ORGANIC GARDENING INTRODUCTION - DUKE FARMS SPRING 2012 EVE SPRINGWOOD MINSON Community Garden Coordinator and Instructor
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ORGANIC GARDENING INTRODUCTION DUKE FARMS SPRING 2012 EVE SPRINGWOOD MINSON Community Garden Coordinator and Instructor
ORGANIC GARDENING PRACTICES INCLUDE: •PLANNING: Practical seasonal planning for the greatest enjoyment from your landscape, as well as 3-4 seasons of food production. •DESIGNING: Well thought-out, ecologically-based design of your home property, community garden plot or growing area. •BEING CREATIVE: Being creative and green in your growing practices: reusing, rethinking, recycling, re-imagining how to do things. •LEARNING: Taking advantage of learning opportunities of all kinds - classes, people, experiences, watching Nature and connecting with what nature does on it’s own. •HANDS-ON MAKING and DOING: Sustainable cultural practices in your garden make all the difference.
WHAT IS ORGANIC GARDENING? Organic gardening is a process that promotes and enhances biodiversity, natural biological cycles and soil biological activity that restore, maintain and enhance ecological harmony. . It is also the conscious design and maintenance of agriculturally productive ecosystems which have the diversity, stability and resilience of natural ecosystems.
HOWEVER, STRICTLY SPEAKING, organic gardening practices are feeding the soil though decaying organic matter and utilizing natural cycles and safe products for disease and pest control to sustainably grow food and other useful plants.
ELEMENTS WE ARE MOST CONCERNED ABOUT IN AN ORGANIC APPROACH TO GARDENING: •SOILS: Building and maintaining healthy living soils – SOIL FOOD WEB •PLANTS: Growing healthy, strong resilient plants •TOXIN FREE: Growing plants using natural substances •GO NATURAL: Using natural fertilizers like manures, fish emulsion, composts and compost teas •WEEDS: natural weed management •PESTS: Non-toxic pest management •DISEASES: Non-toxic disease management •YOUR THINKING…Also includes a sustainable philosophical approach
IMPORTANT THINGS TO REMEMBER TO MAKE A HAPPY GARDEN Sun and wind exposure – site the gardens or space well Critters: keep out with fencing and monitor for damage Water: conserve ,collect,/save, mulch, water properly Season Extenders: get more out of your gardening year Create Diversity so that lots can thrive here! You are not alone… Put the garden to bed in the Fall and prepare for Spring properly
The SOIL FOOD WEB is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. As organisms decompose complex materials, or consume other organisms, nutrients are converted from one form to another, and are made available to plants and to other soil organisms. All plants – grass, trees, shrubs, agricultural crops – depend on this sort of food. We can enhance this process through the careful cultivation of soils and feeding them properly and wisely.
GROWING SOILS WHICH ARE ALIVE ENCOURAGES THE FOLLOWING: • SUPPORT for the soil food web (microbiological activity) • CONTRIBUTES MAJOR AND MINOR NUTRIENTS required for healthy plants – re-mineralize your soils! It’s more than just N-P-K • IMPROVED TILTH AND SOIL STRUCTURE – crumbly and nice to work • IMPROVED WATER RETENTION. More water soaks into the soil and can be used by crops over time…doesn’t just percolate out or sit on top of the soil. • SLOW RELEASE OF NUTRIENTS over a period of time feeding plants longer
•ASSISTING THE MINERALIZATION PROCESSES (converting insoluble minerals into plant usable forms) through fungal and bacterial associations through amendments • INCREASE PEST AND DISEASE RESISTANCE in PLANTS AND IN THE SOILS AS WELL • WATER QUALITY IS PROTECTED – filtered, cleaned and goes back into the water table under your feet. • STRONG HEALTHY PLANTS are the result. • GOOD TASTE OR TERROIR – Flavorful, nutrient dense sweet vegetables and beautiful flowers.
TO MAKE HEALTHY SOIL ADD: •Well aged manure or well broken down compost •Composted ground leaves (leaf mold) •MINERALS: greensand, rock phosphate, etc. •Organic fertilizers: sources and mixes can vary •Humus •Seaweed-kelp-fish blends (liquid or granular) •Mulch: straw, hay, chopped leaves, bark mulch, etc. but NOT red-dyed chipped up palettes!!
