北方地区高密度养殖池塘栽植空心菜对养殖.pdfVIP

Open Journal of Fisheries Research 水产研究, 2017, 4(1), 16-24 Published Online March 2017 in Hans. /journal/ojfr /10.12677/ojfr.2017.41003 Effect of Mater Convolvulus on the Indicators of Water Quality in High Density Breeding Pond in the North * Guiliang Guo , Xianchun Yan, Lijun Yang, Yongbo Liu, Falin Pan, Cuihong Jiang, Tianhua Qi, Chang Liu Aquatic Products Quality and Safety Testing Center in Changchun City, Changchun Jilin th th st Received: Mar. 9 , 2017; accepted: Mar. 28 , 2017; published: Mar. 31 , 2017 Abstract Effects of mater convolvulus in the form of the floating floor on the indicators of water quality in high density breeding pond in the north were researched by transparency, dissolved oxygen, pH, ammonia nitrogen, nitrite nitrogen, total nitrogen, total phosphorus and potassium permanganate as the main water quality indicators. The results showed by tracing test that three trails of water convolvulus coverage rate of 0% (control), 8% and 15% in the form of the floating floor were im- plemented in high density breeding pond in the north. Transparency in ponds of planting water convolvulus was significantly higher than that of control pond, but ammonia nitrogen, nitrite ni- trogen, total nitrogen, total phosphorus was significantly lower, dissolved oxygen, pH, potassium permanganate was not significant, fish yield in test pond significantly increased. Research shows that it can play very good role in purifying aquaculture water for high density breeding pond in the north to plant mater convolvulus in the form of the floating floor and effectively improve the economic benefits of aquaculture. Keywords Cold Region in the Northern, High Density Aquaculture Ponds, Planting in the F