But other species, like maples and birches and larches, combine a less extreme level of sugar in their leaves with the practice of going leafless during the winter to avoid foliar frostbite.

但是其他物种，例如枫树，桦树和落叶松，则将叶子中糖分含量水平，并在冬季采取不生叶做法，以避免叶面冻伤。

Fertilum all-purpose, water-soluble plant food works best when it's used both as a soil drench and dissolved as a foliar spray.

Fertilum 多用途水溶性植物营养素在作为土壤浸润剂和叶面喷施溶液使用时效果最佳。