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合欢,目前用于园林绿化的品种有两种,即金合欢、银合欢。树冠开阔,枝粗叶茂。花紫红或淡红色,盛开满树,引人注目。其苗木十分抢手。但由于采取陈旧的育苗方法,收效甚低。我们采用温水浸种、沙藏催芽法育苗,大大提高了种子出苗率,出苗率由原来50％提高到65％。并采取带胚根芽苗移植法,成苗率由原来的40％,提高到60％～75％。其方法介绍如下: 种子在3月上中旬用5～55℃的温水浸泡2小时,然后换水2次,再用清水浸泡24小时。用广德产建筑砂拌均和。并保持一定的湿润度,进行沙藏催芽2周左右。等种子长出胚根,即可进行移苗。 具体技术要求: 1 种子处理
Acacia, currently used for landscaping in two varieties, namely Acacia, Acacia. Crown open, thick branches. Flowers purple or pink, full of trees, attracting attention. Its seedlings are very popular. However, due to the old method of nursery, the effect is very low. We use warm water soaking seedlings, sand reservoir germination method, greatly increased the seed germination rate, the emergence rate increased from 50% to 65%. And to take the radicle seedling transplant method, the seedling rate from the original 40%, increased to 60% to 75%. The method described as follows: Seeds in mid-March with 5 ~ 55 ℃ warm water soak 2 hours, then change the water 2 times, then soaked in water for 24 hours. Guangde production of sand mixed with construction and. And maintain a certain degree of moisture, sand storage for about 2 weeks. Seed and other seeds grow radish, you can move seedlings. Specific technical requirements: 1 seed treatment