我们北方目前人工栽培榆黄蘑一般都是在室内进行,栽培面积有限,成本高.为了扩大种植面积,降低栽培成本,我们从1988～1989年用发酵料在玉米地里栽培榆黄蘑,取得一定的经济效益.(一)选地备料栽培地选择在近水源,保水力强,排灌方便,土质肥沃的向阳地块.栽培料按猪粪20公斤、杂木屑50公斤、豆秆30公斤、硝酸铵1.5公斤、石灰1公斤、多菌灵200克的比例调配,每亩用料2500～3000公斤.于4月下旬拌料做堆发酵,料含水量为55～60%,堆高约1.3米,长度不限,堆向与风向平行,每隔1.5米设一个排气管(或草把),覆盖塑料薄膜.当料堆温度达70℃时要行翻堆,约7～8天翻 At present, cultivated elm yellow mushrooms in our northern area are generally carried out indoors, and the cultivation area is limited and the cost is high. In order to expand the planting area and reduce the cultivation cost, we cultivated the elm mushroom with the fermented material in the corn field from 1988 to 1989, Certain economic benefits: (A) the selection of preparation sites to choose in the near water, strong water retention, irrigation and drainage convenience, fertile land of sunny.Proplayation of pig manure by 20 kg, 50 kg of sawdust, bean stalks 30 kg, 1.5 kg of ammonium nitrate, 1 kg of lime and 200 g of carbendazim, with the dosage of 2500 to 3000 kg per mu. In late April, the materials were compounded and fermented, with the moisture content of 55-60% and the pile height of about 1.3 Meters, length is not limited, heap parallel to the wind direction, every 1.5 meters to set an exhaust pipe (or grass handle), covered plastic film.When the stack temperature up to 70 ℃ to turn overturning, about 7 to 8 days turn