southern sawg producing and using biodynamic compost
TRANSCRIPT
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Producing and Using
Biodynamic Compost on Your Farm
Southern SAWG Conference
January 16, 2015
Mobile, AL
Mike Smith
Longwood Plantation, LLC.
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Longwood Plantation Facility
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Building
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When We Began and Now
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Aerial Photo of Current Site
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Compost Defined
Composting is the biological process of
breaking down organic residues of plants
and animals into an extremely humus-like
substance by various micro-organisms
including bacteria, fungi and actinomycetes
in the presence of oxygen.
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Benefits of Using Compost
• Improves soil structure, porosity, and bulk density
• Increases moisture infiltration and permeability of heavy soils
• Improves moisture-holding capacity of light soils
• Improves and stabilizes soil pH
• Improves cation exchange capacity (CEC) of soils
• Supplies a variety of macro and micronutrients
• Supplies significant quantities of organic matter
• Supplies beneficial microorganisms to the soil
• Binds and degrades specific pollutants in soil
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Key Factors in Composting
• Aeration – Composting is an aerobic process (meaning
it requires lots of oxygen). Turning is critical to provide
oxygen to compost.
• Nutrient Balance – The ratio of carbon to nitrogen for
successful composting. Must contain 20 to 40 parts
carbon to 1 part nitrogen.
• Moisture Content – Compost pile should be around 60%
after completion of original mixing. Should never drop
below 40%.
• Temperature – The maximum composting rate occurs
when the temperature is between 110° and 150° F.
Temperatures at 131° F for 10 days will kill all parasites,
weed seeds, and disease-causing organisms.
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Methods of Composting
• In-vessel – Typically rotary drum or kiln-type set-up for
continuous processing. High capital investment, usually
municipal or governmental systems. Short compost
cycle.
• Aerated Static piles – High capital investment. Low
labor requirements. Questionable results.
• Turned windrows – Lower capital investment. Lends
itself to custom blends. Lower capacity restraints.
• Biodynamic – Uses biodynamic preparations, intensive
pre-blending, and static pile formation.
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Feedstocks for Composting
Carbon
Cotton Trash – 29
Peanut Hay – 65
Dry Leaves – 60
Hay – 30
Fresh Sawdust – 40
Rye Straw – 82
Yard Waste - 44
Nitrogen
Chicken Manure – 11
Cow Manure – 30
Onions – 18
Horse Manure – 35
Grass Clippings – 12
Coffee Grounds – 20
Cocoa Shells - 22
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Parameters for Finished Compost
Temperature F° 92-94°
Oxygen (O2) Not under 8%
Carbon Dioxide (C O2) Not over 8%
pH 6.5 – 7.0
Ammonia (NH3) <50 ppm
Sulfides (H2S) 0 at any time
Carbon to Nitrogen Ratio 15-20:1
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Methods of Composting at
Longwood Plantation
• ACS – Advanced Composting System.
Based on the Luebke system
• Bio-Dynamic – Based on Rudolph Steiner
principles
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ACS Processing Method
This process combines a balanced recipe with a
scientifically managed composting process,
producing humified compost – a high-value
compost that improves soil fertility, buffers crops
against adverse conditions, and reduces need for
weed and insect suppression. It is based on the
Luebke method, with focus on quality and
consistency of the finished product. This is of
paramount importance in attaining good humus-
based compost which yields positive field results.
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Basic IngredientsBalanced Recipe
Cotton Gin Trash Peat
Chicken
Litter
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Windrow turning with Front Loader
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Compost-a-Gator
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Turning
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Screening
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Bio-Dynamic Method
Bio-Dynamic compost is made based on basic principles first presented by Rudolph Steiner, a noted Austrian
agriculturalist. These principles emphasize the balancing of the holistic development and interrelationship of the
soil, plants, and animals as a closed, self-nourishing system.
The bio-dynamic compost is made from composted cotton gin waste, aged wood meal, green waste, chicken litter, peat humus, granite dust, and biochar, using static windrows approximately 6 feet high and innoculated with
bio-dynamic preparations.
