论文部分内容阅读
气温降到10℃以下时,将养殖池的水位提高到30～50厘米,保证冬季池底水温在0℃以上。越冬期间切莫随意拉动水草和搅动水体。池塘结冰时要及时破冰。也可在冬季来临前排干池水,保证底泥湿润,在底泥表面覆盖一层稻草、麦秸或玉米秸秆,厚度20～30厘米,也能安全越冬。有条件的养殖户可采用塑料大棚越冬。冬天水温低于12℃时,适当提高池塘水位,保持棚内气温在2～8℃。每天中午温度最高时把大棚的通风孔打开通风。
When the temperature drops below 10 ℃, raise the water level of aquaculture pond to 30-50 centimeters, and ensure that the water temperature at the bottom of winter pool is above 0 ℃. Do not pull the plants and agitate the water during winter. Pond ice breaking in time. Can also be drained in the winter before the water pool to ensure that the sediment moist, the surface of the sediment covered with a layer of straw, straw or corn stalks, the thickness of 20 to 30 cm, but also safe wintering. Conditional farmers can use plastic greenhouses wintering. When the winter water temperature is lower than 12 ℃, raise the water level of the pond appropriately and keep the temperature in the shed at 2 ~ 8 ℃. Ventilate the vents in the greenhouse open at the highest temperature at noon each day.