[Liquid fertilizers with nitrogen based on ammonium ligno-sulfates]
1997
Dorneanu, A. | Dorneanu, Emilia | Borlan, Z. (Institutul de Cercetari pentru Pedologie si Agrochimie, Bucuresti (Romania)) | Gheorghe, D. | Marinica, Gh. | Prodan, T. (Statiunea Centrala de Cercetari pentru Cultura Plantelor pe Nisipuri, Dabuleni, (Romania)) | Preda, C. (SC CHIMENERG SA, Craiova (Romania)) | Martin, A. (SC CELOHART SA, Zarnesti (Romania)) | Povarna, Fl. (Statiunea de Cercetari pentru Cereale si Plante Tehnice, Albota (Romania)) | Filip, S. (Statiunea Centrala de Cercetari pentru Combaterea Eroziunii Solului, Perieni (Romania)) | Ianosi, M. (Institutul de Cercetari si Productie a Cartofului, Brasov (Romania)) | Clotan, Gh. (Statiunea de Cercetari si Productie pentru Cultura Sfeclei de Zahar, Brasov (Romania)) | Cardasol, V. (Institutul de Cercetari si Productie pentru Cultura Pajistilor, Brasov (Romania))
The paper presents the results of researches for producing liquid organo-mineral fertilizers with nitrogen, based on waste ammonium ligno-sulfates, coming from the cellulose industry, enriched with various sources of industrial nitrogen. Four types of such fertilizers were obtained, which proved their high efficiency as compared to the classical fertilizers with nitrogen. The production costs of these fertilizers referred to the active substance are 10 - 15 per cent lower
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