we understand them? Why is systems research particularly suited to organic agriculture? How do we do it? A way to start Achieving true systems research: a long-range goa

Combining Ethological Thinking and Epidemiological Knowledge to Enhance the Naturalness of Organic Livestock Systems

Organic livestock farming places strong emphasis on conditions that allow animals to exhibit behavioural needs. This involves the provision of a natural environment and, in particular, outdoor conditions and a reliance on natural forages. Such environments also allow animals to be effectively integrated into crop production. However, there are potential disease risks associated with these conditions, with control options being partly limited by restrictions on chemoprophylactic measures. Examples from dairy and poultry production demonstrate how a basic understanding of ethology and a knowledge of disease epidemiology can enhance the welfare of animals whilst satisfying the ecological objectives of organic farming. Existing epidemiological models and published data can be used to examine the potential ensuing health hazards and control possibilities and to suggest alternatives

Self identified research needs of New York organic farmers

A survey of organic farmers in New York State identified problems in need of university research. Weed management was the most frequently mentioned problem by far, identified as significant by two-thirds of the organic farmers. Only a few other problems were listed as significant, including insufficient time for farm work, lack of markets, low prices, and lack of appropriate tools. These were cited by more than a third of the farmers. Drought, insect management, and a lack of a dependable supply of labor were cited by about one-third of the respondents. The survey also examined organic farmers' information sources. They do not use conventional sources of agricultural information, such as the extension service and conventional agricultural media, as much as books, magazines, and newsletters on organic f arming, other organic f armers, and on-farm experiments. Many respondents noted that local extension agents did not know very much about non-chemical solutions to organic production problems. They considered University Extension to be accessible, but not very useful in solving problems specific to organic farming, and had many suggestions to improve Land Grant research in organic agriculture

Agriculture in Britain as a Mature Industrial Society

SUMMARY The post World War II phase of rapidly increasing British agricultural productivity, based upon the substitution of capital for labour, and upon cheap fossil fuels and heavy chemical dressing, is coming to an end. The cost of inputs and the diminishing returns that result from these policies, as well as problems of soil exhaustion and water pollution, signal a change of pattern in British farming. This pattern, it is argued, could produce a variety of benefits, which might include higher productivity per hectare (though not necessarily per worker) greater national and regional self?sufficiency in food, with consequent benefits to the British balance of payments, a net absorption rather than extrusion of labour, and even an improved dietary balance for the nation. RESUME L'agriculture en Grande?Bretagne en tant que société industrielle mure L'ère de !a productivité agricole britannique dans la période postérieure à la deuxième guerre mondiale, dont l'augmentation rapide se fondait sur la substitution de ta main?d'oeuvre par le capital, et sur les combustibles fossiles à bon marché et une lourde façon chimique, tire à sa fin. Le coût des engrais et le rendement décroissant qui résulte de ces mesures, ainsi que les problèmes de l'épuisement du sol et de la pollution de l'eau, signalent une nouvelle forme d'agriculture én Grande?Bretagne. Cette transformation, prétend?on, rapporterait toutes sortes de bénéfices, qui pourraient comporter une augmentation du rendement par hectare (mais pas nécessairement par travailleur), une plus grande mesure d'autonomie nationale et régionale en matière de denrées alimentaires, ce qui entrainerait une amélioration de la balance des paiements britannique, une absorption nette plutôt qu'une extrusion de la main?d'oeuvre, voire même un meilleur équilibre alimentaire pour la nation. RESUMEN La agricultura en Gran Bretaña como sociedad industrial avanzada Brian Johnson y Michael Allanby Estamos asistiendo al final del período que siguió a la Segunda Guerra Mundial, en que no había dejado de aumentarla productividad agrícola de Gran Bretaña, basada en la sustitución del trabajo por el capital, así como en combustibles baratos y en intensa preparación química. El coste de las inversiones y la disminución de los beneficios que resultaron de estas políticas, así como el problema del agotamiento del suelo y de la contaminación del agua, anuncian un cambio de estructura en la agricultura británica. Se quiere que esta nueva estructura produzca toda una serie de beneficios, en el sentido de una productividad mayor por hectárea (aunque no necesariamente por trabajador), mayor independencia nacional y regional en alimentos, con las consiguientes ventajas para la balanza de pagos británica, mejor empleo de la mano de obra e incluso mayor equilibrio dietético para el país

Organic and conventional tomato cropping systems.

Among several alternative agricultural systems have been developed, organic agriculture has deserved increasing interest from. The objective of this paper was comparing both organic (OS) and conventional (CS) tomato cropping systems for varieties Débora and Santa Clara, through an interdisciplinary study. The experiment was set up in a randomized blocks design with six replicates, in a dystrophic Ultisol plots measuring 25 ´ 17 m. Cropping procedures followed by either local conventional or organic growers practices recommendations. Fertilization in the OS was done with organic compost, single superphosphate, dolomitic limes (5L, 60 g, and 60 g per pit), and sprayed twice a week with biofertilizer. Fertilization in the CS was done with 200 g 4-14-8 (NPK) per pit and, after planting, 30 g N, 33 g K and 10.5 g P per pit; from 52 days after planting forth, plants were sprayed once a week with foliar fertilizer. In the CS, a blend of insecticides, fungicides and miticides was sprayed twice a week, after planting. In the OS, extracts of black pepper, garlic, and Eucalyptus; Bordeaux mixture, and biofertilizer, were applied twice a week to control diseases and pests. Tomato spotted wilt was the most important disease in the OS, resulting in smaller plant development, number of flower clusters and yield. In the CS, the disease was kept under control, and the population of thrips, the virus vector, occurred at lower levels than in the OS. Variety Santa Clara presented greater incidence of the viral disease, and for this reason had a poorer performance than 'Débora', especially in the OS. Occurrence of Liriomyza spp. was significantly smaller in the OS, possibly because of the greater frequency of Chrysoperla. The CS had smaller incidence of leaf spots caused by Septoria lycopersici and Xanthomonas vesicatoria. However, early blight and fruit rot caused by Alternaria solani occurred in larger numbers. No differences were observed with regard to the communities of fungi and bacteria in the phylloplane, and to the occurrence of weeds