COMPOST TEA and LIQUID FERTILIZERS LIKE FISH EMULSION Compost tea is easily made by soaking or steeping compost in water. The resulting compost tea is used for either a foliar application (sprayed on the leaves) or applied to the soil. • Increases plant growth • Provides nutrients to plants and soil • Provides beneficial organisms • Helps to suppress diseases • Replaces toxic garden chemicals •Use common materials to boost soil nutrients and plant growth
SOIL PH: Average: 6.0 – 7.0 (Neutral) ACIDIC: Below 6.0 ALKALINE: Above 7.0 PLANTS THAT CAN TOLERATE ACID CONDITIONS: Blueberries, strawberries, tomatoes PLANTS THAT CAN TOLERATE ALKALINE CONDITIONS: yams, okra, mushrooms, and peppers SOIL TEST, EVALUATE, CONDITION AND ADJUST
ABOVE THE GROUND
OTHER GOOD ORGANIC GARDENING PRACTICES INCLUDE: •PROPER PLANTING AND MAINTENANCE •WEEDING: Don’t wait until it’s a jungle! •CROP ROTATION FROM YEAR TO YEAR (moving plant families to other areas of the garden). A garden journal can help you keep track from year to year. •SCOUTING PLANTS REGULARLY FOR INSECTS AND DISEASE •PLANT FOR POLLINATORS and natural enemies aka beneficial insects which will help keep down pest populations •GOOD NUTRIENT MANAGEMENT: Feed your plants
PROPER PLANTING: •The right time: not too cold, not too warm / plants have their range just like us. Know when to plant. Check the catalog •The right depth: not too high or too deep •Distance from one another: make sure you know what your plants need and how big they will get. Give them space •Sun exposure: all day for almost everything •Enough nutrients: feed regularly •Long term maintenance: pruning, disbudding, harvesting, hilling, watering = tender loving care
COVER CROPS ARE TILLED INTO THE SOIL TO BOOST FERTILITY • nitrogen-fixing bacteria living around there roots which convert nitrogen from the air to a form that plants can absorb •add organic material to your soil that rots down •make the soil easier to work. •help the soil hold water and nutrients for easy absorption •have deep root structure that improves soil aeration and when the deep roots decay improve the soil structure. •make better soils
NON- LEGUMES LEGUMES Clovers Rye Hairy Vetch Oats Field Peas Wheat Forage Annual Medic Turnips Oilseed Alfalfa Radish Soybean Sudangrass Buckwheat
WEEDING and MAINTENANCE
•HOEING WITH GOOD SHARP HOES! Makes all the difference. •FOLLOW UP WITH LAYING DOWN ORGANIC MULCHES (shredded and composted leaves, straw, mulch hay, shredded bark) •USING BLACK PLASTIC and/or BIODEGRADABLE PLASTIC MULCH on beds to hold back weed growth: good or not so good? •ROTOTILLING – sometimes but not too much!
MANAGING PESTS AND DISEASES
ORGANIC PEST MANAGEMENT •Enhance natural enemies (predatory insects) •Use Basic IPM Techniques to start •Scout your plants and learn your insects •Use Rutgers Co-op Extension for positive identification •Don’t put off management – usually they won’t just go away •Use Row Covers to protect plants •Companion Plants Help (some) •Use Chemicals with Low Toxicity that Target Specific Insects: Safer’s Soap, BT, Neem Oil, Monterey Garden Spray •Choose resistant cultivars when possible
INTEGRATED PEST MANAGEMENT - an ecological approach with a main goal of significantly reducing or eliminating the use of pesticides while at the same time managing pest populations at an acceptable level These methods are performed in three stages: prevention, observation, and intervention. PRINCIPLES: -Acceptable pest levels -Cultural Practices -Identify Pests and Monitoring -Mechanical Controls like hand picking -Biological Controls -Responsible organically approved pesticide use
PLANT FOR POLLINATORS AND BENEFICIAL INSECTS •Plant plenty of nectar- and pollen-rich flowers. Use as many plants native to your region as possible. Native plants have evolved closely with native insects -Try to put in flowers with a range of shapes and sizes. Most annuals and flowering herbs are very attractive to pollinators -Include a variety of flowers that bloom throughout the season. By doing so, you will accommodate different pollinators' preferences and provide a sequence of pollen and nectar sources throughout different life cycle stages. -Provide water. Pollinators such as butterflies will gather and sip at shallow pools, mud puddles, and bird baths -Avoid using toxic pesticides. Many are harmful to pollinators as well as pests.
