Sunday, April 8, 2012

Growing Shiitake at Home


Logs inoculated with shiitake mycelium.
The Pacific Northwest is known for it's dark/damp forest floor, a perfect environment for growing our own shiitake. My daughter and I begun inoculating logs with mycelium spawn plugs from Puget Sound Mushrooms. We love the idea of fresh organic gourmet mushrooms coming from our backyard. We've been avid gardeners and dabble in organic, hydroponic gardening, but this was something brand new.




Easy to gather supplies for inoculating shiitake logs.

Getting started was actually amazingly easy. We'd been hit by a winter storm that knocked down several alders around our property. Conveniently, it was the hardwood of choice, here in the PNW for growing shiitake.

We gathered a rubber mallet, drill with a 5/16 bit and stop, ordered a couple of pounds of bees wax (cheese wax is good, too), a small paintbrush, a tin can and a small portable burner.

My maintenance team was kind enough to cut trees into four foot lengths as they cleared trails around our facility. After collecting trees, we allowed the logs to sit for about a month to allow the natural anti-fungicides, within the tree, to die. then, we started the simple inoculation process.


The Process of Inoculating Logs with Shiitake Spawn

Drill holes in a diamond pattern 4"-8" apart.
1. Clean extra debris from the exterior of the logs. Lichens and mosses can suck energy from the wood and cause competition for the mycelium.

2. Drill holes for spawn plugs. We used a 5/16 drill bit with a bit stop set to 1 and 1/14" depth. There seems to be conflicting spacing recommendations, but we went with 6 inches apart and alternating diamond pattern between the rows. A good way to select the number of "rows" that you would use is one row for every inch of diameter.

3. Insert the spawn plugs or inoculated sterile sawdust. We went with the pre-purchased spawn plugs (we may make our own in the future). Each four foot log used about 50-60 spawn plugs. these were tapped in easily with a rubber mallet (a great project for my 11 year old daughter-actually all of it was).


4. Seal the holes/plugs with bee's wax, heated to a relatively high temperature (heat assists in eliminating potentially harmful microbes). the wax seals minimize the opportunity for bugs and other naturally occurring fungi to enter the holes. We sealed the bottom of the logs to minimize the same issues with the bottom of the log.

I've left the logs overnight (with a small sprinkler on them) in order to ensure enough moisture.

That's it. Your logs are ready to go.

Most of my research has suggested that logs need to be stored in about 80-90% shade and kept at 30-50% moisture level (easy in the PNW).



Log inoculated with shiitake mycelium spawn.
We are currently selecting our spot for the 6-18 month wait for the mycelium to take over the logs and for the shiitake to "fruit."

We'll keep you in the loop.

Tuesday, May 3, 2011

Build a Compost Bin and Tips on Composting

Good composting isn't only about building a good bin and correctly mixing the compost. It's also about what you add to the compost. This article will provide a simple outline of what you can and can't compost. Follow the reduce, reuse and recycle way of life to reduce the amount of things you have to end up throwing away.

