基于网状Meta分析施肥对甘草生长与品质的影响OA

In order to solve the problem of overgrowth and quality decline of licorice caused by unreasonable fertilization,this study systematically explored the effects of fertilization on the growth and quality of licorice by bibliometrics combining with network Meta-analysis,and analyzed the mechanism of action from the perspective of multi-omics and microorganisms.The literature regarding randomized controlled trials on the effects of different fertilization methods on the yield and quality of licorice were systematically searched in CNKI,Wanfang Data Knowledge Service Platform,Web of Science and PubMed database until September 2024.Through the screening of research types,research objects,interventions,outcome indicators and other research contents,10 literatures that met the criteria were finally included.Web Plot Digitizer,RevMan 5.3,Stata 14.0 and other software were used to extract the data and perform network Meta-analysis.The effects of different fertilization types,ratios and time on the yield,glycyrrhizic acid,liquiritin content and plant height of licorice were evaluated.By analyzing the literature,it was found that N-P compound fertilizer had the best effect on increasing the yield of licorice.The N-P-K compound fertilizer had the best performance in increasing the content of glycyrrhizic acid and liquiritin and promoting the growth of plant height,and the best ratio was 1:0.99:0.64;fertilization in June had the most significant effect on plant height.In summary,fertilization affected the yield and quality of licorice by regulating the activities of key enzymes such as reductase(HMGR)and farnesyl pyrophosphate synthase(FPS),triterpenoid and flavonoid synthesis pathways,and rhizosphere microbial community structure.This study clarified the optimal fertilization scheme for high quality and high yield production of licorice,and provided scientific basis and technical support for standardized cultivation of licorice.