| By controlling water in pot, using L9（34）orthogonal test design, this paper studied effects on the effective components of Polygonum multiflorum under combination of different fertilizer and water. The results indicated that, the moisture and ash contents of annual Polygonum multiflorum did not exceed 10.0% and 5.0%, respectively, and the content of 2, 3, 5, 4'-tetrahydroxystilbene-2-O-ß-Dglucopyranoside and combined anthraquinones were not less than 1.0% and 0.1%, separately. Although the former one met the requirements of the People's Republic of China Pharmacopoeia (2010 Edition), the latter one didn't. In a word, by comprehensive analysis, the combinations
for fertilizer and water matching experiment was nitrogen 0~2.32 g/pot, P2O5 0~2.16 g/pot, K2O 3.00 g/pot, field water capacity 80. |
