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Growing your own mushrooms!

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Text and Photos by Henrylito D. Tacio

There are several ways of growing mushrooms, as there are several types of mushrooms. Most of them can be grown with little space and require little time. Rice farmers can make use of their rice straws following harvesting. 

Below are the fundamental techniques involved in the culture of banana or rice straw type of mushroom. This information comes from the Bureau of Plant Industry, which is now producing mushroom spawn in abundance:

Materials and Methods

Dry rice straws and banana leaves are the most common types of bleeding materials. However, other materials like cotton wastes, jute sacks, corn stalks, water hyacinth, sugar bagasse, and abaca waste materials may also be used for bedding materials.

A sufficient water supply and soaking tank or any similar container are used. Plastic sheets of gauge No.6, empty cement bags, and sacks are used to cover the beds.

Procedures

First, gather long, clean, and well-dried rice straws and banana leaves, preferably those that are still standing in the field. Avoid using old and contaminated bedding materials.

Then, bundle the bedding materials 6-8 inches in diameter. If rice straws are used, arrange butt ends together. Cut the bundle materials 1.5 to 2 feet long. Soak the bundled materials in water for at least 3 hours but not more than 10 hours until enough moisture is absorbed by the materials. Be sure to have a foundation serving as support for the bed. Set the soaked-bundled materials, closely-knit them together, evenly and compactly.

Water the bed well with the urea or ammonium sulfate at a rate of one to two tablespoons per gallon of water. Add sugar at the rate of 33 grams per gallon of water to improve the yield of mushrooms. Press the layer to the level of the surface. Stop watering when the water starts to drip off the bed.

Mushroom for sale

Insert thumb-size prawns around the bed, four inches from along the side and four inches apart from each other (Never plant spawn at the middle of the bed.) Set the second layer of straw on top of the first layer. Put the butt ends together in two opposite directions. Water and press down. Follow the same procedure until a six-layer bed is attained.

Finally, cover the entire bed with plastic sheet gauges No. 6 or cement bags or sacks for seven days, after which it is removed.

Care in the Mushroom Bed

When the bed is made, it may be best to cover it with a plastic sheet, gunny sack, or any suitable materials to protect it from the drying effect of the wind and to keep it humid.

After the removal of the plastic sheet, don’t water the bed as the bed is still wet. Watering should be done only in amounts, which would keep the surface moist and its environs humid.

Watering may be done using a sprinkler, passing the same over the bed and along the sides. Avoid soaking the bed as this condition is equally harmful to the proper development of the mushrooms as insufficient watering.

When the mushroom buttons start to form, water must be stopped until the flush is over. Resume watering when the flush is over to coax another flush to come.

Harvesting

The growth of mushrooms on the bed comes in flushes. With adequate maintenance and care, the first flush usually comes and flushes from 13 to 15 days following seeding. When a flush is on, watering must be avoided. Watering is resumed when the flush is over. Harvesting is done in the following manner:

1. Harvest the whole mushroom, including the stump. Don’t leave any stump in the bed as this would rot, and in rotting, the adjacent mushroom may be affected.

2. As much as possible, care must be taken not to disturb the small buttons.

3. Mushrooms in the button stage of growth are more succulent, hence they are better preferred than the fully opened ones.

4. Harvested mushrooms may be placed in trays or in kaings

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