| 摘要 |
<p>Organic fertilisers are made from agricultural, forestry, industrial and urban wastes, e.g. vegetable residues, organic fractions of solid urban or industrial residues, sludge from purificn. of effluent waters, or olive sludge, by adding a liq. fraction consisting of olive juice, purine, molasses or wine lees. - After mixing and centrifuging, both fractions are fermented under aerobic conditions, subjected to a final milling and sieved.</p> |
