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Soil sorption and leaching of active ingredients of Lumax® under mineral or organic fertilization

Pinna, Maria Vittoria and Roggero, Pier Paolo and Seddaiu, Giovanna and Pusino, Alba (2014) Soil sorption and leaching of active ingredients of Lumax® under mineral or organic fertilization. Chemosphere, Vol. 111 , p. 372-378. ISSN 0045-6535. eISSN 1879-1298. Article.

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DOI: 10.1016/j.chemosphere.2014.03.124


The study describes the soil sorption of the herbicide Lumax®, composed of S-metolachlor (MTC), terbuthylazine (TBZ), and mesotrione (MST), as influenced by mineral and organic fertilizers. The investigation was performed on a sandy soil of an agricultural area designated as a Nitrate Vulnerable Zone, where mineral and organic fertilizers were applied for many years. Two organic fertilizers, cattle manure and slurry, respectively, and a mineral fertilizer with a nitrification inhibitor, Entec®, were compared. According to the experiments, performed with a batch method, the sorption conformed to Freundlich model. The extent of sorption of Lumax® ingredients was closely related to their octanol–water partition coefficient Kow. The respective desorption was hysteretic. Leaching trials were carried out by using water or solutions of DOM or Entec® as the eluants. Only the elution with the mineral fertilizer promoted the leaching of Lumax® active ingredients.

Item Type:Article
ID Code:10632
Uncontrolled Keywords:Lumax®, Entec®, organic fertilization sorption, leaching
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/13 Chimica agraria
Area 07 - Scienze agrarie e veterinarie > AGR/02 Agronomia e coltivazioni erbacee
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
Deposited On:16 Jan 2015 10:13

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