垅栽稻萍鱼立体种养是垄面种稻,水面养萍,水中养鱼的一种优化结构,湖南省1988年推广10余万亩。平均亩产辐谷886.1kg,鲜萍4509kg,鲜鱼56.5kg。其技术要点为:(1)垄沟比例,在鱼凼面积占总面积5—8％的前提下,以垄宽52.8—105,6cm,沟宽39.6一46.2cm为宜。(2)化肥一次全层基施,减轻化肥对萍和鱼的伤害。(3)红萍养殖,早春放耐寒绿 垅 planted rice Pingyang three-dimensional planting and breeding is the ridge of rice, surface waterping, fish in an optimized structure of water, Hunan Province in 1988 to promote more than 10 acres. The average yield Wugu 886.1kg, Xianping 4509kg, fresh fish 56.5kg. The technical points are as follows: (1) The proportion of furrows and furrows is 52.8-105,6cm in width and 39.6 to 46.2cm in width in the condition that the area of ​​the fish market is 5-8% of the total. (2) A full-scale chemical fertilizer base facilities to reduce the damage of fertilizer and Ping fish. (3) red duckweed, put cold hardy green in early spring