Steps

  1. Choose or construct a bin for your compost. While you can compost successfully in a pile on the ground, a bin will keep the process a bit neater and help to discourage animals if you are composting food scraps. Depending on the construction of the bin, it can also help to regulate moisture and temperature. A good minimum size for a pile is at least 1 cubic yard or 1 cubic meter, though a pile can go larger than this, and smaller-scale composting can be made to work.
  2. Fill your bin with a balanced mixture for best results:
    • Green stuff (high in nitrogen) to activate the heat process in your compost. Perfect heat-generating materials include: young weeds (before they develop seeds); comfrey leaves; yarrow; chicken, rabbit or pigeon manure; grass cuttings; etc. Other green items that compost well include fruit and vegetables; fruit and vegetable scraps; coffee grounds and tea leaves (including tea bags - remove the staple if you wish); vegetable plant remains; plants.
    • Brown stuff (high in carbon) to serve as the "fiber" for your compost. Brown stuff includes fall (autumn) leaves; dead plants and weeds; sawdust; cardboard & cardboard tubes (from foil wraps etc); old flowers (including dried floral displays, minus plastic/foam attachments); old straw and hay; and small animal bedding.
    • 'Other items that can be composted but you may not have thought of before: paper towels; paper bags; cotton clothing (torn up); egg shells; hair (human, dog, cat etc.) Use all these items in moderation.
    • Air. It is possible to compost without air (anaerobically), but the process employs different bacteria and an anaerobic compost pile will take on a sour smell like vinegar. It may also attract flies or take on a matted, slimy appearance. If you believe your compost pile needs more air, turn it, and try adding more dry or brown stuff to open up the structure.
    • Water. Your pile should be about as damp as a sponge that has been wrung out. Depending on your climate, you can add water directly or rely on the moisture that comes in with "green" items. A lid on the compost bin will help to keep moisture in. If a pile gets too much water in it, it might not get enough air.
    • Soil or starter compost. This is not strictly necessary, but a light sprinkling of garden soil or recently finished compost between layers can help to introduce the correct bacteria to start the compost cycle a little more quickly. If you are pulling weeds, the soil left on the roots may be sufficient to serve this purpose. Compost starters are available, but probably not necessary. [1]
  3. Layer or mix the different materials in your bin so that they come into contact with one another and so that you avoid any large clumps. Especially avoid compacting large quantities of green materials together, since they can rapidly become anaerobic.
    • If possible, start with a layer of lightweight brown material, such as leaves, to help keep enough air near the bottom.
    • Try for a mixture of anywhere from 3 parts brown to 1 part green to half and half, depending on what materials you have on hand.
    • Sprinkle each layer lightly with water as you build the heap, if it requires additional moisture.
  4. Turn your pile regularly, once every week or two. Clear a patch next to the pile. Then use a pitchfork and move the entire pile to the clear spot. When it is time to turn the pile again, move it back to the original spot, or back into the bin. Mixing the pile in this way helps to keep air flowing inside the pile, which encourages aerobic decomposition. Anaerobic decomposition will smell very stinky (generally sour, like vinegar) and they decompose materials more slowly than aerobic bacteria. Turning the pile helps to encourage the growth of the right kind of bacteria and makes for a nice, sweet-smelling pile that will decompose faster.
    • Try to move matter from inside to outside and from top to bottom. Break up anything that is clumpy or matted. Add water or wet, green materials if it seems too dry. Add dry, brown materials if the pile seems too wet. If you are still adding to the pile, take the opportunity while you turn it to introduce the new matter and mix it well with the older matter.
  5. Decide whether to add slow rotting items such as tough branches, twigs and hedge clippings; wood ash; wood shavings and wood pruning. They can be composted, but you may want to compost them separately because they will take longer to break down, especially in a cold climate with a shorter composting season. Shred heavy materials, if you can, for faster decomposition.
  6. Try to avoid composting bread, pasta, nuts, and cooked food. They don't break down very easily, become quite slimy, and can hold up the heating, rotting-down process. (Old nuts left in the garden will disappear quickly if you have squirrels or monkeys around!)
  7. Never compost the following items for reasons of health, hygiene and inability to break down: meat and meat scraps; bones; fish and fish bones; plastic or synthetic fibers; oil or fat; pet or human feces (except for manure of herbivorous creatures such as rabbits and horses); weeds that have gone to seed; diseased plants; disposable diapers (nappies); glossy paper or magazines; coal and coke ash; and cat litter. Place these items in the normal garbage collection.
  8. Harvest your compost. If all goes well, you will eventually find that you have a layer of good compost at the bottom of your bin. Remove this and spread it on or dig it into your garden beds.
    • You may wish to sift it through a coarse mesh screen or use your hands or pitchfork to remove any larger chunks that haven't yet broken down.
    • Very fresh compost can grow plants, but it can also rob the soil of nitrogen as it continues to break down. If you think you are not all the way done, either leave the compost in the bin for a while longer or spread it in your garden and let it sit there for a few weeks before planting anything in it.

