论文部分内容阅读
自贡市养鱼专业户张泽君,承包池塘养鱼,成鱼亩产超千斤,年收入上万元。其经验是:1.选塘改塘。养鱼塘应是东西方向的长方形,面积以5～10亩为宜。要清除鱼塘周围的杂草、垃圾和塘底过多的污泥,水深要保持在2.5米以上。同时,水源要充足,水质要良好,进、排水设施要配套,能排能灌。2.投放大规格鱼种。要缩短养殖周期,做到当年放鱼种,当年见成效。因此,投放的鱼种规格要大,鲤、鲫鱼种要求2～3寸,草、鲢鱼种要求4～5寸。
Zigong fish farming households Zhangze Jun, contracting pond fish, fish mu per kilogram, the annual income of 10,000 yuan. The experience is: 1. Tong Tong Tong. Fishpond should be a rectangular east-west direction, an area of 5 to 10 acres is appropriate. To clear the weeds around ponds, garbage and ponds too much sludge, water depth should be maintained at 2.5 meters. At the same time, water should be adequate, water quality should be good, into the drainage facilities to be supporting, to row irrigation. 2. Put large-scale species of fish. To shorten the breeding cycle, so that fish species, then see the results. Therefore, the size of the species to be large, carp, carp species require 2 to 3 inches, grass, silver carp species require 4 to 5 inches.