腐殖酸类有机肥对当归物质生产及品质的影响

Influence of humic acid fertilizer on biomass accumulation and quality of Angelica sinensis

目的:研究成药期追施腐殖酸类有机肥对当归生长、同化基础、干物质积累、产量、品质及感病情况的影响。方法:试验选择3种腐殖酸肥和1种氨基酸液肥,采用1水平随机区组设计,3次重复。结果:追施T1"陕西济农",促进当归地上、地下生长,提高干物质积累,能显著增加当归单根鲜重,增产605kg.hm-2,醇溶性浸出物含量提高11.31%,综合效果最好。追施T3"甘肃猛冲"能迅速促进当归地上、地下生长,扩大叶面积及提高地上部干重,肥力显效快,但肥效持续期短,醇溶性浸出物含量提高5.23%。追施T4"云南生态"后期叶片数较多,叶面积较大,增产565 kg.hm-2,醇溶性浸出物含量提高3.09%。追施T2"甘肃绿能"能显著提高单根鲜重,增产588 kg.hm-2。结论:追施腐殖酸类有机肥能有效促进成药期当归生长,扩大同化基础,提高叶面积指数,促进干物质积累及向根部转移,有效提高产量和醇溶性浸出物含量。

Objective： To study the influence of humic acid fertilizer on plant growth, assimilation base, dried biomass accumulation, yield, quality and disease infection of Angelica sinensis. Method： Three kinds of humic acid fertilizer and an amino acid liquid fertilizer were tested in randomized groups at 1 level with 3 times repeat. Result： T1 promoted plant and root growth effectively, increased dried biomass accumulation and fresh root average weight remarkably, the yield was increased, the content of ethanol extract was increased by 11.31%. T3 promoted plant and root growth quickly, enlarged leaves area and increased dried plant weight, but effect lasted shortly, the content of ethanol extract was increased by 5.23%. T4 increased more leaves in late growth period, enlarged leaves area, the yield was increased, the content of ethanol extract was increased by 3.09%. T2 increased fresh root average weight remarkably, the yield was increased. Conclusion： Humic acid fertilizer and amino acid liquid fertilizer could effectively promote plant growth, enlarge leaves area, promote dried biomass accumulation and transformation to root and increase yield and content of ethanol extract effectively.