1.光照。冬季的光照强度和时数已明显不足,且为了保温,温室覆盖物还要晚揭、早盖,大大减少了透入棚内的光量和光照时数,成为冬季番茄落花落果的主要原因之一。解决的办法是,温室的覆盖物要尽量早揭晚盖,还可在棚室内每隔3m 安装 Light Winter light intensity and the number of hours has been significantly less than, and in order to heat preservation, greenhouse coverings should also be late exposure, early cover, greatly reducing the amount of light into the shed and the number of hours of light, become the winter fall drop fruit one of the main reasons . The solution is that the greenhouse cover to expose the late cover as soon as possible, but also installed in the studio every 3m