| 摘要 |
Waste or by-product carbohydrate materials comprising polysaccharides are converted into slow-release nitrogen products valuable as a protein substitute in ruminant feeding and as a slow-release fertilizer for growing plants. The slow-release properties are achieved by acid catalyzed reaction of an amide such as urea or biuret with partially degraded waste or by-product polysaccharides and by agglomeration of this combination into particles having substantial physical integrity. The waste or by-product polysaccharide materials include citrus pulps, bagasse, peanut hulls, wheat straw and waste paper.
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