海南省地处热带地区，常年气温较高，因此比较适合进行罗氏沼虾的反季节养殖。一般是１０月下旬开始放苗，养至春节前后开始收获，大规格虾可到五六月份上市，此时上市的虾较少，价格高，因此效益比常规季节养殖的虾高。一、清塘及准备工作１．清塘池塘从夏秋季清理出来曝晒１ Hainan Province is located in the tropics, the perennial temperatures are higher, so it is more suitable for Macrobrachium rosenbergii season breeding. It is generally the beginning of late October Fangmiao, raising before and after the Spring Festival began to harvest, large-size shrimp can be listed in May and June, this time less shrimp listing, the price is high, so the benefits of shrimp farming than the regular season high. First, clear pond and preparation 1. Clear ponds cleaned from the summer and autumn exposure 1