Video


Tips

  • Composting works almost magically and FAST if you begin with a cubic yard of proper materials (3 parts "brown" stuff and 1 part "green" stuff), keep it moist, and turn it weekly. It's possible to get two large batches of compost each year if you stick to these points. If you vary, it will just take a bit longer, but it will still compost.
  • The fastest way to get compost is to mix 1 part grass clippings and 3 parts dead leaves (chopped with a mower), place in a three-sided bin with no top or bottom, keep it moist, and turn it with a cultivating fork every 2 weeks.
  • Locate your compost bin somewhere that is easy to access, so that you and family members will be encouraged to use it.
  • Share a composting facility if you live in an apartment complex.
  • Have a mini compost bin indoors that you keep near your meal preparation area. It should be something that is easy to fill up, transport daily to the compost bin, and keep clean. You could consider a small plastic container (there are fun tiny garbage cans with lids) or use something as simple as a glazed terracotta plant saucer - it looks nice, is easy to clean and transports easily.
  • To aid the decomposing, add some red worms, which can be bought online. If you use a compost bin with an open bottom, the worms will probably come into your compost pile on their own.
  • Cut around the top of a plastic milk jug leaving it attached at the handle. Keep it under the kitchen sink to collect your compost.
  • For faster break-down, shred leaves, clippings; and crush egg shells.
  • At some point, you may need to start a new compost pile, and stop adding to the old compost pile to let it "finish up."
  • Layering is very effective if possible - one layer brown stuff, one layer green stuff, one layer composting worms (as long as the temperature of your compost does not exceed 25ÂșC).
  • Contact your local municipality if you can't compost for whatever reason, to see if they will collect garden waste for composting. Many municipalities will collect Christmas trees and chip them for compost in January.
  • In dry weather, fill your bucket with water each time you dump in the compost pile. This will help add needed moisture.
  • If you mow your yard, collect your grass trimmings! It's free, and it's a great way to get more compost, unless you have a mulching mower. A mulching mower will add the grass back to your yard as mulch (not thatch), which will provide your lawn with 40% of its fertilizatin needs. Also, never compost grass that's been mowed within a few days of adding chemical peticides or fertilizers.
  • Bury food scraps under a layer of general yard waste if you wish to include them. It will help to discourage animals and flies. So will having a contained, covered bin.
  • While it's not strictly necessary, a compost pile that's working at its fastest will heat up. If you have created a good mix, you may notice that it's very warm inside, even steaming on a cold morning. This is a good sign.

Warnings

  • Don't add the things to the compost that are marked above as "never compost" - they will absolutely ruin the compost for one reason or another and some are downright unhealthy.
  • While it is slowly becoming possible to compost dog feces, this must only be attempted under very special conditions in municipally sanctioned compost bins; usually these are located in local parks. Do not use this compost in or near vegetable and fruit gardens. Check with your local municipality for more information. Encourage your municipality to supply these bins in parks and on dog-walking routes.
  • If you are going to compost weeds, dry them out before adding them to the pile. If you don't, they might start to grow.

Things You'll Need

  • A location for your compost pile
  • Vegetable scraps, yard waste, and other compost materials
  • A pitchfork or other tool to turn the compost

Sources and Citations

  1. http://www.simplegiftsfarm.com/compost-starter.html
Article provided by wikiHow, a wiki how-to manual. Please edit this article and find author credits at the original wikiHow article on How to Compost. All content on wikiHow can be shared under a Creative Commons license.

Monday, May 2, 2011

Worm Tea - Easy to Make for the Home Garden

Worm tea may not sound too appetizing but your plants will really love it. You can buy this amazing fertilizer from a number of on-line sites but if you have a worm bin, you can make your own. Worm tea lets you fertilize without adding bulk to your soil and water your garden with something really "nutritious" for your plants. Here's how to make "tea" from worm castings. Your garden will practically jump up and shout "Hallelujah!" when fertilized with this mixture and you will be amazed at the growth and flowering that results.

