| 摘要 |
<p>Plant growth hormones are extracted from seaweed in an anaerobic digestion process wherein seaweed, preferably in the form of seaweed meal, is mixed with animal manure, typically pig slurry, in a solids ratio of 1:3 to 3:1 with a total solids content of 10-15%. The digester is operated in the mesophilic temperature range, typically about 35 DEG C, with retention times of between 10 and 20 days. The digester product is filtered and concentrated to form a liquid foliar feed suitable for application to crops by spraying.</p> |
