水浮莲和水葫芦原为南方水生植物,喜高温,最适宜温度为24-27℃,在16-20℃时生长缓慢,12-15℃时仅能维持生命,在7℃以下就会死亡。去冬,河南省襄城县有24处搞了水浮莲和水葫芦越冬试验,11处获得成功。结果表明,温池越冬效果很好,但用煤较多,费用较大;温床盆养不用柴煤,既省钱,效果又好。自然池也能使水葫芦越冬。在安徽省枞阳县义津区,水葫芦能在水底越冬。温池越冬(一)温池建造温池要建在背风向阳处,池的上部结构大休和一面坡式育苗温室相同,屋顶分两部分,前坡下半部盖塑料薄膜,上覆草帘,以便晴天打开;上半部和后坡缮草保温。室内建两个水泥温池,一池养水浮莲,一池养水葫芦。池深8寸,池底抛土3寸,以利生根。每平方尺施马粪加人粪尿3-5两,不能过多,特别是不能混入油腥,否则会烂秧。池内开始放水0.5-1寸,到3-4月份水深可增加到2-3 Water hyacinth and water hyacinth was formerly the southern aquatic plants, like high temperature, the most suitable temperature is 24-27 ℃, slow growth at 16-20 ℃, 12-15 ℃ only life, below 7 ℃ will die . To winter, Xiangcheng County, Henan Province, 24 out of the water lily and water hyacinth winter test, 11 were successful. The results showed that the effect of overwintering warm pool is very good, but using more coal, the cost is larger; hotbed no need to use coal, not only save money, good effect. Natural pool can also make water hyacinth winter. Yiyang District, Zongyang County, Anhui Province, water hyacinth can overwinter at the bottom. Overwintering warm pool (a) the construction of the warm pool temperature leeward to build leeward, the pool of the upper structure of a break and the same type of slope greenhouse nursery, the roof is divided into two parts, the lower half of the front slope covered plastic film, covered with straw curtain , In order to open in sunny days; the upper half and the back slope to keep grass warm. Indoor built two warm pools of cement, a pool of water floating lotus, a pond water hyacinth. Pool depth 8 inches, throwing soil bottom 3 inches, to facilitate rooting. Per square foot of manure plus manure excretion 3-5 two, can not be too much, especially not mixed with oily, otherwise it will rot. The pool began to release water 0.5-1 inch, to 3-4 month water depth can be increased to 2-3