Organic horticulture
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Overview
Organic horticulture is the science and art of growing fruits, vegetables, flowers, or ornamental plants by following the essential principles of organic agriculture in soil building and conservation, pest management, and heritage-species preservation.
The Latin words hortus (garden plant) and cultura (culture) together form horticulture, classically defined as the culture or growing of garden plants. Horticulture is also sometimes defined simply as “agriculture minus the plough (or plow).” Instead of the plough, horticulture makes use of human labour and gardener’s cultivation tools, or of small machine tools like rotary tillers.
General
Mulches, cover crops, compost, manures, and ground-rock mineral supplements are soil-building mainstays. Through care and good soil condition, it is hoped that insect, fungal,or other problems that sometimes plague plants can be avoided. However, pheromone traps, insecticidal soap sprays, and other pest-control methods available to organic farmers are also sometimes utilized by organic horticulturists.
Horticulture involves five areas of study. These areas are floriculture (includes production and marketing of floral crops), landscape horticulture (includes production, marketing and maintenance of landscape plants), olericulture (includes production and marketing of vegetables), pomology (includes production and marketing of fruits), and postharvest physiology (involves maintaining quality and preventing spoilage of horticultural crops). All of these can be, and sometimes are, pursued according to the principles of organic cultivation.
Organic horticulture (or organic gardening) is based on knowledge and techniques gathered over thousands of years. In general terms, organic horticulture involves natural processes, often taking place over extended periods of time, and a holistic approach - while chemical-based horticulture focuses on immediate, isolated effects and reductionist strategies.
Organic gardening systems
There are a number of formal organic gardening and farming systems that prescribe specific techniques. They tend to be more specific than, and fit within, general organic standards. Biodynamic farming is an approach based on the esoteric teachings of Rudolf Steiner. The Japanese farmer and writer Masanobu Fukuoka invented a no-till system for small-scale grain production that he called Natural Farming. French intensive and biointensive methods and SPIN Farming (Small Plot INtensive) are all small scale gardening techniques.
A garden is more than just a means of providing food, it is a model of what is possible in your community - everyone could have a garden of some kind (container, growing box, raised bed) and produce healthy, nutritious organic food - promoting a more sustainable way of living that would encourage their local economy - a farmers market, a place to pass on gardening experience, and a sharing of bounty. A simple 4' x 8' (32 square feet) raised bed garden based on the principles of bio-intensive planting and square foot gardening uses fewer nutrients and less water, and could keep a family, or community, supplied with an abundance of healthy, nutritious organic greens, while promoting a more sustainable way of living.
Differing approaches to pest control are equally notable. In chemical horticulture, a specific insecticide may be applied to quickly kill off a particular insect pest. Chemical controls can dramatically reduce pest populations in the short term, yet by unavoidably killing (or starving) natural predator insects and animals, cause an increase in the pest population in the long term. Repeated use of insecticides and herbicides and other pesticides also encourages rapid natural selection of resistant insects, plants and other organisms, necessitating increased use, or requiring new, more powerful controls.
In contrast, organic horticulture tends to tolerate some pest populations while taking the long view. Organic pest control involves the cumulative effect of many techniques, including:
• Allowing for an acceptable level of pest damage
• Encouraging predatory beneficial insects to flourish and eat pests
• Encouraging beneficial microorganisms
• Careful plant selection, choosing disease-resistant varieties
• Planting companion crops that discourage or divert pests
• Using row covers to protect crop plants during pest migration periods
• Rotating crops to different locations from year to year to interrupt pest reproduction cycles
• Using insect traps to monitor and control insect populations
Each of these techniques also provides other benefits — soil protection and improvement, fertilization, pollination, water Conservation, season extension, etc. — and these benefits are both complementary and cumulative in overall effect on site health.
Effective organic pest control requires a thorough understanding of pest life cycles and interactions.
Organic pest control is not synonymous, but shares some concepts with integrated pest management.
See also
References
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Further reading
- Eliot Coleman. The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener. Chelsea Green, 1995. ISBN 0875967531
- Karan Davis Cutler, Barbara W. Ellis, and David Cavagnaro. The Complete Vegetable & Herb Gardener : A Guide to Growing Your Garden Organically. Wiley, 1997. ISBN 0028620054
- Tanya L.K. Denckla. The Gardener's A-Z Guide to Growing Organic Food. Storey, 2004. ISBN 1580173705
- Barbara W. Ellis and Fern Marshall Bradley, eds. The Organic Gardener's Handbook of Natural Insect and Disease Control: A Complete Problem-Solving Guide to Keeping Your Garden and Yard Healthy Without Chemicals. Rodale, 1996. ISBN 0875967531
- Anna Kruger, ed. Rodale's Illustrated Encyclopedia of Organic Gardening. DK, 2005. ISBN 0756609321
- Edward C. Smith. The Vegetable Gardener's Bible. Storey, 2006. ISBN 1580172121
- Steve Solomon. Gardening When It Counts: Growing Food in Hard Times. New Society, 2006. ISBN 086571553X
- Paul Stamets. Mycelium Running: How Mushrooms Can Help Save the World. Ten Speed, 2005. ISBN 1580085792
- HRH The Prince of Wales and Stephanie Donaldson. The Elements of Organic Gardening. Kales, 2007. ISBN 0967007690
External links
Australia
- Canberra Organic Growers Society, Organic gardening in Canberra
- City Farm Perth, Organic Community Garden, Perth
Canada
- City Farmer, Organic gardening in Vancouver
- Greening Your Garden - Native plants, Caring for soil, Watering, Pest Control
United Kingdom
- Garden Organic, the UK's leading organic horticulture charity
- The Soil Association, the UK's leading environmental charity promoting sustainable, organic farming
United States
- The Center for Agroecology & Sustainable Food Systems at UC Santa Cruz, California
- Garden for the Environment, San Francisco, California
- Alemany Farm -- growing organic food and providing green jobs for low-income communities in San Francisco, California
- The Center for Urban Agriculture at Fairview Gardens, Goleta, California
- The Edible Schoolyard at MLK Jr. Middle School, Berkeley, California
- University of New Hampshire Organic Garden Club, New Hampshire
- Rutgers University Cook College Organic Garden Club, New Jersey
- Maine Organic Farmers and Gardeners Association, Unity, Maine
- American Community Gardening Association, Philadelphia, Pennsylvania
- Coalition of Organic Landscapers, Seattle, Washington
- Society for Organic Urban Land Care, Victoria, British Columbia
- Ecological Landscaping Association, Framingham, Massachusettsda:Økologisk havedyrkning
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
