(一)前言“膠州大白菜”产于山东膠县,外地称它为“膠白”是全国的名产。它具有汁白味美、纖维细少、易(?)好熟、棵大包心紧等优良特点。它的供应期从10月中旬开始,一直供应到第二年三、四月间。产地分布在沽河、膠河、三里河等流域的雨岸。播种面积在解放后有很大发展,1949年全县只有5,600亩,亩产量只有5,400斤,但到1957年就已扩大到15,000亩,平均每亩产13,000斤。特别出现若干高额丰产田,沽河人民公社创亩产3万斤單株52斤纪录,1958年虽受病害很大,但也出现高产卫星,沽 (A) Preface “Jiaozhou cabbage” produced in Shandong Jiaoxian, the field called it “plastic white” is a national product. It has a delicious juice white, fine fibers, easy (?) Good cooked, big heart tight package and other fine features. Its supply period starts in mid-October and continues until March and April of the second year. Origin distribution in the river, plastic river, Sanlihe and other watershed rainbank. After 1949, the sown area has greatly developed. In 1949, the county only had 5,600 mu of mu and produced only 5,400 mu of mu. However, it expanded to 15,000 mu in 1957 and averaged 13,000 kilos per mu. In particular, a number of high-yielding fields appeared. The people’s commune of Hepu hit a record yield of 30,000 kg of 52 kg per plant. Although the disease was very large in 1958, high-yielding satellites appeared,