Agricultural use of sewage sludge
1997
Dumitru, M. | Motelica, D. M. | Alexandrescu, Ariadna | Plaxienco, Doina | Gament, Eugenia | Dumitru, Elisabeta | Calciu, I. | Vrinceanu, Nicoleta (Institutul de Cercetari pentru Pedologie si Agrochimie, Bucuresti (Romania))
The research carried out indicated the possibility of applying sewage sludge on agricultural lands, for efficient use of its content in organic matter and nutrients and for emptying the storage places. The main restriction is the tendency of increasing the contents of heavy metals in soil and plant. By using 15 N with 10 percent excessive atoms, a low degree of efficient use of nitrogen from sewage sludge: below 5 percent for oat crop and below 24 percent for maize crop, depending on the applied rate.
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