COMMON VEGETABLE INSECTS •CABBAGE WHITES OR CABBAGE BUTTERFLIES LAY EGGS WHICH TURN INTO LOOPERS (caterpillars which eat the plants). •FLEA BEETLES: shotholes •JAPANESE BEETLES: chomp chomp chomp! •CUKE BEETLES: rip tear and transmit disease •SQUASH BUGS: •SLUGS: big holes •TOMATO HORNWORMS: goodbye tomato leaves, stems, etc •LEAF MINERS: light white galleries in leaves •POTATO AND BEAN BEETLES
SOME STEPS FOR BASIC INSECT IDENTIFICATION AND CONTROL •INSPECT ALL YOUR PLANTS before bringing them into the garden. • If you see aphids or tiny spider mites, rinse the leaves thoroughly before bringing them to the garden. • Be sure to check the undersides of leaves for insect eggs. •Take responsibility to avoid introducing new insect problems to •the garden at large • Bring your plant or leaves to Rutgers Cooperative Extension for an exact identification or ask the Garden Coordinator for help.
BECOME A SLEUTH… •MOST HEALTHY MATURE PLANTS CAN TAKE SOME INSECT DAMAGE; •WHEN YOU SPOT A PEST, INVESTIGATE FURTHER. •HOW SERIOUS IS THE DAMAGE? •DO YOU REALLY NEED TO DO ANYTHING AT ALL? •ASK YOUR NEIGHBORS; CHECK OUT SOME OF THE RESOURCES IN THE GARDENERS HANDBOOK ONLINE •HAND PICK AND DESTROY BAD INSECTS WITHOUT SPRAYING FIRST. •KNOCK LARGE INSECTS SUCH AS POTATO BEETLE, TOMATO HORNWORMS, CUCUMBER BEETLES, SQUASH BUGS INTO A CONTAINER OF SOAPY WATER. •ENCOURAGE BENEFICIAL INSECTS.
•COMPANION PLANTING MAY HELP. Certain plants may deter certain insects. Some gardeners have found that when they plant marigolds the whiteflies vanish. Some plants attract pests away from crops, while others seem to discourage them entirely. •TRAP PLANTS. This involves planting sacrificial plants before you plant your main crop, to deliberately lure pests away from your vegetables. Once they have been infested, you remove the plant and destroy it and the bugs. •PHYSICAL TRAPS. Beer attracts and drowns slugs. Potatoes impaled on sticks and buried 3 inches down collect wireworms. Pheromone traps are tricky and should be avoided, as they tend to attract more of the insect than they catch. Yellow sticky traps can be effective for insects like flea beetles, but be sure to place them deep amongst the foliage of the plant you are trying to protect.
•PHYSICAL BARRIERS. Floating row covers made of spunbound polyester can help reduce insect damage on young plants in the cucumber/squash/melon family, though they must be removed when the plants flower to allow for pollination. Place row covers over bamboo or wire hoops and secure with wire tacks or stones. Paper collars will deter cutworms; pantyhose wrapped around squash vines can keep the squash vine borers away. •DIATOMACEOUS EARTH can be effective against a number of pests, but it only works when dry and must be reapplied after rainfall. Don’t use it on a windy day, and be sure to protect your eyes and lungs when applying
ORGANIC PESTICIDES Read the label and use the most appropriate organic control! None of these preparations are good for humans to ingest. Wear gloves, long sleeves, and spray when it’s not windy. It is important to match the pesticide to the pest (and to its particular life stage) and to follow the application directions exactly. Remember, the goal is to kill the bad insects and preserve the good insects; even the mildest pesticide may have an effect on good insects, so use as sparingly as possible. If you do not know anything about using organic pest controls please speak to the Garden Coordinator before you do anything, or go to Rutgers Cooperative Extension for advice. It is important to make sure you use a product that is effective on the problem pest, otherwise you are wasting time and money.