Natural living – a precondition for animal welfare in organic farming

Results from a four year interdisciplinary project are presented. Animal welfare is discussed in relation to values and aims in organic farming. Based on analyzes of organic standards and other publications from the organic movement, basic “organic values” were defined. In addition, two studies of Swedish organic livestock farmers (one quantitative and one qualitative) were made. Ecocentric ethics was then identified as an ethical position for organic farming. The overall concern in organic farming is to develop sustainable farming systems, although animal welfare is also important. These aims are partly contrary, causing some difficult dilemmas related to animal welfare. The actual welfare situation in organic animal husbandry was scrutinized through a literature study. The criticism regarding bad welfare in organic farming could not be confirmed, although parasitic diseases appear to be a problem. An important finding is that animal welfare is understood differently from what is usual in conventional agriculture. It is interpreted in terms of natural living, which includes the possibility to perform a natural behavior, feed adapted to animal physiology and a natural environment. Problems in organic production should be solved with this in mind

Insect growth regulator effects of azadirachtin and neem oil on survivorship, development and fecundity of Aphis glycines (Hemiptera: Aphididae) and its predator, Harmonia axyridis (Coleoptera: Coccinellidae)

BACKGROUND: Aphis glycines Matsumura, an invasive insect pest in North American soybeans, is fed upon by a key biological control agent, Harmonia axyridis Pallas. Although biological control is preferentially relied upon to suppress insect pests in organic agriculture, approved insecticides, such as neem, are periodically utilized to reduce damaging pest populations. The authors evaluated direct spray treatments of two neem formulations, azadirachtin and neem seed oil, under controlled conditions for effects on survivorship, development time and fecundity in A. glycines and H. axyridis. RESULTS: Both azadirachtin and neem seed oil significantly increased aphid nymphal mortality (80 and 77% respectively) while significantly increasing development time of those surviving to adulthood. First-instar H. axyridis survival to adulthood was also significantly reduced by both neem formulations, while only azadirachtin reduced third-instar survivorship. Azadirachtin increased H. axyridis development time to adult when applied to both instars, while neem oil only increased time to adult when applied to first instar. Neither neem formulation affected the fecundity of either insect. CONCLUSIONS: Results are discussed within the context of future laboratory and field studies aimed at clarifying if neem-derived insecticides can be effectively integrated with biological control for soybean aphid management in organic soybeans

A Pragmatic Assessment of Government Support for Organic Agriculture in Ireland

Drawing on a pragmatic approach, this paper provides an analysis of governmental support for organic farming in Ireland. There are varying levels of encouragement and programmes provided to farmers in their conversion from conventional to organic production, and in their maintenance of organic production. Support policies vary across regions and are linked to European Union legislation, thus it is challenging to document the many types of support in place. This research investigates relevant technical, financial, and policy support available to organic farmers in Ireland. This exploratory study develops an assessment of Ireland within eight key categories of organic agricultural support: leadership, policy, research, technical support, financial support, marketing and promotion, education and information, and future developments. Information and data from the Irish Department of Agriculture, Fisheries and Food (DAFF), the Irish Agriculture and Food Development Authority (Teagasc), and other governmental and semi-governmental agencies were utilized to assess the level of support in each category. Following the pragmatic approach, this assessment provides key findings which allow policymakers, organizations and citizens to better understand the current situation and set a path for the future development of organic farming in Ireland

Balanço e análise da sustentabilidade energética na produção orgânica de hortaliças.

Os insumos e serviços utilizados na produção vegetal representam custo energético. Dependendo desses fatores e das produtividades obtidas, a conversão da produção em energia determinará a eficiência energética do sistema. A agricultura orgânica somente atingirá a missão de preservação ambiental se tiver comprovada sustentabilidade energética. Neste trabalho, objetivou-se caracterizar os balanços energéticos dos cultivos orgânicos e analisar sua sustentabilidade, em comparação aos sistemas convencionais. Monitoraram-se campos de produção de dez culturas, de 1991 a 2000 em Domingos Martins-ES. Os dados do sistema convencional foram obtidos pelas médias dos coeficientes técnicos da região. Quantificaram-se os coeficientes técnicos, convertendo suas grandezas físicas em equivalentes energéticos, expressos em kcal. O sistema orgânico gastou 4.571.159 kcal ha-1 e apresentou 12.696.712 kcal ha-1 de energia inserida na colheita, mostrando balanço médio de 2,78. Esse valor foi similar ao obtido no sistema convencional (1,93). As participações dos componentes nos gastos do sistema orgânico foram embalagem (35,8%), composto orgânico (17,2%), irrigação (12,6%), sementes/mudas (12,4%) e mão-de-obra (11,0%), serviços mecânicos (5,0%) e frete (4,5%). Se os custos com embalagens fossem eliminados, os gastos do sistema orgânico seriam reduzidos para 2.930.113 kcal ha-1, aumentando sua eficiência. A maioria dos cultivos orgânicos pode ser considerada sustentável em transformação de energia, com balanços superiores a 1,00 e produção média diária de 80.421 kcal ha-1 por dia, superior à necessidade mínima de 58.064 kcal ha-1