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Organic Gardening.  Rodale’s  The organic gardener’s bible 

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Presentation on theme: "Organic Gardening.  Rodale’s  The organic gardener’s bible "— Presentation transcript:

1 Organic Gardening

2  Rodale’s  The organic gardener’s bible  http://www.rodaleinstitute.org/ http://www.rodaleinstitute.org/

3 National Organic Program Developed national organic standards and established an organic certification program http://www.ams.usda.gov/AMSv1.0/nop

4 National Organic Program Organic crops are raised without most conventional pesticides petroleum-based fertilizers sewage sludge-based fertilizers

5 National Organic Program Prohibits GMOs As a general rule, natural substances are allowed Synthetic substances prohibited

6 Does Natural Mean Organic? Natural and organic are not interchangeable Free-range, hormone-free, and natural don't mean “organic”

7 Certification Accredited by USDA-accredited certifying agents The information an applicant must submit organic system plan substances used record keeping

8 Organic Materials Review Institute (OMRI) National nonprofit organization that determines which products are allowed for use in organic production OMRI products http://www.omri.org/

9 Crop Scheduling  Burpee  http://www.burpee.com/gygg/growingCal endarWithZipCode.jsp?catid=1000&_reques tid=647487 http://www.burpee.com/gygg/growingCal endarWithZipCode.jsp?catid=1000&_reques tid=647487  Southeastern States  http://www.thegrower.com/south-east- vegetable-guide/pdf/ http://www.thegrower.com/south-east- vegetable-guide/pdf/  Clemson  http://www.clemson.edu/extension/hgic/pl ants/vegetables/gardening/hgic1256.html http://www.clemson.edu/extension/hgic/pl ants/vegetables/gardening/hgic1256.html

10 Log Gardening  Hugelkultur  Bury logs in a mound  Retain moisture  Decomposition provides  Nutrients  Aeration  Boosts microorganisms

11 Heirloom Plants  Open-pollinated  Grown in an “earlier era”  Before 1951, before hybridization became popular  Better flavor

12 Cover Crop  http://www.clemson.edu/sustainableag/I P024_covercrop.pdf http://www.clemson.edu/sustainableag/I P024_covercrop.pdf

13 Cover Crop Catch Crop  Reduce nutrient leaching

14 Cover Crop Improve soil  Increases organic matter in soil  Improves soil structure  Increases microbial activity

15 Cover Crop Nature’s fertilizers  Nitrogen production from legumes  Clover, beans, peas, vetch

16 Cover Crop Rooting can aerate soil  Blue lupine a biological plow in compacted soils

17 Cover Crop Weed suppression  Smother weeds  Allelopathic effects  Inhibit or slow growth of weeds by releasing natural toxins, or allelochemicals  Small grains (rye), sorghum, sudangrass

18 Companion Planting Certain combinations have synergistic effects  Improve growth  Prevent pests  Attract beneficials

19 Companion Planting  Rose and garlic  Tomatoes and cabbage  Corn and beans

20 Crop Rotation  Don’t grow the same crop in the same soil year after year

21 Crop Rotation  The longer the rotation, the better the results  4-year rotation: Corn, soybeans, oats, alfalfa  Break up insect and disease life cycles  Reduce weeds  Improve soil nutrition

22 Crop Rotation  Iowa State University  Marsden Farm rotation experiment started in 2003  The longer rotations produced better yields  Reduced fertilizer/herbicides up to 88%  http://opinionator.blogs.nytimes.com/201 2/10/19/a-simple-fix-for- food/?_php=true&_type=blogs&_php=tru e&_type=blogs&_r=1 http://opinionator.blogs.nytimes.com/201 2/10/19/a-simple-fix-for- food/?_php=true&_type=blogs&_php=tru e&_type=blogs&_r=1

23 Organic v. Conventional  Standford study suggests no health benefit  However, do recognize reduced exposure to synthetic pesticides, growth hormones and GMO  http://med.stanford.edu/ism/2012/septe mber/organic.html http://med.stanford.edu/ism/2012/septe mber/organic.html

