Comparison of three methods for determination of Si content in horticul-tural crops
三种测定园艺作物硅含量方法的比较研究（英文）

Si plays an important role in plant growth and development. In the past, determination of silicate content in horticultural materials was laborious and/or difficult. In the present study, three methods to analyze Si in horticultural crops including apple, peach, melon, and bluegrass were compared. Among those methods, digestion of material with HCl HF solution by shaking overnight followed by inductively coupled agron plasma (ICAP) procedure was proved to be sensitive, rapid and accurate for reducing potential errors. The autoclave induced digestion appeared to be suitable to the horticultural crops with high Si content, but not to those with low Si content such as apple and peach.