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黑龙江省位于我国最北部,气候寒冷,年平均气温—3～3℃,无霜期仅115天左右,一年中有六个月是冰天雪地。春季干旱,年降雨量多集中在6、7、8三个月。昼夜温差大,一年四季温度变化明显,空气干燥。自然条件很难满足食用菌的生长发育,用南方的常规技术栽培食用菌常出现污染,或只发菌不出菇,或长出的菇
Heilongjiang Province is located in the northernmost part of China. Its climate is cold. The annual average temperature is -3 ~ 3 ℃. The frost-free period is only about 115 days. Six months of the year are ice and snow. Spring drought, the annual rainfall concentrated in 6,7,8 three months. Large temperature difference between day and night, significant temperature changes throughout the year, air-dried. Natural conditions difficult to meet the growth and development of edible mushrooms, cultivation of edible mushrooms often occur with conventional techniques in the South pollution, or only germs not mushrooms, or grow mushrooms