70年代末以来，江苏省丹阳市群众推行“挖沟条裁法”栽培单季茭白品种“蒋墅茭”，与小麦、毛豆、莴苣等旱生作物间套获得成功，茭白收获期在8月下旬至9月下旬，正处蔬菜伏缺期间，早于目前主要栽培的两熟茭，经济效益和社会效益均较好，但“蒋墅茭”菱白采收期较早是其本身品? Since the late 1970s, the masses of Danyang City, Jiangsu Province, have implemented the Trenching Discrimination Law to cultivate the single-crop cultivar “Jiangshuang”, which was successfully dug together with the drought-tolerant crops such as wheat, soybean and lettuce. The harvest date in August Late to late September, is in the period of vegetable shortage, as early as the current main cultivation of Shuangzhuo, economic and social benefits are better, but “Jiang Shuli” Lingbai harvest period is its own products?