利用种植水芹的池塘,放养一定数量鱼种、小龙虾(即螯虾),既不改变原养殖条件,也不影响水芹的生长,根据水芹塘口的特殊性,将养殖业与种植业有机结合,使鱼、虾、水芹共生互补,促进池塘生态系统良性循环,提高单位面积效益,一般667平方米产成鱼300千克、 The use of planting cress ponds, stocking a certain number of species of crayfish (crayfish), neither change the original breeding conditions, does not affect the growth of cress, cotatus pond according to the special nature of the farming and planting The combination of industry, so that fish, shrimp, cress symbiotic complement each other to promote a virtuous cycle of pond ecosystems to improve the efficiency of the unit area, generally 667 square meters into a fish 300 kg,