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1986年上海市郊区蔬菜月平均上市量的统计,有两次上市量不足的时期。2月是冬淡季,强寒流出现的早晚,影响淡季的开始时间。8、9月为夏淡季,受高温影响,出现蔬菜供应不足,所以要改善蔬菜供应情况,必须解决冬、夏两季蔬菜淡季问题。由于夏季灾害性天气较多,病虫害较严重,蔬菜种类少及价格等原因,夏淡季要比冬淡季严重,必须重点加以解决。
Statistics on the monthly average amount of vegetables listed in the suburbs of Shanghai in 1986 showed a period of insufficient listing twice. February is the winter off-season, the emergence of strong cold sooner or later, the impact of off-season start time. August and September are summer and winter, affected by high temperature. There is insufficient supply of vegetables. Therefore, in order to improve the supply of vegetables, we must solve the problem of vegetable off-season in winter and summer. Due to more summer disastrous weather, more pests and diseases, fewer types of vegetables and prices, the summer off-season is worse than the winter off-season and must be resolved emphatically.