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厂房结构和设施当前我市大白菜育苗厂房大致有两种:一为竹木结构,二为钢架结构。两者相比,各有千秋。竹木结构的特点是取材容易、造价低,可当年修建,使用和拆除。灵活性大。缺点是环境条件控制程度差,育苗效率较低。钢架结构的特点是坚固,用途多样化(育苗、栽培、采种),环境条件较优越,但需要一定的投资。如建造一幢72平方米的厂房,投资费用2,000余元。(一)竹木结构的厂房:多数为拱圆型。宽5、6米,长25米左右,边柱高1.5—1.8米,中间最高点
Plant structure and facilities At present, the city cabbage plant nursery roughly two kinds: one for the bamboo structure, the second is the steel frame structure. Compared to each other, each has its advantages. Bamboo wood structure is characterized by easy access, low cost, which can be built, used and demolition. Great flexibility. The disadvantage is the poor control of environmental conditions, nursery efficiency is low. Steel frame structure is characterized by strong, diversified uses (nursery, cultivation, seed), superior environmental conditions, but requires a certain amount of investment. Such as the construction of a 72 square meters of factory buildings, investment costs 2,000 yuan. (A) bamboo structure of the plant: the majority of round arch. 5,6 meters wide and 25 meters long, 1.5-1.8 meters high side columns, the highest point in the middle