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Easy Compost Recipe

Preparation of mushroom compost based on straw and horse manure



This recipe was derived from a larger volume formula. This smaller volume formula may require additional composting time.
The bold number refer to the day of the composting procedure.

1
Wet down.* Wheat Straw one bale, or Stable straw with 10% horse manure, ( 50 pounds.)

2
Let it sit:

3
Let it sit:

4
Add - dried poultry waste and Urea. 1 Pound - Dried Poultry Waste & 1.2 ounce Urea.

5
Let it sit:

6
Flip pile and wet down..*

7
Let it sit:

8
Flip pile and wet down.*

9
Let it sit:

10
Let it sit:

11
Add - dried poultry waste and Urea. 1 Pound - Dried Poultry Waste & 1.2 ounce Urea.

12
Flip pile.

13
Flip pile and wet down.* - Add 2 pounds - Cotton Seed Hulls.

14
Let it sit:

15
Flip pile and wet down..* (Note: Compost will naturally start to heat up to high temperatures, this is good.)

16
Let it sit:

17
Add - 3lbs. Cotton Seed Meal, 2 lbs. Gypsum, 1 lbs. Rape Seed Meal, 1 lbs. Peat Moss.

18
Turn pile, water lightly.(From now on keep the pile in a more compact format to allow heat to build up.)

19
Let it sit.

20
Turn pile, water lightly.

21
Let it sit:

22
Turn pile, water lightly.

23
Let it sit:

24
Turn pile, and fill containers.

 

Ready to pasteurize at 142 degrees F. for 6 hours.

First stabilize at 132 F. for 3 hrs. , then raise to 142 F. for 6 hrs.

Finish compost contains 65-70 percent water content.

Slowly let cool for 2 days. Slow clean air ventilation required.

Well made compost is blackish and has a lightly caramel type coating covering the straw. Over composting will lower mushroom yields.

Compost is pasteurized to kill any existing undesirable fungi growing in the compost. It can then be inoculated with mushroom spawn.

* Wet down just enough to moisten the material and not enough to cause water run off. Run off washes away the added nutrients.

Note: Compost should be made on a solid surface to prevent the washing away of added nutrients. (Concrete, asphalt, plastic, wood.)

 

Links:
Mushroom Substrate Preparation for White Button Mushroom
Managing Microbial Activity During Phase II Composting
Six Steps to Mushroom Farming: Step 1
Small Scale Mushroom Production
Growing Mushrooms on Compost
Edible Mushroom Cultivation - Agaricus Production; Phase I (pdf)
Edible Mushroom Cultivation - Agaricus Production: Phase II; Casing; Spawn Run; Pinning (pdf)

 

~by bluehoney
revised by Anno

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