采用电感耦合等离子体发射光谱（ICP-OES）分析技术测定黄芩不同物候期（休眠期、 展叶期、 花期、 果实期和枯黄期）不同器官（根、 茎、 叶、 花果）中四种常见营养元素（Ca, Mg, P, K）的含量, 以探索随物候期的变化, 营养元素在不同器官中的配置规律。 结果发现, Ca, Mg, K元素在黄芩叶片的营养生长期的投资相对量较大, 主要用于促进叶片的光合作用, 合成大量的碳水化合物; P和K元素在生殖生长期生殖器官的投资比例明显高于营养器官, 有利于下一代的繁衍; 根中Ca, Mg, K元素的配置比例在枯黄期略有回升, 以增强黄芩耐寒过冬的能力。 本研究结果为黄芩种植的合理施肥提供实验数据。

To study the allocation rules of the nutrients in scutellaria baicalensis in different phenological periods, ICP-OES analytical technique was used to measure the contents of 4 elements （Ca, Mg, P and K） in roots, stems, leaves, flowers and fruids in different phenological periods（such as dormancy period, leaf expansion period, blooming period, fruit maturation period and yellow period） simultaneously. The results indicated that the allocation of Ca, Mg and K in leaves was higher than in the other organs in the vegetative stage, in order to stimulate photosynthesis and generate abundant carbohydrate; there was a larger proportion of P and K in reproductive organ compared with vegetative ones in reproductive stage, and it was beneficial to multiplication, and in yellow period the percentages of Ca, Mg, and K in roots rose slightly to strengthen cold-resistant ability. This study results can help develop scientific and rational fertilization programmes for the cultivation of scutellaria baicalensis.