摘要
前期研究表明"5%空心菜+10%填料+泼藻"水质调控集成模式值得推广,为进一步验证效果,以吉富罗非鱼养殖池塘为对象,研究不同空心菜种植配比其对池塘水质氮、磷净化效果。通过设置5%、8%和10%空心菜种植比例,测定TN、NH;-N、TP、CODMn、TSS、p H和DO等水质指标,并进行环境、效益评估。结果表明:空心菜种植对罗非鱼池塘水体中TN、NH;-N、TP、CODMn、TSS均有一定程度的降低,空心菜种植对TN去除率在10%~15%之间,对TP去除率在20%~40%之间,5%空心菜种植组还对NH;-N、CODMn有较好的去除效果,且效益较好适合推广。
The preliminary study showed that the integrated mode for water quality control, named as“5%water spinach(Ipomoea aquatica Forsk.) + 10% filler + algae splashing(Chlorella pyrenoidose)”is worth popularizing. To further verify the effect, the purification effect of different water spinach planting ratios on nitrogen and phosphorus in pond water was studied. Water quality indexes, such as TN(total nitrogen), NH3-N(ammonia nitrogen), TP(total phosphorus), CODMn(permanganate), TSS(total suspended solid), pH and DO(dissolved oxygen), were determined by setting the planting proportion of 5%, 8% and 10% of water spinach,the environmental and economic benefits were also evaluated. The results showed that the TN, NH3-N, TP,CODMnand TSS in tilapia pond were reduced to a certain extent by the cultivation of water spinach. The removal rates of TN and TP were 10%-15% and 20%-40% respectively. The 5% water spinach planting group also had the good removal effect on NH3-N and CODMn, and the economic benefit of this mode was good, which was suitable for application.
作者
孙旋辉
蒋咏燚
刘文婷
郑尧
陈家长
邴旭文
Sun Xuanhui;Jiang Yongyi;Liu Wenting;Zheng Yao;Chen Jiazhang;Bing Xuwen(Freshwater Fisheries Research Center,Chinese Academy of Fishery Sciences,Wuxi Fishery College,Nanjing Agricultural University,Wuxi Jiangsu 214081)
出处
《中国农学通报》
2021年第33期148-152,共5页
Chinese Agricultural Science Bulletin
基金
国家重点研发计划项目“鱼-菜综合种养关键技术与高效利用模式示范”(2020YFD0900305)
现代农业产业技术体系专项“特色淡水鱼养殖水环境控制岗位科学家”(CARS-46)。
关键词
池塘水质调控
原位修复集成
中草药
鱼菜配比
营养盐去除效果
成本核算
pond water quality control
in-situ remediation integration
Chinese medical herb
fish-vegetable ratio
nutrient removal efficiency
cost accounting
