Theresa Lam
Market Gardener
Lonicera Farm
Organic Vegetable Gardening
 Seed and plant selection, garden design, companion
planting, beneficial insects, amendments, crop rotations,
irrigation, mulching, weed suppression, harvesting and
seed saving.
USDA Certified Organic
 Promotes and enhances biodiversity, biological cycles
and soil biological activity.
 It is based on minimal use of off-farm inputs and on
management practices that restore, maintain and
enhance ecological harmony.
 Methods are used to minimize pollution to air, soil and
water.
http://www.nal.usda.gov/afsic/pubs/ofp/ofp.shtml
http://webcache.googleusercontent.com/search?q=cache:http://afsic.nal.usda.gov/sustainable-agriculture-definitions-and-terms-related-
terms&num=1&strip=0&vwsrc=0
Why start from seed?
 Greater
selection!
 Organic
choice
 Grow
LOTS of
plants
 $ave
money
 Its fun!
Seed and Plant Selection
Seed and Plant Selection
Baker Creek:
Watermelon radish/Red Meat
Baker Creek:Pusa Gulabi radish
Baker Creek:
Chinese Green Luobo Radish
Baker Creek:
Japanese Minowase Daikon
Baker Creek: Pusa Asita Carrot
Microgreens
http://www.johnnyseeds.com/c-48-micro-greens.aspx
Garlic!
Starting Seeds Indoors
•Indoors:
•20-row tray
•Then transplant
when true leaves
appear
For any plants to
get a head start.
When is the right time to start
seeds?
Starting Seeds
Soil Blocks
Soil Block Tools
Seed Starter
 Organic Mechanics
Vermont
Compost
Rice Hulls
Lighting
•Shop lights
•Wide spectrum
bulbs
Wide spectrum bulbs @ 16
hours/day
http://tinyurl.com/znrzqa3
Seeding
 Follow Directions on seed packets.
 Depth and distance is important.
 Hardening-off
 Harden off gradually, so that seedlings become accustomed to
strong sunlight, cool nights and less-frequent watering over a
7-10 day period.
 On a mild day, start with 2-3 hours of sun in a sheltered
location. Then increase exposure every day.
 Protect seedlings from strong sun, wind, hard rain and cool
temperatures.
Choosing a site
South facing
Choosing a site
South or east facing
slope
Well drained soil
Choosing a site
South facing
Well drained soil
Level or slightly
slopes toward the sun
Terrace the rows with
hills
Permanent
raised beds
Fencing
Preparing the soil in a new
garden
 Turn or remove grass (or cover in fall)
 Build permanent raised beds
 Add organic matter, rest
 Soil test – adjust pH & nutrients
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
Soil Food Web
 One teaspoon of healthy soil may contain a
billion bacteria, several yards of fungal hyphae,
thousands of protozoa and dozens of nematodes.
 In one acre of topsoil, the top 4" may contain:
 2000 lb of bacteria
 2400 lb of fungi
 900 lb of algae
 900 lb of earthworms
 133 lb of protozoa.
Organism Build Healthy Soil
 Plants feed bacteria and fungi through root exudates
 Bacteria and fungi solubilize mineral nutrients from rocks,
sand, silt and clay.
 Bacteria and fungi are eaten by protozoa, nematodes,
microarthropods, and earthworms (predators), contribute
to the organic matter with their wastes, & the end of their
life cycle.
 Plant-available, soluble nutrients are released
 Soil regeneration occurs with carbon capture and
sequestration
Organic vs. Synthetic Fertilizers
 Organic is slower acting but safe for soil
organisms.
 Well-made compost is ideal but it takes time to
repopulate eroded, non-living soils (aka dirt)
with life.
$642,000 federal grant to
investigate how soil erosion
may be threatening climate
mitigation policies
http://iowaenvironmentalfocus.org/2010/11/18/ui-engineer-gets-grant-to-study-iowa-soil-erosion/
Effects of Ideal Healthy Soil
 Soil structure improved; roots grow deeper
 Water holding increased; don’t need to irrigate
 Balanced nutrients in plant material, healthy
plants, not susceptible to diseases
 No need to rotate crops
 Healthier, nutrient dense food
http://www.nofamass.org/sites/default/files/scaudio/Specific%20Approaches%20NOFA%202014.p
Soil Compositon
25%
water
25%
AIR
45%
mineral
5%
organic
Transition to Organic
 For soils in transition (per soil test)
 Phosphorus: Rock Phosphate
 Nitrogen: Blood meal
 Potassium (K) Greensand, Sul-Po-Mag
 Micronutrients fish fertilizer / kelp meal
 Aged cow, horse manure (herbicide-
free), aged chicken litter, rabbit litter
 Aerate mechanically until organisms
take over
http://rci.rutgers.edu/~soilslab/FertProducts/fertproddisplay.php
Sul-Po-Mag
 Langbeinite (not Epsom salt)
 It contains 22% Sulfur, 22%
Potash and 11% Magnesium,
without the salinity of Epsom
salt.
 Sul-Po-Mag breaks down
slowly so plants will get a
regular supply of these
nutrients, and it is completely
soluble in water.
 Add with organic matter to
help stablize pH
Greensand
 Slow release of Potassium
 Locally mined
Maintaining the Soil Structure
