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七十年代以来我国中部地区的山东、江苏、河南、安徽、陕西及河北南部等省,为改变不产糖的局面,积极发展甜菜生产,目前已成为我国甜菜生产新产区。在这些省份种植春甜菜,占地时间长,土地利用率低,甜菜褐斑病严重,含糖率低,影响工业制糖,采用夏播势在必行。目前普遍在小麦收获后播种甜菜,但因保苗困难,生育期短,块根产量低,影响甜菜的发展;采用春育苗夏移栽虽可解决夏播的弊病,但花费劳力多,同时在夏收季节正处“三夏”大忙,劳畜力紧张,普遍推广尚有一定的困难。因
Since the 1970s, the provinces of Shandong, Jiangsu, Henan, Anhui, Shaanxi and southern Hebei in the central part of our country have actively developed the production of sugar beet and have now become new sugar beet production areas in our country. Spring beets planted in these provinces, covering a long time, low land utilization, beetle brown spot disease serious, low sugar content, affecting industrial sugar, the use of summer sowing is imperative. At present, it is common to sow sugar beets after the wheat is harvested, but it is difficult to maintain seedlings, short growth period and low root yield, which affects the development of sugar beets. Transplanting in spring and summer can solve the problem of summer sowing, At the “three summer” great favor, labor shortage, general promotion there are still some difficulties. because