【1000個園藝小知識】播種完，到底要不要給種子覆土呢？

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光照能影響種子發芽，比如有的種子必須見光才能發芽，這類就是喜光的，對光敏感的，像這類播種的時候只需要輕輕地把它放到土表，不需覆土。而另一種嫌光種子，必須在黑暗里才會發芽，所以播種時一定得埋入土內，才發芽。購買的種子需要注意哦~