用于快速繁殖植物的基质的容重、持水量、孔隙度以及固、液、气三相比等物理性质与植物根系的生长发育密切相关。理想的基质应具有调节水分、养分、空气的能力及促进植物快速生根和成活后的生长势。目前,国内外普遍以轻基质材料(蛭石、珍珠岩等)用于育苗繁 The bulk density, water holding capacity, porosity, and the physical properties such as solid, liquid and gas ratio of the three substrates used for rapid propagation of plants are closely related to the growth and development of plant roots. The ideal substrate should have the ability to regulate the water, nutrients, air and promote plant rapid rooting and growth potential after living. At present, light matrix materials (vermiculite, perlite, etc.) are commonly used in nursery plants at home and abroad