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VEGANIC FARMING AND GARDENING. Veganic farming and gardening is a willingness to balance our existence with the natural world.

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Presentation Transcript
slide2

Veganic farming and gardening is a willingness to balance our existence with the natural world.

the soil microorganisms we try not to disturb with excessive tillage, the birds, butterflies, and insects we do not poison with insecticides, the weeds that are not killed with herbicides, and the animals who are not killed for food.

unlike conventional organic
Unlike Conventional Organic,

Tillage to manage weeds and water

veganic is livestock free and does not use manure as a fertilizer
Veganic is livestock-free and does not use manure as a fertilizer…..

Manure problems: herbicide contamination, nitrate-N leaching into ground water, human pathogens such as ecoli…..

slide5

Veganic Works With Nature to Mimic Natural Plant Eco-Systems:

Reduced tillage – keeping soil covered,

Increased plant diversity,

Regular addition of plant residues.

slide6

Increased plant diversity, regular additions of plant residues, & keeping the soil covered promotes a healthy soil & Rhizospere (root-soil zone of greatest soil foodweb activity)

there are many ways to add plant residues

To create a healthy rhizsphere: add plant residues.

There are many ways to add plant residues…..

alfalfa pellets added to greenhouse tomatoes provide nitrogen phosphorus and potassium
Alfalfa pellets added to greenhouse tomatoes provide nitrogen, phosphorus and potassium
slide9

Sheet composting or mulching – surface application of grass clippings or hay

In a perfect world we would be able to harvest our own hay for veganic growing and wait until mid July to cut, so most grassland birds (and small mammals) have fledged their young. Though less nitrogen and more viable seed in a late cutting, later cut hay holds up better over time - suppressing weeds longer. A late cutting will allow insects to work flowers - at least until the hay is cut.

living mulch
Living Mulch

weeds between crop rows

slide16

Oats and Red Clover

(combinations of grasses and legumes are usually best for weed suppression)

slide19

Annuals –

Buckwheat accumulates phosphorus.

slide20

Rye (Secale) – annual – allelopathic (when tilled into the soil, produces biochemicals that inhibit seed germination and seedling growth).

slide24

Brassicas – Rape – allelopathic:

Inhibits weeds and root rot diseases

slide26

Which organic residue to use?

Depends on soil type, texture and pH, precipitation, and temperature…and cropping system

slide27

composted wood bark – low nitrogen and phosphorus and pH

Soil Pep

5.0

0.2

0.2

0.2

6.3

0.2

0.1

0.1

Clark Fork

composted wood bark/ human waste mix – higher nitrogen and Phosphorus

Ekocompost

5.9

1.0

1.5

0.4

Glacier Gold

5.7

0.5

0.7

0.1

Butte Biologic

6.7

0.8

0.6

0.3

MUSHROOM COMPOST

7.2

1.7

1.7

3.7

GRASS CLIPPINGS

6.6

1.9

0.3

0.8

NUTRIENT CONTENT OF WOODY MATERIALS AND GRASS CLIPPINGS

PH N P K

slide28
Green and succulent plant residues (higher nitrogen) vs. brown and dry residues (lower nitrogen, higher carbon)

High carbon materials can temporarily steal nitrogen from crop plants as microorganisms break them down

slide29

Brown and dry

Green and succulent

Bio chemical pathways of decomposition both residue types break down to humus, but with different microorganisms and nutrient release rates.Green/succulent = fasterBrown/dry = slower

slide31

Organic residues suppressed disease at different levels –alfalfa hay was best.

Suppression of Sclerotinia lettuce drop

slide32

TILLAGE AFFECTS DISEASE SUPPRESSION

Pythium Suppression Decreases With Cultivation Intensity

Lourd and Bouhot, 1987

using living mulches
Using Living Mulches

Case study @ Biodesign Farm

slide37
Seed new cover between rows in spring, recruits from previous season’s living mulch already re-growing
slide47

LM has different nutrients and C:N ratio at different times of the year. High C:N ratio material (greater than 30-50) may cause temporary unavailability of N and P.

slide48
Soil Fertility Summary: Apply plant residue additions throughout the season; mix higher and lower C and N materials
slide49

With careful planning, veganic farming and gardening can be bountiful and productive as well as kind to the other organisms with whom we share the earth

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