摘要
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 experimentation results of seedling medium and container size of several tropical hardwood species including Choerospondias axillaries, Betula alnoides,Anthocephalus chinensis,Altingia excelsa and Schima wallichii etc. show that different species has different requirement for seedling medium. Choerospondias axillaries and Anthocephalus chinensis has bigger requirement for N, P, K, Ca and Mg comparing with other tested species. Choerospondias axillaries'requirement for microelements is also higher than other species. Among the microelements, tested species have bigger requirements on Fe, Mn and Cu than Mo. Among the tested three container size, 15 cm×17 cm, 11 cm×15 cm and 8 cm×15 cm, there is no significant differences in seedling height and base diameter. The medium weight of small container is only one third of big container, while that of middle-size container is half of big container, therefore it is suggested to use middle-size and small container. The results of further experimentation show that the suggested container for Betula alnoides was 7 cm×8 cm, and the suggested container for Paramichelia baillonii and Schima wallichii was 4 cm×5 cm.
出处
《云南林业科技》
2003年第4期19-23,28,共6页
Yunnan Forestry Science and Technology
基金
国际热带木材组织 (ITTO)资助项目
关键词
云南
热区
阔叶树种
育苗基质
容器规格
tropical hardwood forest
seedling medium
container standard
