【目的】研究不同施肥配比下任豆 Zenia insignis 苗高、地径、生物量、叶面积及叶绿素含量等特征的变化，找出最优配方施肥的方案.【方法】通过正交试验设计对任豆容器苗进行氮、磷、钾配比施肥试验.【结果和结论】施肥对苗木生长有促进作用，不同营养元素及其配比对任豆苗木的影响效果不同.N4P4K2 和 N3P4K3 处理对苗高和地径有较大的促进作用，分别比对照增长了251.99%和214.75%，N2P4K1 处理时总生物量最大，比对照增加了298.03%.氮对任豆苗木生长影响最大，其次是磷，合理的氮、磷配比可有效提高任豆苗木的质量.
【Objective】Changes of seeding height, ground diameter, biomass, leaf area and chlorophyll content in different proportions of fertilizers were investigated to find out the optimum fertilization scheme. 【Method】Through orthogonal experimental design, experiments of N, P, K fertilization were carried out in container seedlings of Zenia insignis.【Result and conclusion】Fertilization could promote the growth of seedlings and different nutrient elements, and their ratios had a different influence on the growth of seedlings. The treatment of N4P4K2 and N3P4K3 played a greater role in promoting the growth of seedling height and ground diameter. Compared with the control group, it increased by 251.99% and 214.75%, respectively. Total biomass reached the maximum in the treatment of N2P4K1, increasing 298.03% compared with the control group. N is the biggest influence on the growth of Z. insignis seedling, followed by P. Reasonable ratio of N and P, which can effectively improve the quality of Z. insignis seedlings.