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在冬春季节,连阴、雨、雪天较为常见,对日光温室蔬菜生产是一种灾害性天气。若管理措施跟不上,常会造成较大的经济损失,因此,在遇到连阴、雨、雪天时,应从以下几方面加强管理,尽量把灾害性天气的不利影响降低到最小。1.增加光照许多菜农朋友为了防止日光温室内气温下降,连续数日不揭草苫等物,这样做反而对蔬菜生长发育不利。每天只要天气条件许可(不是刮大风,或下雨雪天),在中午前后,把草苫等物卷起,或把草苫下部卷起,使棚内蔬菜见光;揭开草苫后,只要棚温不下降,可适当推迟盖草苫的时间。同时,应每天清扫棚膜上的灰尘草屑等杂物,用布擦去棚膜内侧的水珠。以增加棚膜的透
In winter and spring, even the yin, rain and snow days are more common and vegetable production in solar greenhouse is a disastrous weather. If management measures can not keep up, it will often cause great economic losses. Therefore, in the event of continuous overcast, rainy or snowy weather, management should be strengthened in the following aspects to minimize the adverse impact of disastrous weather. 1. To increase the light Many friends of vegetable farmers in order to prevent the temperature drop in the greenhouse, for several days not to expose the grass and other objects, but on the contrary growth and development of vegetables adversely. Every day as long as the weather conditions permit (not windy, or rain and snow), around noon, the grass curling and other things rolled up, or the lower part of the lawn rolled up, so that the shed vegetables see light; opened the lawn, As long as the shed temperature does not decline, may be appropriate to postpone cover Cassia time. At the same time, daily cleaning dust film on the greenhouse film and other debris, wipe the film with a cloth inside the water drops. To increase the transparency of the film