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一、越冬前,要适当在越冬池内投入畜禽粪(堆积发酵者最好)。一般每亩施入100～200公斤左右。二、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。三、尽量缩短冰封期。冰封前要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,尽量保持池内水的温度,延长推迟结冰的时间。开春
First, before the winter, it is appropriate to put livestock and poultry manure in the winter pool (accumulation of fermentors best). Generally applied to 100 ~ 200 kg per mu. Second, before winter, fish ponds must be filled with enough water, and carefully check the water inlet and drainage channels to prevent clogging to ensure smooth flow. Third, try to shorten the ice period. According to the source water temperature and the water temperature in the fish pond before freezing, the time of irrigation and drainage should be determined, the temperature of the water in the pond should be kept as long as possible to prolong the time of delaying freezing. Spring