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热区南酸枣、西南桦、团花、高阿丁枫、红木荷等阔叶树种的育苗基质和容器规格的第一阶段育苗试验结果表明 :不同的树种对育苗基质的要求不同。南酸枣和团花的苗木因生长快 ,对N、P、K、Ca、Mg等常量元素的需求大于其他树种 ,南酸枣对微量元素的需求也大于其他树种 ;热区阔叶树种对Fe、Mn、Cu等微量元素有较大的需求 ,而对Mo元素的需求相对较小。在 15cm× 17cm、 11cm× 15cm、 8cm× 15cm 3种规格的容器间 ,各树种苗高、地径生长无太大差别 ,因小容器所盛基质的总重量只是大容器的 1/ 3,中容器所盛基质的总重量是大容器的 1/ 2 ,因此 ,育苗生产中应选择中、小容器。第二阶段的试验结果表明 :西南桦工厂化育苗应选择 7cm× 8cm规格的容器 ,山桂花和红木荷可选择 4cm× 5cm规格的小孔容器。
The results of the first stage nursery experiments on nursery substrate and container specification of broadleaf tree species such as southern sweet potato, southwestern Betula platyphylla, Tissue, Alpine maple, mahogany and so on showed that different tree species have different requirements for nursery substrate. Due to the fast growth of the seedlings of S. chinensis and C. chinensis, the demand of N, P, K, Ca, Mg and other major elements was greater than that of other species. The demand of S. chinensis for trace elements was also greater than that of other species. , Cu and other trace elements have greater demand, while the demand for Mo is relatively small. In 15cm × 17cm, 11cm × 15cm, 8cm × 15cm 3 kinds of containers between the specifications, the tree seedling height, diameter growth is not much difference, because the total weight of the small container containing matrix is only 1/3 of the large container, The total weight of the medium contained in the container is 1/2 of the large container, therefore, medium and small containers should be selected in the seedling production. The second phase of the test results show that: Southwest birch factory nursery seedlings should choose the size of 7cm × 8cm container, Osmanthus fragrans and mahogany can choose 4cm × 5cm size hole container.