The bamboo shed is 20 meters long and 5 meters wide, covering an area of 100 square meter. It needs 60 bamboos 4-5 meters long, 40 of which are used as supports, and 1 bamboo is inserted every 1 meter, 20 bamboos on each side are cross-bound to form an arch, and the other 20 bamboos are used for lateral fixation of the arch, and they are tied five times. 60 bamboos are about 125 kg, and each kg is about 60 yuan, 0.5 yuan.
The special thick film for greenhouses with a width of 8m or 9m is 25m, and the price is 130- 150 yuan.
A 2m-wide black sunshade needs 60 Mi Yue 150 yuan. Cut it into 6 meters wide and 20 meters long, which can be used for shading the shed film in summer and autumn, or used reed mats or grass curtains. When it rains, it must be covered with plastic film to prevent rainwater from invading, otherwise it will be harmful to mushrooms. In this way, a perennial mushroom greenhouse can be built, with a total investment of about 360 yuan.
2. Investment in raw materials
100 square meter greenhouse except aisle, practical 80 square meters, straw 1.250 kg, 0. 1 yuan per kg, 1.25 yuan (raw materials such as wheat straw, cottonseed hull, sawdust and corncob can also be used); 250 kg of wheat bran or rice bran is about 300 yuan (it can also be replaced by dried dung of cattle, chickens and other livestock and poultry); 63 kg compound fertilizer 100 yuan; 75 kg lime 50 yuan; Plastic film 32 yuan is about 4 kg; Extra-large EC05 Coprinus comatus completely virus-free three-level cultivation species 120kg is considered as 360 yuan. The raw material cost * * * is125+300+100+50+32+360 = 967 yuan (the strain can save more than 200 yuan if it is made by itself).
3. Input-output benefit analysis
According to the minimum mushroom yield per square meter 15 kg and the retail price per kilogram 10 yuan, the gross income of 80 square meters is 12000 yuan-total investment (360+967 yuan) = net profit 10000 yuan; If calculated by the wholesale price of 6 yuan/Jin, the net income is more than 5,800 yuan. If the high income 1000 yuan and the low income is 5800 yuan, the net income is more than 7900 yuan. Generally, mushrooms begin to grow 45-50 days after sowing, and then they are harvested every 15-20 days/batch, and 5 batches can be taken, with 4-5 months as 1 production cycle.