•INSECTICIDAL SOAPS exhibit low toxicity and must come into contact with pests in order to be effective. Use against slow-moving soft-bodied insects, such as aphids, whiteflies, spider mites, etc. •NEEM OIL is relatively safe for mammals and effective on many different sorts of leaf-eaters. It biodegrades in a week or less and persists in the soil for up to about two weeks.. Don’t use on beans. •BT Bacillus Thuringiensis – A bacteria based insecticide which kills only the target pest…used for caterpillars. •PYRETHRIN. Derived from pyrethrum daisies, this is a very effective, though indiscriminate, killer of insects, which works on all life stages. It kills good insects as well as bad, and is also not so great for fish. However, it degrades rapidly in the sun (4 hours). Do not apply just before a rainstorm. A product of last resort, please apply only very specifically, and according to the directions •ROTENONE. Although an organic pesticide, this is just too toxic, particularly to fish, to recommend. Please don’t use. It may also be implicated in Parkinson’s Disease.
PREVENTING DISEASE IN YOUR GARDEN •Choose disease resistant varieties when possible - this information is usually available in seed catalogs and on various websites. •Don’t overcrowd plants - air circulation is necessary to prevent disease. •The soil shouldn’t be too wet or too dry if you can control it. When possible keep foliage dry and water at the base of the plant. •Prune leaves or stems that look suspect and destroy cuttings. Don’t put them in the compost. Take them home and dispose of them in the trash to prevent spread of disease.
•Wash hands before working with plants. •Clean tools - disinfect from time to time with 1 part bleach or vinegar (safer) or alcohol to 9 parts water •Clean pots, seedling trays and flats before reusing them - 1 part bleach to 9 parts water. •Nutritional problems, pH deficiencies or excesses of certain micro- or macro-nutrients in the soil can look like disease. •Temperature extremes can make a plant appear diseased when it isn’t. Also mechanical damage such as disturbing or killing roots makes plant appear diseased.
http://www.organicgardening.com/video-center
DESIGN
COMPONENTS: •BERRIES BERRIES (Raspberries, Blueberries, Strawberries, Currants, Gooseberries…) •VEGETABLES: VEGETABLES: all kinds •HERBS: HERBS: Culinary and Medicinal •FLOWERS: FLOWERS: Edibles, Beautifuls ,Compatibles and Beneficials •INSECTARY INSECTARY garden: for Pollinators and Beneficial Species
•SEASONAL SEASONAL PROTECTION such as cold frames, or tunnels •WATER WATER •SMALL SMALL NICHES AND CREVICES FOR BENEFICIAL AMPHIBIANS AND REPTILES: Use cracked pots, rocks, holes, etc. •Personalized Personalized Items: ART, BIRD BATHS, SCULPTURE, WATER FEATURES, FOCAL POINTS, QUIRKY CRAFTS, etc.
ANNUAL PLANTS: Culinary herbs: Parsley, Basils, Dill, Summer Savory, Lemon Grass, Fennel, Marjoram, Cilantro, Marjoram, Rosemary, Thyme, Veggies: Peas, Beans, Tomatoes, Peppers, Cauliflower, Cabbage, Potatoes, Squash, Corn, Beans, Brussels, Eggplant, Greens, Melons, Celery, Asian Greens and more Flowers: Zinnias, Calendula, Pansy and Violas, Sunflowers, Snapdragons, Morning Glory, Marigolds, Sweet Pea, Nasturtium, etc.
SOME BASIC STRUCTURES
MORE INFORMATION
SOURCES FOR ORGANIC SEED: catalogs are chockfull of growing information •The Cooks Garden, PO Box 535, Londonderry, VT 05148 (800) 457-9703 www.cooksgarden.com •Garden City Seeds, 778 Highway 93N, #3 Hamilton MT 59840 (406) 961-4837 www.gardencityseeds.com •Johnny Selected Seeds, RR1 Box 2580, Foss Hill Rd, Albion, ME 04910 www.johnnyseeds.com •Seeds of Change, PO Box 15700, Santa Fe, NM 87507, (no phone calls) www.seedsofchange.com •Territorial Seed Co. PO Box 158, Cottage Grove, OR 97424 (541) 942-9547 www.territorial-seed.com •FEDCO SEED, HIGH MOWING SEED, SEED SAVERS,
GREAT MAGAZINES and their Websites: •MOTHER EARTH NEWS •ORGANIC GARDENING •URBAN FARM •PERMACULTURE •HOBBY FARM •BIBLIOGRAPHY IN THE DF GARDEN HANDBOOK online at www.dukefarms.org
THANKS FOR COMING!! BE THE BEE!!
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