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采用水培方法研究证明了氮素营养水平对匙叶天南星的生长及光合特性有很大影响。在本研究条件下 ,以植株生长量和观赏品质为衡量指标 ,最佳的氮素营养浓度为16mmol/L。叶片叶绿素荧光诱导动力学参数可以作为植物对营养环境适宜度的灵敏指标
The results of hydroponics showed that the level of nitrogen nutrition had a great influence on the growth and photosynthetic characteristics of southern spathula. Under the conditions of this study, the optimum nitrogen concentration was 16 mmol / L, which was measured by plant growth and ornamental quality. Chlorophyll fluorescence-induced kinetic parameters of leaves can be used as sensitive indices of plant suitability to nutrient environment