35 ▣0-15cm 30 ▣15-30cm 王 25 20 王 的 10 5 0 None Full Layer Partial Layer Mixed Plastic Mulch Type Plants growing with a layer of mulch or under plastic mulch had the highest colonization in the upper 15 cm of soil. 覆盖栽培可以提高表层土壤根系的菌根侵染率 黑树专业须法生瀑程yO2 果树专业硕士生课程-yao2 Plants growing with a layer of mulch or under plastic mulch had the highest colonization in the upper 15 cm of soil. 覆盖栽培可以提高表层土壤根系的菌根侵染率