环保酵素是以废弃果蔬、植物、厨余垃圾等为原料发酵制得的含有特定生物活性成分的产品，富含各种酶、有机酸、矿物质和微生物，是一种环保高效的土壤改良材料。为了探明酵素改良土壤和供肥作用对当归生长的影响，给当归种苗绿色标准化繁育提供参考。以岷归5号为指示品种，采用单因素随机区组法设计，以田园土和含环保酵素的营养土按体积比2 ∶ 1、1 ∶ 1的基质培育种苗，以不施酵素为对照，研究了不同用量环保酵素对当归种苗质量性状及产量的影响。结果表明，以田园土和含环保酵素营养土体积比为2 ∶ 1的基质更有利于提高当归种苗质量性状和产量，有利于增加当归一级种苗数。其中百苗鲜重和根冠比分别较不施酵素增加14.13%、29.13%；当归折合产量最高，为1 520.82 kg/hm2，较不施酵素增产13.06%。

Environmental protection enzyme is a product containing specific bioactive ingredients, which is fermented from waste fruits and vegetables, plants, kitchen waste, etc. It is rich in various enzymes, organic acids, minerals and microorganisms, and is an environmentally friendly and efficient soil improvement material. In order to explore the soil improvement and fertilization effects of environmental protection enzymes on the growth of Angelica sinensis so as to provide references for the green and standardized breeding of Angelica sinensis seedlings, Mingui 5 was used as the experiment material and single factor random block design was adopted, seedlings were cultivated in nutritive soil with the ratios of garden soil to environmental protection enzymes of 2∶1 and 1∶1, respectively with no enzyme application as the control, and effects of different amounts of environmental protection enzymes on quality traits and yields of Angelica sinensis seedlings were studied. The results showed that the ratio of garden soil to enzyme at 2∶1 was more conducive to improving the quality and yield of Angelica sinensis seedlings and increasing the number of first-class Angelica sinensis seedlings. The 100-seedling fresh weight and root to shoot ratio were increased by 14.13% and 29.13%, respectively compared to that of the contrl. The average yield of Angelica sinensis was the highest, i.e., 1 520.82 kg/ha, which was 13.06% higher than that of the control.

S567.23

甘肃省重大科技专项(20ZD7NA007)；定西市重点技术攻关专项(DX2022BZ98)；现代农业产业技术体系建设专项资金(CARS-21)。