| 摘要 |
<p>A composition is provided which comprises an acidic component, generally fulvic acid, having a molecular weight not exceeding 20,000 Daltons and a low content of the elements aluminium, mercury, cadmium, chromium and lead. The acidic component is preferably carbohydrate derived and preferably using a wet oxidation process.</p> |
| 申请人 |
PFEINSMITH S.A. (PTY) LTD;LOXTON, EARLE JOHN;MALAN, RUDOLPH JOHANNES;COETZEE, STEFAN |
发明人 |
LOXTON, EARLE JOHN;MALAN, RUDOLPH JOHANNES;COETZEE, STEFAN |
