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5月上旬,冀西北张家口市的天气乍暖还寒,倒春寒、低温寡照天气时有发生,对棚室黄瓜生长极为不利,但部分菜农往往对此重视不够,因麻痹大意或疏忽而造成损失。2015年5月1日—8日全市低温寡照,气温比常年普遍偏低2℃,9日—11日受高空冷涡影响,气温明显下降2—3℃,在此期间部分冀西北棚室黄瓜遭受了短期低温伤害或寒害,使黄瓜采摘期缩短7天左右,产量和收入都受到了影响。现将冀西北棚室黄瓜
In early May, the weather in Zhangjiakou, northwestern Hebei Province turned into warm and cold again. In late spring, low-temperature and low-temperature weather sometimes took place. It was extremely unfavorable to the growth of greenhouse cucumbers. However, some vegetable farmers often paid insufficient attention to this and caused losses due to negligence or carelessness. From May 1 to May 8, 2015, the municipality’s low-temperature and low-temperature photographs show that the temperature is generally 2 ℃ lower than that of normal years and affected by the cold eddy of the upper air on the 9th and the 11th. The temperature dropped obviously by 2-3 ℃. During this period, Short-term cold damage or chilling injury, the cucumber picking period shortened about 7 days, production and income have been affected. Northwest Hebei will now cucumber