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养殖水质的好坏,主要看以下几个水质指标:氨态氮、亚硝态氮、硝态氮、pH值、化学耗氧量、硫化氢等七个指标。水产养殖水体中,如何让含氮有机物进行有效的转化,以确保养殖水质长期维持良好,是养殖成功的关键之一。养殖水体中的含氮有机物,在水体中先转为氨态氮,再转为亚硝态氮,最后为硝态氮。转化过程中,从含氮有机物到氨氮需要的时间不长,从氨态氮到亚硝酸盐的时间较短,但从亚硝酸盐的转化时间比较长。
Aquaculture water quality is good or bad, mainly to see the following water quality indicators: ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, pH, chemical oxygen demand, hydrogen sulfide and other seven indicators. In aquaculture water, it is one of the keys to the success of aquaculture that how to effectively convert nitrogen-containing organic compounds to ensure long-term good quality of aquaculture water. Aquaculture water nitrogen-containing organic matter, in the water first converted to ammonia nitrogen, and then converted to nitrite, and finally to nitrate nitrogen. In the conversion process, the time required for nitrogen-containing organic matter to ammonia nitrogen is not long, and the time from ammonia nitrogen to nitrite is short, but the conversion time from nitrite is relatively long.