What collection supplies will I need?
Collection materials are relatively inexpensive and read- ily obtainable.
a small wooden box, 12 x 12 x 4 inches deep, prefer-
What collection supplies will I need?
ably made of cedar (photo 1)
steamed white rice
white paper towels, enough to cover the wooden box two to four large rubber bands
a sheet of clear plastic, large enough to completely
cover the wooden box
1⁄4-inch mesh wire screen large enough to completely
cover the wooden box.
How are collection supplies assembled?
Fill the wooden box with 3 inches of steamed rice (photo 2). Cover the box with white paper towel, being careful not to let the towel touch the rice (photo 3). There should be an inch or so of air space between the rice the paper towel. Use rubber bands around the top of the box to secure the paper towel in place.
Cover the top of the box with wire screen (photo 4) to prevent animals from tampering with the rice. Top the wire with a sheet of clear plastic to protect the box from rain, and place it under trees or in another secluded area. The box should not be in direct sunlight.
Partially bury the box in the soil (photo 5). It should be buried at least 2 inches deep for best results.
Cover the box with fallen leaves from the harvest loca- tion (photo 6). Anchor the plastic sheet on all sides with small rocks to prevent it from being dislodged by wind.
Leave the box undisturbed for a minimum of 45 days. After that time, check to see whether the moist rice is covered with white mold. If mold growth is sparse, re-cover the box and wait an additional 23 days before re-checking. If the mold is a color other than white (other colors indicate growth of less effective fungi) or if rain has entered the box, the contents should be discarded and the process repeated.
Culturing the microorganisms
Once the desired microbes have been collected, the next step is to increase their numbers.
What materials are necessary for culturing?
The basic supplies for microbe culturing are
a clean clay pot (hard-fired, glazed, or terra cotta)
a wooden spoon
white paper towels
rubber bands
a large clear bowl, big enough to hold contents of rice
medium waste.
mixture
a small food scale
a straw mat
a shovel
a composting thermometer
raw, granulated brown sugar
wheat mill run* or, if available, mushroom growth
How are the materials assembled to cultivate microbes?
1) Weigh and record the weight of the large bowl.
2) Use the wooden spoon to move the molded rice from
the wooden box into the bowl (photos 7,
. Weigh the filled bowl and calculate the weight of the rice mass by subtracting the weight of the empty bowl from the filled bowl.
3) Gradually add an amount of granulated brown sugar equal to the weight of the rice mass (photo 9). Hand- knead the sugar and rice until the material has the consistency of gooey molasses (photo 10). Protective gloves are suggested.
4) Fill the clean clay pot two-thirds full with the rice/ sugar mixture (photos 11, 12). Cover it with paper towel secured in place with rubber bands (photo 13).
5) Store the pot in a cool area away from direct sunlight for 7 days. This will allow the mixture to ferment. 6) Working in a shaded area (photo 14), add a small
amount of water to the fermented rice mixture in a 1:500 ratio. Then, slowly blend in wheat mill run (or used mushroom medium) until mixture is of semi-moist but not wet consistency (roughly 6570% moisture) (photos 1517).
7) Place a mound of the mixture on a soil surface and cover it with the straw mat or leaves, protecting it from sunlight (photo 1
. Allow the microbes to propagate for 7 days. Periodically examine the external surface of the pile for white mold growth, monitor internal temperature of the pile with a composting thermom- eter so as not to exceed 122°F (50°C), and turn the pile with a shovel (a minimum of three to four times during the week) to keep fermentation temperatures from getting too high.
When the fermentation process is finished, internal temperature will stabilize, indicating cultivation is
finished. Your culture of naturally occurring micro- organisms is now ready for use (photos 19, 20).
Application
What do I do with the fermented mixture?
Dilute the final product (1 to 1 by volume) with soil and incorporate this mixture into the surface soil as a top- dressing for crop production, or add it to your compost pile. This biological soil amendment is expected to en- hance soil microorganism activity.
For more information, please contact the author (
[email protected]).
Acknowledgments
The project team thanks the Farm Pilot Project Coor- dination, Inc (FPPC) and the CTAHR Integrated Pest Management (IPM) Project for providing funding for the production of this publication. The team also thanks Ruth Niino-DuPonte, Glenn Sako, Luisa Castro, and Piper Selden, and Jim Hollyer for their constructive comments and suggestions.
organisms (EM) and waste management systems in future directions for on-site systems: Best management practice. Proceedings of the On-site 03 Conference, University of New England, Lanfax Laboratories Armidale. ISBN 0-9579438-1-4 p. 347354.
References
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