一.前言栽培桑树的目的,在于收获桑叶,饲养家蚕,生产蚕茧;通过工厂加工,得到最后的产品——丝绸.丝绸是我国特产,有4,000多年的悠久历史。全国有23省生产蚕丝。南至广东,北至辽宁,东至江浙,西至新疆。其中以江苏、浙江、广东、四川、山东、安徽、新疆等省为主要。台湾也有蚕丝生产。我国丝绸是目前出口的一项重要商品。五年来(1954年止)出口的丝绸,可以换回相当于24个无缝钢管厂的成套设备。对促进国家社会主义工业化,具有重大意义。从栽桑在农业生产中的地位看,也是很重要的。它的特点:第一,可以利用不宜栽种粮棉作物的土地栽桑。如山区荒地、田边、堤岸 I. Preface The purpose of cultivation of mulberry is to harvest mulberry leaves, raise silkworms and produce cocoon, and through the factory processing, get the final product - silk, which is a special product of our country with a long history of 4,000 years. There are 23 provinces producing silk. South to Guangdong, north to Liaoning, east to Jiangsu and Zhejiang, west to Xinjiang. Among them, Jiangsu, Zhejiang, Guangdong, Sichuan, Shandong, Anhui, Xinjiang and other provinces as the main. Taiwan also has silk production. China’s silk is an important commodity currently exported. Silk exported in the past five years (until 1954) can be repurchased for the equivalent of 24 seamless steel pipe plants. To promote the national industrialization of socialism, of great significance. It is also important to consider Zeng Sang’s position in agricultural production. Its characteristics: First, you can use the land should not be planted crops cotton planting mulberry. Such as mountain wasteland, Tanabe, embankment