Brewing Aerated Compost Research Matters/Sonja Peters...Brewing Aerated Compost Tea: ... March 12 08-00364 Using a different worm casting products ... Date Lab report Variation in recipe. Compost tea experiments

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  • Brewing Aerated Brewing Aerated Compost Tea:Compost Tea:

    Factors that Impact Microbial Factors that Impact Microbial Composition in Compost TeaComposition in Compost Tea

    Sonja PetersSonja PetersCropHealth Advising & ResearchCropHealth Advising & Research

    Kelowna, BCKelowna, BC

  • Dr. Elaine R. Ingham

    Soil Food Web, Inc. Corvallis, Oregon

    http://www.soilfoodweb.com/

  • 1) What is compost tea?1) What is compost tea?

    Non-aerated compost teaNon-aerated compost tea- compost extract- compost extract- compost slurry- compost slurry- compost steepage- compost steepage

    Aerated compost teaAerated compost tea

  • HowHowAerated Compost Tea

  • 2) Why use compost tea? 2) Why use compost tea?

    A cup of hot tea = A cup of good healthA cup of hot tea = A cup of good healthTea and Health BenefitsTea and Health Benefits

  • Components of soil foodwebComponents of soil foodwebFruit crop ecology and management, Michigan State University, 2002Fruit crop ecology and management, Michigan State University, 2002

  • Disease Suppression and Plant HealthDisease Suppression and Plant Health

    Damping offDamping off

    Botrytis mouldBotrytis mould

    powdery mildewpowdery mildew

    2) Why use compost tea?

  • 2) Why use compost tea?

  • 2) Why use compost tea?

  • Picture parts of a Bob bitti

    Brewing Machine

  • ApplicationApplication

    Foliar spraysFoliar sprays Soil drenchesSoil drenches Seed TreatmentSeed Treatment AerationAeration

  • Comparative Brewing Trails

  • Why did we do this testing?Why did we do this testing?

    Not a lot of research done by scientists.

    A lot of research conducted by the compost tea brewing companies and the results are secret.

    We think compost tea is a useful product.

  • Presentation ObjectivePresentation Objective

    At the end of this presentation you will be At the end of this presentation you will be familiar some of the factors that impact familiar some of the factors that impact microbial numbers in compost tea. microbial numbers in compost tea.

    You will be able to take the knowledge You will be able to take the knowledge and develop a recipe to brew compost tea and develop a recipe to brew compost tea on your own. on your own.

  • The standard recipeThe standard recipe BrewersBrewers

    Bobs Bitti 5 US gallons, 4 brewersBobs Bitti 5 US gallons, 4 brewersK.I.S. 5 US gallons, 1 brewerK.I.S. 5 US gallons, 1 brewer

    ProcedureProcedure 15 liters tap water, actively aerated for 1 hour, additives15 liters tap water, actively aerated for 1 hour, additives Actively aerated for 21 hours (compost out after 5 hours) Actively aerated for 21 hours (compost out after 5 hours) Samples to SFI Canada (analysis 48 to 72 hours later) Samples to SFI Canada (analysis 48 to 72 hours later)

    Recipe Recipe (from Bobs Brewers)(from Bobs Brewers) Composted yard waste 485 grams (Kelowna landfill)Composted yard waste 485 grams (Kelowna landfill) Wormcastings 285 grams (Nurturing Nature Organics) Wormcastings 285 grams (Nurturing Nature Organics) Humic acid 30 ml (extract, Tecologic Products, AB) Humic acid 30 ml (extract, Tecologic Products, AB) Seaweed 30 ml ( Seaweed 30 ml (Ascophyllum n.Ascophyllum n., Logic Alliance, NS), Logic Alliance, NS) Fish fertiliser 15 ml (North Atlantic fish, NS) Fish fertiliser 15 ml (North Atlantic fish, NS)

  • Standard RecipeStandard Recipe

    Bobs BrewersBobs Brewers

    http://www.nettime.com/bobsbrew/products.htmlhttp://www.nettime.com/bobsbrew/products.html

    Seattle, WashingtonSeattle, Washington

    http://www.nettime.com/bobsbrew/products.html

  • Compost tea experimentsCompost tea experimentsTesting at Soil FoodWeb Inc., Vulcan Alberta, 2006Testing at Soil FoodWeb Inc., Vulcan Alberta, 2006

    Varying duration of compost activation08-00182Apr 3

    Varying length of brewing08-00190Apr 7

    Varying amounts of RootShield08-00252May 29

    Ingredients but no compost08-00166Feb 13

    Compost with one ingredient only08-00170Feb 27

    Compost alone or worm castings alone08-00171Mar 06

    Varying duration of water aeration08-00174Mar 20

    Using different composts08-00179Mar 27

    Varying amounts of fish fertiliser08-00163Feb 06

    Varying amounts of seaweed08-00161Jan 23

    Varying amounts of humic acid08-00160Jan 16

    Variation in recipeLab reportDate

  • Compost tea experimentsCompost tea experimentsTesting at Soil FoodWeb Inc., Vulcan Alberta, 2007Testing at Soil FoodWeb Inc., Vulcan Alberta, 2007

