Influence of Soil Fertility on Angelica Quality and Yield

We studied the relationship between soil fertility indicator and angelica yield and quality by the methods of correlation analysis and path analysis. The results showed that, in Yunnan Province, the content of ferulic acid (major indicator of angelica quality) is 1.5-2.5 mg/g and single plant fresh weight (major indicator of yield) is 60-250 g. The content of angelica ferulic acid and angelica single plant fresh weight are positively correlated with the content of total N, quick-acting K, organic matter, whereas negatively correlated with the content of quick-acting P. It is shown that the most direct factor that influence the content of the angelica ferulic acid is the quick-acting K, and the least direct factor is organic matter; the most direct factor that influences the single plant fresh weight of angelica is the total N, while the least direct factor is the quick-acting P. In conclusion, the soil fertility indicators that have great influence on quality and yield of angelica are the quick-acting K, total N, quick-acting P and organic matter.

不同土壤肥力对当归品质和产量的影响

【目的】探索土壤肥力指标与当归品质和产量间的相互关系,为当归规范化种植提供理论依据。【方法】通过相关分析、通径分析对土壤肥力主要因子与当归品质和产量主要指标间相互关系进行分析。【结果】云南地区当归品质主要指标阿魏酸含量为1.56～2.42mg/g,产量主要指标单株鲜重为38.95～257.26g。当归阿魏酸含量、单株鲜重与土壤全N、速效K、有机质含量均呈正相关,与土壤速效P含量呈负相关。土壤肥力因子中对当归阿魏酸含量直接影响最大的是速效K,最小的是有机质;对当归单株鲜重影响最大的是全N,最小的是速效P。【结论】土壤肥力指标对当归品质及产量影响较大是速效K、全N,其次是速效P、有机质。