沙县是我省商品粮基地县之一。近年来，随着沙县小吃业的发展，大量劳动力外流从事第三产业引起农村劳力紧张，人工费用上涨，促进了农业机械化的发展。以1997年秋季的价格为例，人工收割脱粒每亩130元，用联合收割机只需如元，为f抢季节争农时和降低生产成本，农民对使用机械 Shaxian County is one of the commodity grain counties in our province. In recent years, with the development of snack industry in Shaxian County, a large amount of labor force went out to engage in tertiary industry, causing labor shortage in rural areas and rising labor costs, which promoted the development of agricultural mechanization. In the fall of 1997 the price, for example, threshing manual harvesting 130 yuan per mu, with the combine harvester just as Yuan, f grab the season for agriculture and reduce production costs, farmers on the use of machinery