Application of syringic acid in promoting tobacco root growth

According to the application of syringic acid in promoting plant root growth, the syringic acid compound provided by the invention can integrate multiple functions of urease inhibition, nitrification inhibition and plant growth promotion, and the integration of the functions is realized. The syringic acid not only can improve the nitrogen fertilizer utilization rate and reduce the nitrogen loss by regulating the activity of soil microorganisms, but also can directly promote the growth of main roots of tobacco seedlings and increase the number of primary lateral roots. The syringic acid can replace addition of various synergists/irritants in development of novel green nitrogen fertilizer products, and the possibility of reducing energy consumption and cost is provided. 丁香酸在促进植物根系生长中的应用，本发明提供的丁香酸化合物能集脲酶抑制、硝化抑制及植物生长促进多功能于一体，实现了作用的综合化。丁香酸不仅能通过调控土壤微生物活性而提高氮肥利用率和减少氮素损失，还可以直接促进烟苗主根生长和增加一级侧根数量。这为丁香酸在新型绿色氮肥产品开发中代替多种增效剂/刺激剂添加，减少能耗和成本提供了可能。