    Compost activation with baby oatmeal 08-00373April 9

    Varying temperature08-00376April 16

    Fermentation Varying ratios08-00381April 24

    Using different water sources08-00455Nov 19

    Using a different worm casting products08-00364March 12

    Using new (2007) worm castings08-00360March 5

    Using old (2006) worm castings08-00358Feb. 26

    Variation in recipeLab reportDate

  • Compost tea experimentsCompost tea experimentsTesting at Soil FoodWeb Inc., Vulcan Alberta, Testing at Soil FoodWeb Inc., Vulcan Alberta,

    2008 and 20092008 and 2009

    Using different water sources08-001378Feb. 2

    Varying amounts of Yucca08-001369Jan. 26

    Activation with Yucca08-001387Feb. 16

    Varying amounts of juice and pulp08-001080March 10

    Home made brewers08-001078March 3

    Brewer size08-000464Feb. 25

    Variation in recipeLab reportDate

  • ResultsResults

    1) Quality control1) Quality control 2) Impact of compost activation2) Impact of compost activation 3) Impact of humic acid3) Impact of humic acid 4) Impact of seaweed4) Impact of seaweed 5) Impact of fish fertiliser5) Impact of fish fertiliser 6) Impact of brewing duration6) Impact of brewing duration 7) Impact of a home made brewers7) Impact of a home made brewers

  • ResultsResults

    1) Quality control1) Quality control 2) Impact of compost activation2) Impact of compost activation 3) Impact of humic acid3) Impact of humic acid 4) Impact of seaweed4) Impact of seaweed 5) Impact of fish fertiliser5) Impact of fish fertiliser 6) Impact of brewing duration6) Impact of brewing duration 7) Impact of a home made brewers7) Impact of a home made brewers

  • ---------44691213 Feb0831277239678427 Feb05751386315870406 Mar4575363164425627220 Mar43164413863281152027 Mar

    4263

    831

    8318575

    Amoeba(# / ml)

    4

    4

    2

    Ciliate(# / ml)

    57536

    5753

    460613863

    Flagellate(# / ml)

    2757603 Apr

    3471686 Feb

    251203223 Jan20755216 Jan

    Fungi(total, ppm)

    Bacteria(total, ppm)

    Date

    Microbial content of compost teaMicrobial content of compost teaprepared with K.I.S. brewer and standard recipeprepared with K.I.S. brewer and standard recipe

    Results from Soil FoodWeb Canada, Jan to May 2006Results from Soil FoodWeb Canada, Jan to May 2006

  • ResultsResults

    1) Quality control1) Quality control 2) Impact of compost activation2) Impact of compost activation 3) Impact of humic acid3) Impact of humic acid 4) Impact of seaweed4) Impact of seaweed 5) Impact of fish fertiliser5) Impact of fish fertiliser 6) Impact of brewing duration6) Impact of brewing duration 7) Impact of a home made brewers7) Impact of a home made brewers

  • 0

    50

    100

    150

    200

    250

    Target 0 tbsp 6 tbsp 24 tbsp 48 tbsp

    Tota

    l fun

    gui b

    iom

    ass

    in p

    pmPre-activation of compostPre-activation of compost

    Impact on fungi, results from Soil FoodWeb Canada, Feb 2006Impact on fungi, results from Soil FoodWeb Canada, Feb 2006Amount of baby oatmeal, activation 4 days, Amount of baby oatmeal, activation 4 days, Bobs Brewer 15 litersBobs Brewer 15 liters

  • ResultsResults

    1) Quality control1) Quality control 2) Impact of compost activation2) Impact of compost activation 3) Impact of humic acid3) Impact of humic acid 4) Impact of seaweed4) Impact of seaweed 5) Impact of fish fertiliser5) Impact of fish fertiliser 6) Impact of brewing duration6) Impact of brewing duration 7) Impact of a home made brewers7) Impact of a home made brewers

  • Seedlings grown on [humic acid]-treated Seedlings grown on [humic acid]-treated germination papers had higher dry root germination papers had higher dry root weights than those grown on [deionized weights than those grown on [deionized

    water] or [nutrient control] -treated water] or [nutrient control] -treated germination papers.germination papers.

    Article: Effect of Humic Acids on Growth of Article: Effect of Humic Acids on Growth of Annual Ornamental Seedling Plugs Annual Ornamental Seedling Plugs

    Evans and Li. 2003. HortTechnologyEvans and Li. 2003. HortTechnology

    About Humic Acid

  • 0

    50

    100

    Target No humic Humic 15 ml Humic 30 ml Humic 120 ml

    Tota

    l fun

    gi b

    iom

    ass

    in p

    pm

    Humic acid in compost teaHumic acid in compost teaImpact on total fungi, results from Soil FoodWeb Canada, Jan 2006Impact on total fungi, results from Soil FoodWeb Canada, Jan 2006

    Tecologic Multi-dynamic Humic extract in Bobs Brewer 15 litersTecologic Multi-dynamic Humic extract in Bobs Brewer 15 liters

    Standard

  • 3570

    575

    1386

    831

    Amoeba(# / ml)

    0

    0

    0

    0

    Ciliates(# / ml)

    5753

    5753

    5753

    5753

    Flagellate(# / ml)

    159344120 ml

    72896030