1适量施肥越冬前在越冬池投入畜禽(堆积发酵者最好)。一般每667m2施入100￣200kg。2灌足越冬水越冬前必须在鱼池内灌足水,并认真检查好进水排水的渠道,严防堵塞,确保其畅通。3缩短冰封期冰封期根据水源、水温和鱼池内水温的高低,确定灌水与排水的时间,保持池内水温稳定,推迟结 A proper amount of fertilizer before winter in the winter pond into livestock and poultry (stacked fermentation best). General per 667m2 applied to 100 ~ 200kg. 2 filling enough winter wintering water before winter must be filled with enough water in the fish ponds, and carefully check the water intake and drainage channels to prevent clogging to ensure its smooth. 3 to shorten the ice-free period ice seal According to the water source, water temperature and fish ponds in the water temperature, irrigation and drainage to determine the time to maintain a stable water temperature in the pool, postpone the knot