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      Biological soil attributes in oilseed crops irrigated with oilfield produced water in the semi-arid region Translated title: Atributos biológicos do solo cultivado com oleaginosas irrigadas com água produzida do petróleo em região semiárida

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          Abstract

          ABSTRACT Wastewater from oil is the main residue of the oil industry. Studies have shown that wastewater, or produced water, can be treated and used as an alternative source for the irrigation of oilseed crops. The aim of this work was to evaluate the effect of treated produced water on the biological properties of soil cultivated with the castor bean cv. BRS Energy and the sunflower cv. BRS 321 respectively, for two and three successive cycles of grain production. The first cycle in the sunflower and castor bean corresponds to the dry season and the second cycle to the rainy season. The third crop cycle in the sunflower relates to the dry season. The research was carried out from August 2012 to October 2013, in the town of Aracati, in the State of Ceará (Brazil), where both crops were submitted to irrigation with filtered produced water (FPW), produced water treated by reverse osmosis (OPW), or groundwater water from the Açu aquifer (ACW), and to no irrigation (RFD). The treatments, with three replications, were evaluated during the periods of pre-cultivation and plant reproduction for soil respiration (Rs), total organic carbon (TOC) and the population density of bacteria (Bact) and filamentous fungi (Fung) in the soil. In the sunflower crop, these soil attributes are sensitive to the irrigation water used. Irrigation of the castor bean affects soil respiration. Under the conditions of this study, irrigation with FPW may be a short-term alternative in the castor bean and sunflower crops.

          Translated abstract

          RESUMO A água residual do petróleo é o principal resíduo na indústria petrolífera. Estudos indicaram que água residuária ou água produzida pode ser tratada e usada como fonte alternativa na irrigação de culturas de oleaginosas. Este trabalho objetivou avaliar o efeito da água produzida tratada sobre atributos biológicos do solo cultivado com mamona cv. BRS Energia, e girassol cv. BRS 321, respectivamente, por dois e três ciclos sucessivos de produção de grãos. O primeiro ciclo de girassol e mamona corresponde à época seca e o segundo, à época chuvosa. O terceiro ciclo de cultivo de girassol se refere à época seca. A pesquisa foi conduzida durante o período de agosto de 2012 a outubro de 2013, no município de Aracati, Ceará (Brasil), onde ambas as culturas foram submetidas à irrigação com água produzida filtrada (APF), água produzida tratada por osmose reversa (APO), água do aquífero Açu (ACA) e sem irrigação (SEQ). Os tratamentos com três repetições foram avaliados em períodos de pré-cultivo, de reprodução das plantas, pela respiração edáfica (Re), carbono orgânico total (COT) e densidade populacional de bactérias (Bact) e fungos filamentosos (Fung) do solo. Esses atributos do solo são sensíveis às águas de irrigação usadas na cultura do girassol. A irrigação das mamoneiras afeta a respiração edáfica. Para as condições deste estudo, a irrigação com APF pode ser alternativa de curto prazo nas culturas de mamona e girassol.

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          Standard methods for the examination of water and wastewater

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            Soil moisture and plant residue addition interact in their effect on extracellular enzyme activity

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              Organic amendments and land management affect bacterial community composition, diversity and biomass in avocado crop soils

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rca
                Revista Ciência Agronômica
                Rev. Ciênc. Agron.
                Universidade Federal do Ceará (Fortaleza, CE, Brazil )
                0045-6888
                1806-6690
                June 2017
                : 48
                : 2
                : 231-241
                Affiliations
                [2] Fortaleza Ceará orgnameEmbrapa Agroindústria Tropical Brazil olmar.weberembrapa.br, lindbergue.crisostomo@ 123456embrapa.br
                [1] Fortaleza Ceará orgnameUniversidade Estadual do Ceará orgdiv1Departamento de Ciência do Solo Brazil ana16claricehotmail.com, denisandradej@ 123456hotmail.com
                Article
                S1806-66902017000200231
                10.5935/1806-6690.20170027
                212a136d-9a58-4f50-a747-192439f8ffdd

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 24 February 2015
                : 11 August 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 11
                Product

                SciELO Brazil


                Água residuária da indústria petrolífera,Atributos microbiológicos do solo,Respiração basal do solo,Wastewater from the oil industry,Microbiological properties of the soil,Soil basal respiration

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