Yuan Xiao-Qian, Guo Qiao-Sheng, Wang Chang-Lin, Xu Yang-Fei, Wei Yu
Institute of Chinese Medicinal Materials,Nanjing Agricultural University Nanjing 210095,China.
Zhongguo Zhong Yao Za Zhi. 2019 Aug;44(15):3246-3252. doi: 10.19540/j.cnki.cjcmm.20190527.107.
Inula japonica was used as the research object, "3414" fertilization experiment were conducted to study the effects of nitrogen,phosphorus and potassium formula fertilizer on the growth and chemical composition content of I. japonica. The characteristics of fertilizer requirement were preliminarily revealed and the study provided fertilization guidance for artificial cultivation of I. japonica. The results showed that different nitrogen,phosphorus and potassium formula fertilizers had significant effects on plant morphology,physiological and biochemical indexes,dry matter accumulation and chemical composition content. The growth indexes and chemical components of I. japonica showed an upward trend with the increase of fertilization amount,especially the nitrogen fertilizer was the most significant. The indicators were analyzed by membership function. After comprehensive evaluation,the optimal nitrogen,phosphorus and potassium formula fertilization level was N3 P2 K2,namely high level nitrogen fertilizer,medium level phosphorus fertilizer and potassium fertilizer. I. japonica is a high fertilizer demand plant,and the rational fertilization scheme is " applying nitrogen fertilizer again and applying phosphorus and potassium fertilizer properly".
以旋覆花为研究对象，进行“3414”施肥试验，研究氮、磷、钾配方肥料对旋覆花生长及化学成分含量的影响。初步揭示了旋覆花的需肥特性，为旋覆花人工栽培提供施肥指导。结果表明，不同氮、磷、钾配方肥料对植株形态、生理生化指标、干物质积累及化学成分含量均有显著影响。旋覆花的生长指标和化学成分随施肥量增加呈上升趋势，其中氮肥影响最为显著。采用隶属函数法对各指标进行分析，综合评价得出旋覆花最佳氮、磷、钾配方施肥水平为N3P2K2，即高氮、中磷、中钾。旋覆花是需肥量较大的植物，合理施肥方案为“重施氮肥，适量施用磷钾肥”。
