title: Protecting effect of recycled urban wastes (sewage sludge and wastewater) on ryegrass against the toxicity of pesticides at high concentrations.
abstract: Degraded landscapes, like those from abandoned mine areas, could be restored by revegetating them with appropriate plant species, after correction for acidity and improvement by adding exogenous organic material. Application of urban wastes to large areas of derelict land helps in the sustainable development of this landscape. However, the development of plant species in these soils could require in the future the management of possible pests or diseases by pesticide applications which could also affect plant yield. Therefore, ryegrass (Lolium perenne L.) was planted in a limed soil from the mining area of Riotinto (SW Spain), using an indoor pot experiment and the effects of amendment with sewage sludge, as well as irrigation with urban wastewater on plant uptake of the insecticide thiacloprid and the fungicide fenarimol were examined. Ryegrass biomass was reduced up to 3-fold by pesticide application. Fenarimol residues were the highest in soil, while those of thiacloprid were lower in soil and higher in ryegrass. Addition of sewage sludge and irrigation with wastewater led to a reduction of pesticide translocation to the aerial plant parts, representing a lower hazard to ryegrass quality grown in this mine soil.
authors.affiliation: Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Avda. Palmeras, 4, 18100 Armilla, Granada, Spain; Unidad Asociada CSIC-USE "Investigación Integral del Medio Físico y Biótico", Spain. Electronic address: aranchaph@iact.ugr-csic.es.
authors.forename: Aránzazu
authors.initials: A
authors.lastname: Peña
authors.affiliation: Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Avda. Palmeras, 4, 18100 Armilla, Granada, Spain; Unidad Asociada CSIC-USE "Investigación Integral del Medio Físico y Biótico", Spain.
authors.forename: Ma Dolores
authors.initials: MD
authors.lastname: Mingorance
authors.affiliation: Department of Plant Biology and Ecology, University of Seville, Avda. Reina Mercedes s/n, 41012 Seville, Spain; Department of Analytical Chemistry, University of Seville, Prof. García González 1, 41012 Seville, Spain.
authors.forename: Ignacio
authors.initials: I
authors.lastname: Guzmán
authors.affiliation: Estación Experimental del Zaidín (CSIC), Prof. Albareda 1, 18008 Granada, Spain.
authors.forename: Lourdes
authors.initials: L
authors.lastname: Sánchez
authors.affiliation: Department of Analytical Chemistry, University of Seville, Prof. García González 1, 41012 Seville, Spain; Unidad Asociada CSIC-USE "Investigación Integral del Medio Físico y Biótico", Spain.
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Fernández-Espinosa
authors.affiliation: Department of Plant Biology and Ecology, University of Seville, Avda. Reina Mercedes s/n, 41012 Seville, Spain; Unidad Asociada CSIC-USE "Investigación Integral del Medio Físico y Biótico", Spain.
authors.forename: Benito
authors.initials: B
authors.lastname: Valdés
authors.affiliation: Department of Plant Biology and Ecology, University of Seville, Avda. Reina Mercedes s/n, 41012 Seville, Spain; Unidad Asociada CSIC-USE "Investigación Integral del Medio Físico y Biótico", Spain.
authors.forename: Sabina
authors.initials: S
authors.lastname: Rossini-Oliva
mesh_terms: D018533:Biomass; D002947:Cities; D007220:Industrial Waste; D008129:Lolium / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D008906:Mining; D000073943:Neonicotinoids; D010575:Pesticides / Q000032:analysis / Q000633:toxicity*; D011725:Pyridines / Q000032:analysis / Q000633:toxicity; D011743:Pyrimidines / Q000032:analysis / Q000633:toxicity; D059027:Recycling; D012722:Sewage; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D013030:Spain; D013843:Thiazines / Q000032:analysis / Q000633:toxicity; D018505:Waste Management / Q000379:methods*; D062065:Wastewater
chemical_list: D007220:Industrial Waste; D000073943:Neonicotinoids; D010575:Pesticides; D011725:Pyridines; D011743:Pyrimidines; D012722:Sewage; D012989:Soil Pollutants; D013843:Thiazines; D062065:Wastewater; C417209:thiacloprid; C033789:fenarimol
keywords: Biomass production; Mine soil; Organic amendment; Ryegrass; Water quality