24  http://gothamgreens.com/our-farm/

25  http://brightfarms.com/s/#!/retail_partner s

26 Vegetable Gardening  Minimum of six hours of sunlight  Best with eight to ten hours  Leafy crops, like lettuce, are more tolerant of shade

27 Three Sister’s Garden  Sweet corn planted first  Green beans planted a week later  Climb the corn stalks  Beans are legumes  Fix nitrogen

28 Three Sister’s Garden  Squash planted a week later between the corn and beans to shade out weeds

29 Square Foot Gardening  Grid pattern to conserve space  Often raised beds  http://timssquarefootgarden.com http://timssquarefootgarden.com

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36 Organic Gardening Compost  Yard and food wastes make up approximately 30% of the waste stream in the United States

37 Compost  Transforming organic matter into soil-like material  Invertebrates (insects and earthworms) and microorganisms (bacteria and fungi)

38 Compost Improves  Aeration  Water retention  Increase microbes

39 Compost  Fast or active composting done in 2 to 6 weeks

40 Carbon-to-Nitrogen(C:N)  Bacteria and fungi digest carbon as an energy source and ingest nitrogen for protein synthesis  Carbon, the "food"  Nitrogen, the digestive enzymes

41 Carbon-to-Nitrogen(C:N)  Brown  Carbon  Green  Nitrogen

42 Carbon-to-Nitrogen(C:N)  30:1 (carbon to nitrogen) (Clemson)  30 pounds of carbon for every 1 pound of nitrogen  Another source reports 4 parts brown to 1 part green

43 Carbon-to-Nitrogen(C:N)  Too much carbon, turns cold  Too much nitrogen, stinks (ammonia gas)

44 Carbon-to-Nitrogen(C:N)  Carbon are “browns”  Leaves  Dried grass clippings  Straw  Sawdust (moderation)  Nitrogen are “greens”  Fresh grass clippings  Fresh manure  Kitchen scraps (fruit, vegetables, coffee grounds, tea bags)

45 Materials to NOT Compost  Meat  Attract scavengers  Ashes from grill  Dog and cat feces  Disease risk  And it stinks

46 Surface Area  Decomposition takes place when particle surfaces are in contact with air  Chopping, shredding, mowing, or breaking up the material  Increased surface area increases decomposition  And heat

47 Aeration  Decomposition consumes oxygen  Aerobic decomposition  Anaerobic decomposition occurs with low oxygen  Stinks  Turn pile frequently  Pitchfork

48 Moisture  Moisture content of 40-60 percent  Below 40%, microbial activity slows  Above 60%, anaerobic decomposition

49 Temperature  Microorganisms generate heat as they decompose organic material  90F to 140F is ideal  Activity slows down if too low or too high

50 Vermicomposting  Worm composting  Redworms  50F to 70F

51 Vermicomposting  Worms transform food wastes into nutrient- rich "castings“  http://www.unclejimswormfarm.com http://www.unclejimswormfarm.com

52 Vermicomposting  Box or bin along with "bedding" of shredded cardboard and/or paper moistened to about 75% water content

53 Vermicomposting  Consume four to six pounds of food scraps per week  About four to six months, the worms will have converted all of the bedding into "castings"

54 Compost Tea  Soaking bag of compost in a bucket of water for an hour  Water soluble nutrients and beneficial microorganisms leach out  Boost microorganisms in soil

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60  http://europeangarden.com/aerobin400. aspx http://europeangarden.com/aerobin400. aspx

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122  http://afristarfoundation.org/educational- resources/ http://afristarfoundation.org/educational- resources/

123  http://www.latimes.com/news/science/la -sci-gmo-food-safety-studies- 20121025,0,2357100.story http://www.latimes.com/news/science/la -sci-gmo-food-safety-studies- 20121025,0,2357100.story


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