苗木的标准应包括高度、地径、根系、木质化程度、合格苗的产量和苗木的包装、运输、使用范围、检验方法等。本标准只包括苗木地径、苗木高度与直径的比例、每亩合格苗产量和检验方法四项。一、检验苗木质量的单位和工具检验苗木地径和高度,一律使用国际公制计量单 Seedling standards should include height, diameter, root system, the degree of lignification, the production of qualified seedlings and seedlings packaging, transportation, use, testing methods. This standard only includes the seedling diameter, seedling height and diameter ratio, yield per acre seedlings and test methods four. First, test the quality of seedlings units and tools to test seedling diameter and height, shall use the international metric measurement list