| 摘要 |
<p>Fertiliser mixts. which have soil improving props. due to increased water-holding capacity from their colloid nature are prepd. from refuse and waste material contg. amino acid fore-runners (e.g. guanidine), amino acid derivs. (e.g. aminoacetic acid, creatine, creatinine), proteins or their break-down prods. by enrichment with H3PO4 by spraying in a mixer and aggregating with a binder consisting of urea and methyl cellulose.</p> |
