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对当年生扦插小苗的管理 (1) 在没有霜冻、气温尚未下降到0℃时要去掉遮光网,打开塑料薄膜,让其直接接触阳光露水,能促进花苗的生长发育。当气温下降到0℃以下出现霜冻时,要把塑料薄膜遮盖起来防止霜冻损坏花苗。北方地区气温较低要采取更有效的保温措施,使棚内气温不低于-3℃,以保证花苗的安全过冬。
Management of the annual cuttage seedlings (1) in the absence of frost, the temperature has not dropped to 0 ℃ to remove the shading net, open the plastic film, let it directly contact the sun dew, can promote the growth of flower seedlings. When the temperature dropped below 0 ℃ frost, the plastic film to cover up to prevent frost damage flower seedlings. Lower temperatures in the northern region to take more effective insulation measures, so that shed temperature not lower than -3 ℃, in order to ensure the safety of flower seedlings over the winter.