Abstract

Nutritional requirement of orchids is similar to other plants. Still, being mostly epiphytic, they have special mechanisms by which they can survive in limited nutrient condition without showing any deficiency symptom. Also because of their epiphytic nature, domesticating them as a pot plant is quite challenging. Nutritional management in orchids is more complicated than any other agri-horticultural crops. For orchids, water-soluble nutrients are applied in solution form, at a regular interval at once or twice a week. Unlike other crops, basal application or two to three split application of nutrients are not recommended for orchids. Studies conducted throughout the world show N, P and K play a significant role for successful orchid growing. Most of the orchid nutritional study in the world had considered N, P and K as the key elements of study. There are several reports on the benefit of the integrated application of organic and inorganic nutrients to the orchids.

摘要

兰花的营养需求与其他植物相似。尽管如此，它们大多是附生的，它们具有特殊的机制，可以在有限的营养条件下生存而不会表现出任何缺乏症状。同样由于它们的附生特性，将它们驯化为盆栽植物也颇具挑战性。兰花的营养管理比任何其他农业园艺作物都要复杂。对于兰花，水溶性养分以溶液形式施用，每周一次或两次定期进行。与其他农作物不同，兰花不建议基础施肥或二至三分裂养分施肥。全世界进行的研究表明，氮，磷和钾对兰花的成功生长起着重要作用。世界上大多数兰花营养研究都把氮，磷和钾视为研究的关键要素。