ASTM D5539-94(2003)被替代
Standard Specification for Seed Starter Mix
出版：American Society for Testing and Materials
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基本信息
標準編號： ASTM D5539-94(2003)
發布時間：1994/4/15 0:00:00
標準類別：Standard
出版單位：American Society for Testing and Materials
標準頁數：2
標準簡介
CONTAINED IN VOL. 04.08, 2005Deals with material features, physical requirements and sampling suited to the designation of a soil or soil-like material for seed starting. This consists of the duration of germination ending after the cotyledon stage (at the opening of the first leaves). Starter mixes can include artificial mixes of natural or artificial materials, and natural soils for the initial germination of seeds to the cotyledon stage.
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