闭环型鱼菜共生系统模式探讨

为了研究闭环型鱼菜共生生产系统模式中合适的鱼菜比例,进行了罗非鱼养殖和搭配生菜种植试验。设置3种鱼菜比例(1∶4、1∶8、1∶12),分别调查共生系统环境情况、生菜种植情况和罗非鱼的养殖情况。结果表明:罗非鱼(条)和生菜(棵)的比例为1∶8比较适合落地式鱼菜共生系统正常运行;此比例下,种植的生菜叶色深绿、总产量最高,养殖的鱼生长速度快、总质量高,同时死鱼率低,是较合适的鱼菜比例。

Study on Closed-loop Fish-vegetable Symbiosis System Mode

Abstract: In order to study the proportion of fish and vegetable suitable for the closed-loop fishvegetable symbiotic production system, tilapia cultivation matching lettuce cultivation experiments were carried out. The symbiotic system environment situation, lettuce planting and tilapia breeding conditions were investigated by setting three proportion of tilapia and lettuce which were 1:4, 1:8 and 1:12 respectively. The results showed that when the proportion of tilapia (strip) and lettuce (tree) was 1:8, it was more suitable for the normal operation of the fl oor-standing fi sh and vegetable symbiotic system. At this proportion , the lettuce leaves were dark green and the total yield was the highest. The cultured fi sh grew fast, the weight was high, and the dead fi sh rate was low, which was a suitable proportion of fi sh and vegetable.