1.适时揭盖草苫和棉被。在温度允许情况下尽量早揭和晚盖草苫和棉被(包括各种大棚保温设施)。揭草苫时间应以揭开草苫后温室内温度不下降为宜，盖草苫时间应根据季节和室内温度而定，最低气温在0℃～-15℃季节，应在日光温室内温度降至15℃～17℃时盖草苫；最低气温在-15℃以下季节，应在日光温室内温度降至17℃～19℃时盖草苫。保温不良的日光温室应更早盖草苫。晴天，草苫要早揭晚盖，尽量延长蔬菜见光时间；阴雪天，根据外界温度状况可在中午短时间揭开草苫，使蔬菜接受散射光照射，不能连续数日不揭开草苫。连续阴雪天气后骤然转晴，要注意采取间隔、交替揭苫，不能立即全部揭开草苫，以防作物叶片在强光下失水萎蔫。若发现叶片萎蔫应及时回盖草苫，待植株恢复后再逐步揭苫。
Peel off the hay and the quilt. As early as possible in temperature permitting, cover and cotton (including various shelter and insulation). Jie CaoShan time should be to uncover CaoShan within the greenhouse temperature is not advisable, cover CaoShan time should be according to the season and the indoor temperature, minimum temperature at 0 ℃ ~ 15 ℃ is seasonal, should be within the greenhouse temperature dropped to 15 ℃ ~ 17 ℃ when CaoShan; Lowest temperature below 15 ℃ is seasonal, should be within the greenhouse temperature dropped to 17 ℃ ~ 19 ℃ when CaoShan. The heat-trapping solar greenhouse should be covered earlier. On a sunny day, the grass is on the way to get off the cover early, and try to keep the vegetables as long as possible. In Yin and snow, it is possible to open the grass in the middle of the day, depending on the temperature of the outside world, so that the vegetables are exposed to the scattered light and can not be unsolved for several days. After continuous overcast weather snow suddenly clears, attention should be paid to adopting interval, jie Shan alternately, not immediately reveal all CaoShan, in case of crop leaf wilting under strong light fluid loss. If the leaves are found to be wilted, they should be covered in time.
2.注意科学施肥灌水。冬季要严格控制浇水，在外界最低气温-15℃以下的季节，一般尽量不浇水。应在最低气温-10℃以上季节选择晴天浇透水，覆盖地膜保墒。如果蔬菜表现缺水时，应选寒流刚过，天气晴朗的好天，采用膜下滴灌或膜下浇小水，以免降低地温。深冬季节日光温室内地气温均较低，蔬菜根系吸收能力弱且生长发育缓慢，应尽量少进行土壤追肥；但可适当进行叶面追肥，以缓解由于低温寡照导致蔬菜生长发育不良，一般可叶面喷施0.3%磷酸二氢钾加0.3%硝酸钙、1%的葡萄糖液。冬末初春天气转暖后，适当增加浇水和施肥次数。
Pay attention to the scientific fertilization and irrigation. Winter we will strictly control water, to the lowest temperature 15 ℃ the following season, generally do not water. Should be at the lowest temperature - 10 ℃ above season choose clear water flooding, covering membrane keep moisture. If the vegetable shows water shortage, should choose cold flow just, the good day that the weather is clear, take under the membrane drip irrigation or the film water small water, lest reduce ground temperature. In winter and winter, the temperature of the sun's greenhouse is low, the root system of the vegetable is weak and the growth is slow, and the soil is to be taken as little as possible. Foliar fertilizer, but can be appropriate to alleviate vegetable growth, due to low temperature according to the general foliar spraying 0.3% potassium dihydrogen phosphate and calcium nitrate, 0.3% and 1% glucose solution. The amount of water and fertilizer should be increased appropriately after the warm weather in late winter and early spring.
3.加强控湿防病。深冬或持续低温雨雪天气，温室内空气湿度大，易诱发病害，应在中午短时间通风排湿，控制病害发生；特别注意室内15℃～25℃温度范围空气相对湿度控制在90%以下。发病后可选用烟雾剂、粉尘剂防治，以利于均匀施药和避免温室内空气湿度过高。
Strengthen the control of moistureproof. Deep winter or persistent low temperature rain snow, the air humidity in the greenhouse is large, the cause of disease is easily induced disease, should be ventilated in a short time at noon, control the disease occurrence; Pay special attention to indoor temperature 15 ℃ to 25 ℃ range air relative humidity control under 90%. After the disease, can choose smoke agent, dust agent to prevent and control, in order to benefit even the medicine and avoid the air humidity in the greenhouse is too high.
4.适当控制结果数量。持续低温雨雪天气，植株生长发育弱，要及早采收果实和适当疏花疏果，以免加重植株负担，使植株生育更弱，降低抗逆能力。天晴后，逐步转入正常管理。
Control the number of results appropriately. Continuous low temperature rain and snow weather, poor plant growth and development, to early harvest fruit and hydrophobic flower thinning, appropriate to plant burden, make plant reproductive weaker, lower resilience. After the weather clears, gradually move to normal management.
