背景:在世界许多地区,兰花在没有土壤的情况下生长,但是缺乏研究来定义其栽培的平衡和充足的营养液,主要在营养生长阶段。因此,本文旨在根据Hoagland和Arnon(1950)在能够增加养分含量的营养生长阶段的建议,评估营养液的最佳浓度,增长,以及铁皮石斛和蝴蝶兰的干物质生产。此外,本文旨在从这些兰花物种的干物质中的最佳养分含量中估算一种新的营养液,以用于营养生长阶段。
结果:营养成分,增长,随着D.TubtimSiam和P.TaisucoSwan的营养液浓度增加到平均浓度62%和77%,分别。我们发现Hoagland和Arnon溶液提供了一组营养素,其浓度高于P.TaisucoSwan的要求(氮,荧光粉,钙,和硫)和D.TubtimSiam(荧光粉,钙,镁,和硫),虽然溶液中的其他营养素不能满足这些兰花物种的营养需求,在营养生长阶段诱导营养失衡。
结论:我们得出的结论是,使用专门为营养生长中的每种兰花物种创建的平衡营养液,可能会通过优化生长培养基中养分的使用来促进其可持续栽培。
BACKGROUND: Orchids are grown without soil in many regions of the world, but there is a lack of studies to define the balanced and adequate nutrient solution for their cultivation, mainly in the vegetative growth phase. Therefore, this paper aims to evaluate the optimal concentration of the nutrient solution based on the proposal by Hoagland and Arnon (1950) in the vegetative growth phase capable of increasing the nutrient contents, growth, and dry matter production of Dendrobium Tubtim Siam and Phalaenopsis Taisuco Swan. In addition, this paper aims to estimate a new nutrient solution from the optimal nutrient contents in the dry matter of these orchid species to be used in the vegetative growth phase.
RESULTS: Nutrient contents, growth, and dry matter production increased as the nutrient solution concentration increased up to an average concentration of 62 and 77% for D. Tubtim Siam and P. Taisuco Swan, respectively. We found that the Hoagland and Arnon solution presented a group of nutrients with concentrations above the requirement for P. Taisuco Swan (nitrogen, phosphor, calcium, and sulfur) and D. Tubtim Siam (phosphor, calcium, magnesium, and sulfur), while other nutrients in the solution did not meet the nutritional demand of these orchid species, inducing nutritional imbalance in the vegetative growth phase.
CONCLUSIONS: We conclude that using a balanced nutrient solution created specifically for each orchid species in vegetative growth might favor their sustainable cultivation by optimizing the use of nutrients in the growing medium.