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Junko 发表于 2018-8-31 16:57 
层主上了不少鸡粪和缓释肥，就是不开，都两年没开了
这种DENDROBIUM NOBILE开花的要诀是入冬开始要1少水，2多晒太阳，3，停止一切肥。
缓释肥在冬天继续发挥作用，著名的DENDROBIUMBOBLE 培育专家YAMAMOTO在的网站
上特别提出不要用缓释肥。Slow-releasing fertilizers in pellets (e.g., Osmocote) are not good for flowering -size plants.以下是原文：
Poor flowering in spite of robust growth and the appearance of offshoots (keikis) is the most common problem with nobile-type dendrobiums. This can be solved by taking the following precautions:
Light and Air: Provide plenty of light to flowering-size plants. As long as there is good air circulation, they can be grown without shade even in summer. In Hawaii, plants are grown under full sun (no shading) with good results. If air circulation is poor, about 30-40% shade should be provided in July and August to prevent leaf burn. In any case, from September on, plants should be grown under full sun to produce strong canes and leaves and prepare for flowering.
Fertilizer: There are many types of orchid fertilizers. The most common cause of poor flowering in this type of Dendrobium is the accumulation of too much nitrogen. For flowering-size plants, use fertilizers with a low percentage of nitrogen. It is important to stop application of any fertilizer in the first part of August. Slow-releasing fertilizers in pellets (e.g., Osmocote) are not good for flowering -size plants.
Temperature: For differentiation of flower buds, it is important to expose plants to low temperature. Canes (pseudobulbs) which grew from spring through summer and have matured in the fall require approximately one month of low night temperatures. Therefore, in the autumn when it becomes cool, do not rush to bring your plants into the greenhouse, as with cattleyas. Leave them outside to cool, and they will bloom much better. |
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简单的幸福 — 美猫美狗篇 (2009-12-26) 微风细雨 
再见青春 (2011-10-28) 坏果子 
楼主:腾飞
发表于 2018-8-31 17:47
