目的 研究稻草覆盖量对川芎Ligusticum chuanxiong生长发育、干物质积累及产量和品质的影响，为农业可持续发展及川芎生态种植提供理论依据和实践指导。方法 采取单因素随机区组设计，设置3个处理：不覆盖稻草、覆盖苓子、覆盖全厢面，测定并分析川芎的出苗率、形态指标、干物质积累、折干率、产量及化学成分含量，进行经济效益评价。结果 覆盖全厢面处理出苗率最高，达97.66%，与不覆盖稻草（94.05%）差异显著；覆盖苓子出苗率为96.68%，与不覆盖稻草和覆盖全厢面差异均不显著。稻草覆盖在多个生育期尤其是生长前期显著影响川芎株高，生长后期显著影响茎数、叶片数和根茎宽，对根茎长和根茎厚的影响未达显著水平；除倒苗期外，覆盖苓子和覆盖全厢面各生育期地上部干质量、地下部干质量和地下部折干率均高于不覆盖稻草。覆盖全厢面产量比覆盖苓子和不覆盖稻草分别高16.6%和41.6%，净收益分别高24.4%和68.3%。稻草覆盖处理提高了川芎阿魏酸、洋川芎内酯A、藁本内酯和总苯酞含量。结论 川芎种植厢面覆盖稻草促进了川芎的生长发育和干物质积累，提高了产量、品质和经济效益，覆盖全厢面处理效果优于仅覆盖苓子的传统方法。
Objective To study the effects of straw cover amount on growth and development, dry matter accumulation, yield and quality of Ligusticum chuanxiong, and provide theoretical basis and practical guidance for sustainable agricultural development and ecological planting of L. chuanxiong.Method Single-factor randomized block design was adopted, and three treatments including no straw cover, covering Lingzi, covering whole ridge were setted. The emergence rate, morphological indexes, dry matter accumulation, drying rate, yield and chemical components of L. Chuanxiong were determined and analyzed. Finally, the economic benefit was evaluated.Result Covering whole ridge treatment had the highest emergence rate reaching 97.66%, which was significantly higher than no straw cover treatment (94.05%). The emergence rate of covering Lingzi was 96.68%, which was not significantly different from other two treatments. Straw cover treatment had significant effects on plant height during multiple growth stages especially early growth stage, had significant effects on stem number, leaf number and rhizome width at late growth stage and no significant effect on rhizome length and rhizome thickness. Except for senescene period, the aboveground part dry weight, underground part dry weight and aboveground part drying rate of covering Lingzi and covering whole ridge were higher than those of no straw cover treatment at each growth stage. The yield of covering whole ridge was 16.6% and 41.6% higher than those of covering Lingzi and no straw cover respectively, and the net income was 24.4% and 68.3% higher than those of other two treatments respectively. Straw cover treatment increased the contents of ferulic acid, senkyunolide A, ligustilide, and total phthalides in the rhizome of L.chuanxiong.Conclusion Straw cover treatment of L. chuanxiong during planting period is conducive to promoting growth and development and dry matter accumulation of L. chuanxiong, and improving its yield, quality and economic benefits. The effect of covering whole ridge is superior to the traditional half-cover of covering Lingzi solely.