Controlled release systems to prevent the agro-environmental pollution derived from pesticide use.
J Environ Sci Health B
; 42(7): 857-62, 2007.
Article
en En
| MEDLINE
| ID: mdl-17763044
ABSTRACT
Different controlled release formulations (CRFs) of isoproturon, imidacloprid and cyromazine have been studied to contribute to diminish, somehow, the problems related to the application of conventional formulations. The alginate-based CRFs were based on sodium alginate (1.90%), Technical grade (TG) isoproturon or imidacloprid (1.20%), natural bentonite (3.30%), and water (93.6%), and the lignin-based CRF was based on kraft lignin (50.0%) and TG cyromazine (50.0%). The mobility of non-formulated TG pesticides and CRFs were compared by using soil columns. The use of CRFs retard release and reduce the presence of pesticides in the leachate and, moreover, the pesticides stay in the soil longer. Sorption capacity of the soil for pesticides was measured using batch experiments. The results obtained (11.67 mg kg(- 1) for isoproturon, 3.17 mg kg(- 1) for imidacloprid and 0.63 mg kg(-1) for cyromazine) were in agreement with those obtained under dynamic conditions.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Contaminantes del Suelo
/
Monitoreo del Ambiente
/
Preparaciones de Acción Retardada
/
Contaminación Ambiental
/
Insecticidas
Aspecto:
Determinantes_sociais_saude
Idioma:
En
Revista:
J Environ Sci Health B
Año:
2007
Tipo del documento:
Article
País de afiliación:
España