NPK肥料组合处理对沙地中科羊草根系形态特征的影响

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中图分类号：S541 文献标识码：A 文章编号：0488-5368（2025）06-0073-06

Abstract： To explore the efects of NPK fertilizer combinations on the root characteristics of Leymus chinensis in sandy soil，root morphological indices were measured under 15 diffrent NPK fertilizer treatments.The results showed that root biomass was highest under the N5P8K8 treatment，while total rot length was greatest under N8P5K2 The total root volume was highest under N11P3K3 In addition，the total rot surface area，average root diameter，and rhizome dry weight of Leymus chinensis under the N5P3K3 treatment were significantly higher than those under other treatments.Overall，the root morphological characteristics of Leymus chinensis are most favorable under the N5P3 K3 fertilizer combination.

Key words： Leymus chinensis； Fertilizer combination； Sand soil； Root morphology

羊草（Leymuschinensis（Trin.）Tzvel.），又叫碱草，属于禾本科赖草属多年生草本植物，具有抗寒冷、抗干旱、耐盐碱、蓄水性强等特点，分布范围广，生态适应性强，是我国优势的牧草和生态草[1＼～3]。（剩余7310字）