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Thread: Growing mushrooms

  1. #1

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    Default Growing mushrooms

    As so many people ask about the subject of growing mushrooms I decided to take the time to write you a good explanation.
    It will take some time for the article to be finish, I will write some more info when i can.
    Please do not copy the article!

    Growing mushrooms
    by shachar alfie
    Mushroom can be classified to three types on the base of the role of mushrooms in the ecosystem.
    The classes are Mycorrhizal, saprophytic and parasitic, the mycorrhizal mushroom live in symbiosis with the root of a plant, the parasitic mushroom as you can guess by the name live with parasitic relationship to a plant and the saprophytic mushroom is the recycler of the ecosystem, and as you can guess most cultivated mushrooms are saprophytic.
    The saprophytic mushroom as a recycler needs an organic material to recycle back to the ecosystem.
    The recycled material needs to be moistened to 65% water for sawdust base substrate or 70 to 75% for straw.

    List of cultivated saprophytic mushrooms that will grow on straw
    Pleurotus ostreatus -Florida Oyster
    Pleurotus ostreatus var. columbinus -Blue Oyster Mushroom
    Pleurotus pulmonarius -Summer Oyster Mushroom
    Pleurotus cornucopiae -Yellow Oyster Mushroom
    Pleurotus eryngii -King Oyster Mushroom
    Pleurotus salmoneostramineus -Pink Oyster Mushroom
    Volvariella volvacea -Paddy Straw Mushroom
    Calocybe indica -Milky mushroom

    List of cultivated saprophytic mushrooms that will grow on sawdust
    Agrocybe aegerita -Black Poplar Mushroom
    Pholiota nameko -Nameko Mushroom
    Flammulina velutipes -Enoki
    Hypsizygus ulmarius -Elm Oyster Mushroom
    Hypsizygus tessulatus Buna-Shimeji
    Lentinula edodes -Shiitake Mushroom
    Hericium erinaceus -Monkey Head, Lion’s Mane
    Ganoderma lucidum -Reishi
    Pleurotus eryngii -King Oyster Mushroom

    Mushrooms that will grow on (or recycle) straw or wood/sawdust are primary decomposers.
    Button and Portobello mushrooms for example are secondary decomposer as they continue the job of the compost microorganisms.

    To be continue!

    Me after finding morels, morels are some of the most expensive mushrooms in the world

    Last edited by mushroomsil; June 25th, 2009 at 08:01 PM.

  2. #2

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    May 2009
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    Default Growing mushrooms

    What will you find in a mushroom farm?

    The laboratory:
    The role of the lab is to expend the mycelium from the small mycelium mass in the test tubes to many spawn bags.
    To inoculate 1 ton of straw (dry weight) you will need in the range of 50 to 100 KG of spawn.
    The lab is an easy to clean room, in the room you will find A laminar flow hood (a big hepa filter connected to a blower), positive air pressure generator, autoclave, shelves, Petri dishes, jars, test tubes, lab blender and a magnetic stirrer.

    The grow rooms:
    Three very important phases will happen in the grow room:
    Incubation, Primordia formation and Fruit body development.
    The grow room is a very big easy to clean room; in the room you will find a cooling system, fogger, air circulation system, a good air filter, fluorescent lamps.

    To be continue.....

  3. #3

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    Jul 2009
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    Smile

    will be waiting for ur information .

  4. #4

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    Default Growing oyster mushroom from oyster spawn.

    Growing oyster mushroom from oyster spawn.

    The ingredients are:
    1 ton of straw (cereal straw)
    50 KG of oyster spawn
    Water

    The tools are:
    Steam generator
    Blower fan + Manual Speed Control
    Fogger + Humidistat
    Electrostatic\HEPA Air Filter
    fluorescent daylight
    Sling Psychrometer
    Thermometer

    Wet the dry straw to 70 to 75 % water, and use the Steam generator to expose the wet straw to a temp of 64C to 71C for 2 hours.
    Let the straw cool to 25C to 30C and mix the straw and the oyster spawn(50 KG of spawn-"wet weight" to 1 ton of "dry weight" straw)

    cooling the straw


    Fill bags with the spawned straw.
    Punch holes in the bags (for a 2.5 meter high, 30CM diameter bag you need 200 to 300 holes)

    Install the Blower fan + Manual Speed Control / Fogger + Humidistat / Electrostatic\HEPA Air Filter\ fluorescent daylight in the grow room.

