photo credit: mingchu zhang, afes-uaf turning that...
TRANSCRIPT
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Making Decomposition Work for You:
Turning that cold pile of goo into something you can use on your
garden! Jodie Anderson – AFTSC
13 January 2015
Photo Credit: Mingchu Zhang, AFES-UAF
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Presentation Goals. . .
• Why compost in Alaska? • Composting basics • Methods of successful composting in Alaska • Model vessel for home or small-scale composting
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Why Compost in Alaska?
Total seafood harvested in Alaska: > 2,000,000 metric tons annually Total byproduct produced in Alaska: > 1,000,000 metric tons annually (Bechtel and Johnson 2004)
Cardboard in Dillingham: 13.61 metric tons annually from one fish processor
Organic Waste is Wasted!
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Local Carbon Sources in Rural Alaska - wood chips in Haines
Photo Credit for All: Jeff Smeenk, Cooperative Extension Service
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General Composting: Part One - The Components
Rynk, R., et al. 1992. On-Farm composting handbook. Natural Resource, Agriculture, and Engineering Service #54 Cornell Cooperative Extension. p14. Ithaca, New York.
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General Composting: Part Two – The Process
FIGURE 12.33 Physical and chemical changes during the composting process.
Brady, N. and Weil, R. 2008. The nature and properties of soils. (14th ed) Pearson/Prentice Hall, Upper Saddle River, New Jersey. p 536.
Stage 1- Mesophilic Available food sources metabolized quickly results in rapid temperature increase
Stage 2 - Thermophilic Aerobic microbes take over and metabolize cellulose and more resistant starches - mixing required to increase oxygen levels
Stage 3 - Curing Mesophilic organisms repopulate the pile as the temperature drops to ambient conditions - beneficial products form
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Microbiological View of Composting: Microbial Succession During Composting
Coyne, M. 1999. Composting. In Soil Microbiology: An Exploratory Approach. Delmar Publishers, Albany, NY. pp 405-412.
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Composting With a Twist: Using Materials We Were Told NOT to Use
Glanville, T. 1999. Composting dead livestock: a new solution to an old problem. Iowa State University - University Extension Sustainable Agriculture #8. 12pp. Ames, Iowa.
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Methods of Home Composting in Alaska
Soldotna compost in an old plastic drum set on two sawhorses with casters for easy turning
Bethel compost of veggie scraps, fish, chicken manure, and house garbage turned with a small tractor
Kasilof compost in a kiddie pool
Galena compost of house garbage (anything organic), garden scraps, and chicken house cleaning turned the old fashioned way
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Methods of Community-Scale Composting in Alaska
Collected organic waste and wood chips
Gustavus Community Compost
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Low-tech Composting Works on the Farm
Pile developed 06 Nov 09
Photo Credit for All: Jeff Smeenk, Cooperative Extension Service
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12
It isn’t too cold to compost in Alaska!
Photo Credit for All: Jeff Smeenk, Cooperative Extension Service
82⁰ F
118⁰ F
130⁰ F
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Model Vessel for Home or Small-scale Composting
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References
Glanville, T. 1999. Composting dead livestock: a new solution to an old problem. Iowa State University - University Extension Sustainable Agriculture #8. 12pp. Ames, Iowa.
Cornell Waste Management Institute. 2002. Natural rendering: composting livestock mortality and butcher waste. Department of Crop & Soil Sciences Cornell University. 12pp. Ithaca, New York.
Brady, N. and Weil, R. 2008. The nature and properties of soils. (14th ed) Pearson/Prentice Hall, Upper Saddle River, New Jersey. p 536.
Rynk, R., van de Kamp, M., Willson, G., Singley, M., Richard, T., Kolega, J., Gouin, F., Laliberty, L., Kay, D., Murphy, D., Hoitink, H., and Brinton, W. 1992. On-Farm composting handbook. Natural Resource, Agriculture, and Engineering Service #54 Cornell Cooperative Extension. p14. Ithaca, New York.
Coyne, M. 1999. Composting. In Soil Microbiology: An Exploratory Approach. Delmar Publishers, Albany, NY. pp 405-412.