水葫芦是生长在南方的一种优质、高产、水生青饲料和绿肥作物。一九七二年我省德州地区开始引种。如何使水葫芦在北方安全越冬,是首先应当解决的新问题。在各级党委的领导下,德州地区在195个公社近500个基点开展了群众性的毯冬保苗实验。他们分忻了水葫芦的生长习性,抓住了喜热(温度)这个主要关键,采取温泉、温室、温床、 Water hyacinth is a high quality, high yield, aquatic green feed and green manure crop growing in the South. In 1972, the province of Texas began to introduce. How to make water hyacinth wintering in the north safely is the new problem that should be solved first of all. Under the leadership of party committees at all levels, the massacre of blanket winter seedling conservation experiments was conducted in nearly 195 basis points in 195 communes in the Texas area. They divided the growth habits of water hyacinth, seize the hi heat (temperature) the key to take hot springs, greenhouses, hotbed,