    Let the bags in too the grow room.
    Set the Humidistat to 95% RH and the Blower speed to low.
    Close the light!!!
    Let the bags incubate for 7 to 10 days.
    After the incubation the straw will be white from the mushroom mycelia.

    the bags after the incubation


    Set the Humidistat to 95% RH and the Blower speed to high.
    Open the light!!! (You will need 12 hours light on / 12 hours light off)

    in 3 to 5 days you will see the primordia formation (small mushrooms)

    primordia formation


    at the end of the primordia formation set the Humidistat to 90% to 85% RH

    let the mushroom grow for 3 to 5 more days and you can harvest the mushrooms.

    mushrooms for harvest


    Set the Humidistat to 95% RH and in 3 to 5 days you will see the new primordia formation :-)
    You can harvest a new crop every 7 to 14 days for three to four crops.

    To be continue.....
    Last edited by mushroomsil; July 23rd, 2009 at 06:19 AM.

  5. #5

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    Default

    will b wating 4 ur next information

  6. #6

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    Default Making spawn

    Making spawn

    Before I will explain to you how to make spawn I will need to answer the question what is spawn.
    Spawn is an organic material colonized by the mushroom mycelium, usually cereal grain /wood sawdust (and sometime wood plugs for log cultivation).
    Spawn is used to inoculate the substrate that is used for the production of mushrooms, the idea behind spawn is that each individual cereal grain or a small piece of sawdust will perform as a separate mycelium inoculation point.
    The more inoculation points the faster the mycelium will colonize the substrate.

    spawn



    By using spawn what we are actually doing is asexual reproduction of the mushroom, or in a more simple word cloning.
    The advantage of using cloning and spawn is that you know exactly what you're getting, the new offspring will be genetically identical to their single parent, while in using sexual reproduction from spores every new offspring will have a different genotype.

    The first stage for making spawn is buying a clone of the mushroom you want to grow.
    You can buy a clone/mushroom culture from a company that have a culture library collection.
    What you will actually get is a test-tube; in the test tube you will find a jelly from agar, nutrient, and a growing mushroom mycelium.

    mushroom culture test-tube


    The second stage is to make Petri dishes with sterilized agar solution.
    A very simple way to make a solution is to cook potatoes in water for one hour.
    Now you throw the potatoes but don't throw the water!
    Mix the water with the appropriate amount of agar powder put the mixed solution in a bottle and put the bottle in the autoclave.

    a small autoclave picture


    To the autoclave add glass Petri dishes.
    Sterilize the bottle and Petri dishes for 30 minutes at 15 psi.
    After the sterilization let the autoclave cool down to 0 psi in front of the HEPA filter.
    Open the autoclave take out the bottle and Petri dishes.
    Always work in front of the laminar flow hood (HEPA filter).
    pour the agar solution in to the Petri dishes and let the solution to cool and harden.
    The Petri dishes with the sterilized agar solution are ready.

    laminar flow hood picture


    To be continue.....
    Last edited by mushroomsil; August 11th, 2009 at 11:08 AM.

  7. #7

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    Default more pics

    agar solution bottle After the sterilization


    pouring the agar solution in to the Petri dishes


    To be continue.....

  8. #8
    kirti s's Avatar
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    Default

    Dear Sir

    thanks for sharing ur knowledge to every one. please tell me in the absence of humistat what do general farmers do in ur place.

    and is the cultivation of morels very difficult.

  9. #9

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    Default

    Quote Originally Posted by kirti s View Post
    Dear Sir

    thanks for sharing ur knowledge to every one. please tell me in the absence of humistat what do general farmers do in ur place.
    it is not a must, the mushroom can grow on RH range from 85% to 100%

    Quote Originally Posted by kirti s View Post
    and is the cultivation of morels very difficult.
    YES, very difficult.

  10. #10
    Business Member
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    Default

    we are interested in mushrooms please guide having 3 acer land

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