在农村,利用坑塘养鱼,具有肥料、青饲料来源丰富特点,适用发展以草食性和滤食性鱼类的养殖业。其养殖技术如下。1、坑塘备耕:选择坑塘面积不分大小,其蓄水够在1.5m以上,能排灌则可。在冬季整修坑塘,清除淤泥。可在开春时用生石灰每亩100kg进行消毒。2月份投施底肥,堆放于坑塘四 In rural areas, the use of pit pond fish, with fertilizers, rich sources of green fodder characteristics for the development of herbivorous and filter-feeding fish farming. The farming techniques are as follows. 1, pit pond preparation: Choose pit area regardless of size, the water enough for more than 1.5m, irrigation and drainage can be. In the winter renovation pit, clear the mud. Can be used in the spring lime 100kg per acre disinfection. Apply base fertilizer in February, stacked in pit four