P. Martinolmedo et al., NITROGEN MINERALIZATION IN SOILS AMENDED WITH ORGANIC BY-PRODUCTS OF OLIVE OIL AND SUGAR-BEET PROCESSING INDUSTRIES, Fresenius environmental bulletin, 4(1), 1995, pp. 59-64
Mineralization of organic-N supplied to two different types of sails b
y an alpechin (olive-oil mill waste water)-compost and a beet vinasse
after three consecutive years was studied. Results were compared with
those obtained for a mineral fertilizer treatment and a control (unfer
tilized). N-mineralization can be described by a first order kinetic m
odel. Both organic residues produced an important increase in the orga
nic-N loading of the soils which is slowly released over a time.