Any cellulose-rich corn stalk, corn heart, wheat straw, rice straw, and a variety of weeds can all be used as a culture material for oyster mushrooms. The preparation of straw culture materials points are as follows: First, preparation. During the harvest season, spare stalks are promptly sun dried and stacked. Practice has proved that after 2 to 3 months of stacking of straw, straw and the best effect of bacteria. Note that moldy straw cannot be used to grow oyster mushrooms. The second is scrap. If corn stalks or corn kernels are used, they should be cut into pea-sized granules with a trowel or rake before use; if grass is used, they should be cut into small pieces 2–4 cm long. The formulation of various raw materials is as follows: First, wheat straw 60%, corn stalk 40%, or both 50%; Second, straw 50%, corn stalk 50%; Third, weed 50%, corn heart 50%. In the above three kinds of recipes, there are 40% to 50% of corn stalks or corn hearts, because the corn stalk (heart) has more sugar, which is beneficial to the growth of oyster mushrooms.
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