http://www.motherearthnews.com/organic-gardening/breaking-down-the-broadfork-zbcz1601.aspx
The broadfork traces
its origins back to
the grelinette, a tool
invented in France
by André Grelinin
the 1960s.
Building organic matter
Compost
Always keep the ground
covered
Cover crops
Leaves, especially oak leaves
Building organic matter
Cover crops
Legumes: ground peas, alfalfa, vetch,
oats, barley, winter wheat, buckwheat
Rye is for farmers!
Clover
http://en.wikipedia.org/wiki/Trifolium_repens
Clover is your Friend!
This is wood sorrel
tp://covercrops.cals.cornell.edu/
Legumes
 Fix Nitrogen
 Can be turned into the
soil to provide carbon
organic matter to the
soil.
 Nitrogen is channeled
to the fruit during pod
formation.
http://www.fedcoseeds.com/ogs/microbes.htm
Cover crop mix: field peas, oats, clover
Design your garden:
Growveg.com planner
 Enter garden dimensions
 Choose plants from list &
enter
 Gives spacing and amount
 Straight rows for irrigation
 Seeding & harvest dates
 Interplant with companion
and plants that attract
pollinators
 Use vertical plantings
https://www.growveg.com/gardenplanner/gardenplanner.html#
Crop Rotations
 Set up garden plots for seasonal rotations among
plant families
 Reduce pest problems
 Aid in fertility for next seasons crops
Crop Rotations
 Legumes—Fix N beans, peas, soybeans,
peanuts
 Cucurbits—High N feeders cucumbers, squash
 Roots & Shoots—brassicas & Root crops—
Root crops require low N
 Solanaceae—High N Feeders
Crop Rotations
 Vegetable families follow 4 year rotations on 4
sections of land
 Legume vegetables may add N to the soil so
follow with…
 Solanacea or cucurbits which require soils with
high nutrient levels so follow with…
 Root crops which need low N levels
Mulch & Cover Crop in
Vegetable Gardens
Water conservation and to block weeds
 Mulch: Salt hay, clover, chopped leaves
 Intensive planting/Interplant
 Green mulch
 Green manures
 Over wintering with cover crops: oats, etc.
Intensive Planting & Interplant
 Mix shallow and deep rooted plants
 Tomatoes & carrots
 Cabbage & radish
 Beans & corn
 Tall climbers & ground covers
 Cucumbers & pumpkins
 Legumes (provide N) and squash
http://www.richsoil.com/lawn-care.jsp
Our Goal
Pest & Disease Control
 Scouting & removal, spraying soap solution
 Crop Rotation
 Companion planting
 Attract beneficial insects
 Keep well irrigated and stress free
Companion Planting
 Calendula, Mexican tarragon, basil, nasturtiums, deter
pests
 Sweet Yellow Clover, Anise hyssop for bees
 Daises, chamomile, and phacelia attract pollinators
 Marigolds deter aphids
 Comfrey is good to use as a mulch or in compost or to
make compost tea.
http://www.my-garden-school.com/10-flowers-to-grow-with-vegetables/
Attracting Pollinators
 Beeline Pollinator Mix
 Sunflowers
 Thyme
 Catnip
 Squash, pumpkins,
gourds
http://www.highmowingseeds.com/blog/our-top-5-flowers-for-pollinators/
USDA
Bee Basics
http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5306468.pdf
Beneficial Insects
 Allow for a
GREAT diversity
of insects in the
garden!
 Rutgers Fact
Sheet FS 295
 UC Davis Natural
Enemies Gallery
http://snyderfarm.rutgers.edu/pdfs/beneficial-insects-home-garden-fs295.pdf
http://www.ipm.ucdavis.edu/PMG/NE/index.html
Beneficial Insects
 Ground Beetle
Beneficial Insects
 Ladybug larvae
Beneficial Insects
http://snyderfarm.rutgers.edu/pdfs/beneficial-insects-home-garden-fs295.pdf
Beneficial
Insects
 Aphidius colemani
Beneficial Insects
 Green Lacewing
http://www.ipm.ucdavis.edu/PMG/NE/green_l
acewing.html
Irrigation
Harvesting Seeds
 'Dry' seeds include beans, okra, peppers, basil and
members of the Onion and Carrot Families.
 Wet' seeds are found in such plants as tomatoes,
eggplants and many squashes. Cleaning wet seeds
requires washing to clean the seeds and to separate
them from the surrounding pulp.
 In addition, in some cases wet seeds (such as
tomatoes) are best fermented for several days
Seed Savers Exchange
 How to assess seed maturity
 Short term seed storage
 Webinars on seed saving topics
 Much more information!
Take Away for Organic Gardens
 Compost—strengthens the soil food web; grow
stronger pest and disease resistant plants
 Mulch & green manures to conserve water &
block weeds
 No till gardening to conserve organic matter.
 Beneficial plants to attract pollinators,
predators of pests, plants that deter pests.
Thank you for joining us!
 Leave email address for links to presentation

Organic vegetable gardening

Editor's Notes

  • #69 Till in spring or during growing season. Wait 3 weeks. Test soil.
  • #70 Till in spring or during growing season. Wait 3 weeks. Test soil.
  • #71 Go to Rutgers Gardens, the soccer fields
  • #75 Legume nodules Clover
  • #89 Mow high Grow grass good for our climate Water only with signs of stress Use organic fertilizer when needed