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Bio-Dynamic PreparationsSteiner prescribed nine different preparations which are the cornerstone of biodynamic agriculture, and described how these were to be prepared. The prepared substances used for making the bio-dynamic compost are numbered 502 through 507, and are listed below:
502: Yarrow blossoms (Achillea millefolium) 503: Chamomile blossoms (Matricaria recutita) 504: Stinging nettle (Urtica dioica) 505: Oak bark (Quercus robur) 506: Dandelion flowers (Taraxacum officinale) 507: Valerian flowers (Valeriana officinalis)
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BD Preparations and their Purpose
• Yarrow – Provides trace elements uptake in dilute quantities
• Chamomile – Stabilizes nitrogen (N) in compost and enhances soil life
• Nettle – Stimulates soil health providing plants with individual nutrition components needed
• Oak Bark – Combats plant diseases
• Dandelion – Stimulates relationship between silica and potassium (K)
• Valerian – Stimulates compost for proper phosphorous (P) use by the soil
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Placement of Bio-Dynamic
Preparations in a Pile
Dandelion (506) Yarrow (502)
Nettle (504) Oak Bark (505)
Valerian (507) Chamomile (503)
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Making Bio-Dynamic Compost
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Building the Pile
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Shaping the Pile
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Preparing holes for innoculation
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Placing Preps
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Adding Valarian to Water
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Pouring Valarian into Hole
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Spraying Valarian over Entire Pile
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Hydrating Pile
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Evaluating Finished Compost
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First Production Pile
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1 2 3
45
6
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Compost Applications
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Compost Application Rates
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Different Uses for Compost
• Raised beds and container gardening
• Organic fruit and vegetable gardens
• Tree and plant nurseries
• Lawn care maintenance
• Golf course construction and maintenance
• Tree care and deep root fertilization
• Sports field construction and maintenance
• Gro-Soxx
• Erosion control filter soxx
• Compost extract and tea
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Raised Beds
Organically Yours, Savannah, Ga.
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Raised Beds
Bercegray’s Square Foot Garden
using Mike’s Mix instead of Mel’s Mix
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Raised Beds
Vernon Waters Home
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Raised Beds
• Before After
Hampton Island Old Farm, Riceboro, Ga.
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Raised Beds
10/19/200811/25/2008
11/25/200811/25/2008
Little St. Simon’s Island Garden
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Container Gardening
Shannon’s Garden Vegetables
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Container Nursery
Bald CypressVitex
Pineland Nursery
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Southern Native Plantings
Native Plant Nursery
Oakleaf Hydrangea Apple trees and Paw-paws
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Organic ApplicationsWalker Farm Organic Onions
Seedlings Harvest
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Organic applications
Peterson Garden at
Whitener Plantation
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Lawncare Maintenance
Before After
Palmetto Bluff, Bluffton, SC
Lovett residence, Statesboro, Ga
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Golf Course Construction
Hampton Island Golf Course
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Greens Restoration
Palmetto Dunes Golf Course
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Tree Care and Deep Root Fertilization
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New Baseball Field at Screven County
Sports Field Construction
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Sports Field Restoration
Before After
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Fertilization and Weed Control
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Gro-Soxx
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Lee Family Vegetable Farm
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Erosion Control Filter Soxx
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Compost Extract and Tea
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Types
• Compost tea – Brewed - Contains
additives such as molasses, yeast extract,
fish-based products, kelp, or green plant
tissue. An active process.
• Compost Extract – Extracted – Made from
good compost and water. A passive
process.
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Uses for compost tea
• Fertilization
• Foliar spray
• Drip irrigation
• Compost pile innoculation
• Root injection
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Compost Tea/Extract
Considerations
• High quality, mature compost is essential
• Pure, uncontaminated water is also
important
• Additives are used to extend the life of the
tea to give the bugs something to eat
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Methods of Producing Compost
Tea
• Bucket Fermentation Method– An old passive method which makes an extract.
• Bucket Bubbler Method– Similar to the Bucket Fermentation Method but uses a
pump and air bubbler
• Trough Method– Uses homemade tanks and pumps to re-circulate,
bubble, and aerate the compost tea
• Commercial Tea Brewers– Uses commercial equipment and added food sources,
along with aeration.
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Benefits of Using Compost Tea/Extract
• Reduces risk of diseases
resulting from surface
contact with chemicals
• Cleanses the soil of the
salt build-up
• Boosts soil microbiology
• Reduces inputs over a 3-
year period.
• Is a commitment to the
environment and to future
generations
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Compost Tea/Extract Testimonials
Before After
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