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菱(Trapa bicornis)是一种水生高产作物。它含有20～24％的淀粉,少量的维生素和钙、磷、铁等矿物质,可作粮食和菜餚,又可酿酒、制糖和醋等。菱的枝叶可做猪饲料,也可当肥料。嘉兴地区水面广阔,是产菱的重要地区。同时,种植历史悠久,栽培经验丰富。据浙江省文物管理委员会在钱山漾(属吴兴县)古文化遗址中发掘结果,发现新石器时期的菱等遗物,说明是我国菱的原产地。所产的菱远销各地,驰名中外。常年种植12万亩左右,年产量达80～90万担。最近,我们对菱的主要品种特性和栽培技术作了初步调查。现将调查的资料归纳如下。
Trapa bicornis is a hydroponic high yield crop. It contains 20 ~ 24% starch, a small amount of vitamins and calcium, phosphorus, iron and other minerals, can be used for food and dishes, but also wine, sugar and vinegar. Ling leaves can do pig feed, but also when the fertilizer. Jiaxing area is vast and is an important area of Lingzhi. At the same time, planting a long history, cultivation experience. According to the Zhejiang Cultural Relics Management Committee in Qian Shan Yang (Wuxing County) ancient cultural sites in the excavation results and found Neolithic Ling and other relics, indicating that China’s Ling origin. The Ling produced by all around, well-known at home and abroad. Perennial planting 120,000 mu or so, annual output of 80 to 900,000 Tam. Recently, we conducted a preliminary investigation of the main varieties of Ling and cultivation techniques. Now the survey data summarized as follows.