Ingredients

  • 2 cups of well composted worm castings (no large scraps, preferably sifted)
  • 2 tablespoons of corn syrup or molasses
  • Water which has been left to stand overnight or rain water.
  • An aquarium pump and airstone (optional but desirable)
1 bucket
1 orphan sock with no holes

Steps

  1. Put the worm castings in an old sock or stocking hose that has no holes and tie the opening closed.
  2. Fill the bucket with water. Either use rain water or let the water stand so it is chlorine free. You don't want to kill the beneficial micro-organisms.
  3. Add the corn syrup or molasses to the water. This will serve as food for the micro-organisms.
  4. Place the sock in the bucket.
  5. If you have one, use a bubbler like an aquarium pump and airstone. Place it in the the bucket and plug in the bubbler so the the water is aerated.
  6. Let water and castings bubble (or at least soak) for 24 hours. If you don't have a bubbler, consider stirring occasionally, being careful not to break the sock or stocking.
  7. Use within 48 hours.

Tips

  • Castings tea must be "brewed" (allowed to set or "steep") as directed above to be most effective. By steeping the castings and aerating the mixture you encourage the growth of micro-organisms which are beneficial to plants.
  • For the same reason, you should always use water that is chlorine free. Rain water is best but you can also let the water in the bucket stand overnight and the chlorine will dissipate.

Warnings

  • Remember that water and electricity don't mix well. Dry your hands before you plug in anything.
  • Worm tea is not for human or animal ingestion -- just give it to your garden!
  • Worm tea is extremely poisonous to cats and apparently somewhat desireable - do not leave out uncovered

Things You'll Need

  • An old sock
  • 5 gallon bucket
  • Aquarium pump and bubbler stone (optional but very useful)



Tuesday, April 12, 2011

YMCA Camp Seymour - Living Machine Waste Water Treatment




The Facility

YMCA Camp Seymour is a unique environmental education center and residential camp located within a small inlet on Puget Sound in Washington State.

Background
As part of a plan to accommodate an increase in the number of annual visitors to this year-round residential camp, a great deal of consideration was given to preserving natural resources and minimizing environmental impacts within the camp’s local environment.
Consequently, in keeping with the camp’s underlying philosophy of promoting and teaching environmental stewardship and sustainability, the camp’s Board of Directors selected a Living Machine® system to address wastewater treatment needs. This system essentially eliminated potential impacts to the environmentally sensitive Puget Sound, and also proved to be a beneficial asset to the camp’s environmental curriculum.

The YMCA Camp Seymour Living Machine® system was designed to achieve advanced quality effluent suitable for re-use for an average flow of 10,000 gallons per day and future plans to expand the system to accommodate up to 14,000 gallons per day. Indoor waste treatment components within a beautiful and inspiring greenhouse allow the Living Machine® system to become an integral part of the educational experience and environmental curriculum at the camp.

The Process
Septic wastes from a variety of sources including staff housing, cabins, common bath facilities and the Camp kitchen, flow by gravity to a network of septic tanks where the coarse solids are removed. From the septic tanks, the effluent is pumped to an equalization
tank/dosing tank where denitrification of the waste occurs. Next the waste is pumped to textile trickling filters in doses and the conversion of ammonia to nitrate (nitrification) begins.
From the textile filters, the waste is pumped indoors to a series of six open Hydroponic Reactor tanks, each hosting a diverse population of aquatic plants and organisms. In this oxygenated environment the communities of macro and microorganisms work to further break down the waste and remove any remaining dissolved organic matter. From the reactors, the effluent flows outdoors to two constructed wetlands; and, finally is disinfected with an ultraviolet light. Treated effluent is stored for reuse on-site to irrigate a playing field. The camp also plans to reuse this treated effluent for toilet flushing in any buildings added to the campus in the future.

Benefits
The Living Machine® system at Camp Seymour allowed the camp to expand its facilities with little or no additional impact resulting from an increase in wastewater generated. Furthermore, this unique assembly of ecologically engineered subsystems does not require processing or disposal of secondary biosolids. In addition, the Living Machine® system provides classroom space and has become an important component of the camp’s environmental curriculum.

For more information on taking your school to YMCA Camp Seymour visit their Outdoor Environmental Education page.