论文部分内容阅读
单纯依靠投喂商品饲料培养鱼种,不仅增加生产成本,而且对鱼种生长也不利。用种稗淹青法育鱼种,可从改善池塘的物质循环着手,提高饲养鱼种的能力和效益。 1.种植稗草 4月上中旬排干池水,沿池底四周挖排水浅沟,然后将稗草籽按每亩5～7公斤均匀撒播于湿润的池底,并用推耙轻轻推一遍,将稗草籽刮
Relying solely on feeding commercial fish feed species, not only increase production costs, but also detrimental to the growth of fish species. The use of barnyard grass drowned aquatic breeding species, from improving the material circulation of the pond to start to improve the ability of feeding fish and benefits. 1. Plant barnyard grass In mid-April, drain the water in the middle of the pond. Drain and drain the shallow ditch along the bottom of the pond. Spread the barnyardgrass seeds evenly on the wet bottom of the pond at the rate of 5-7 kg per acre and push it gently with a push rake. Will barnyard grass scraping