益阳县兰溪镇金塘村养鱼户阮放明,从1985年起承包一口水深2.5米、面积5.5亩的镇郊池塘养鱼,实行集约经营,年年获得高产、高效益。至1989年止,5年共产鲜鱼30149公斤,年平亩产鱼1096公斤;渔业纯收入50481元,年平每亩水面1835元。扣除上交,实得22031元。阮放明养鱼亩过吨的经验有以下四方面: 一、选放优良鱼种,合理密养、混养、根据池塘水深、肥料来源广的特点,以养鲢鱼为主,搭配鳙、鲤、草、鲫鱼。鱼种放塘时,选择体质健壮、鳞紧肌实、体色光洁、无病无伤的鱼种。每 Ryangan Ming, a fish farmer in Jintang Village, Lanxi Town, Yiyang County, contracted a pond with a depth of 2.5 meters and an area of ​​5.5 mu from 1985 to conduct intensive farming and obtain high yields and high returns every year. By 1989, the total output of fresh fish in the past five years was 30,149 kilograms, and the average annual output of mussels was 1,096 kilograms. The net income of fisheries was 50,481 yuan, an average annual water level of 1,835 yuan per mu. Deduct turned over, real 22031 yuan. Nguyen Thiamon fish over tons of experience in the following four areas: First, choose to put fine species of fish, reasonable close-care, polyculture, according to the pond depth, wide source of fertilizer characteristics to raise silver carp-based, Carp, grass, carp. When the species of ponds are put in ponds, they are selected for their sturdiness, tight scales, firm body color, and disease-free and harmless species. each