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      Influência da água residuária disponível no solo e adubação nitrogenada sobre o algodão marrom Translated title: Influence of wastewater available in the soil and nitrogen manuring on brown cotton

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          Abstract

          Resumo Conduziu-se um experimento em casa de vegetação do Centro de Tecnologia e Recursos Naturais da Universidade Federal de Campina Grande, PB, com o objetivo de verificar o efeito de níveis de água (25, 50, 75 e 100%) da água disponível no solo, usando água residuária urbana tratada e de abastecimento público e doses de nitrogênio (0, 150, 300 e 450 kg ha-1), sobre o consumo de água da cultura, altura da planta, área foliar e biomassa do algodão de fibra marrom, variedade BRS 200 (Gossypium hirsutum L.). Usou-se o delineamento em blocos ao acaso em esquema fatorial misto (4 x 4) + 1, mais uma testemunha irrigada com água de abastecimento e recebendo 300 kg N ha-1, com três repetições. A ETc, altura, área foliar e a biomassa foram influenciadas de forma significativa pelas doses de nitrogênio, aos 100 dias após a emergência. Os níveis de água disponível no solo afetaram apenas a ETc e a produção de biomassa da parte aérea.

          Translated abstract

          Abstract An experiment was carried out in a greenhouse of the Center of Technology of Natural Resources of the Federal University of Campina Grande, Paraíba state, aiming to verify the effect of water levels in the soil (25, 50, 75 and 100% of the available water in the soil), using treated urban wastewater and of tap water, and of doses of nitrogen (0, 150, 300 and 450 kg ha-1) on the water consumption of the crop, plant height, foliar area and biomass of the cotton of brown fiber, variety BRS 200 (Gossypium hirsutum L.). Randomized blocks design was used in mixed factorial scheme (4 x 4) + 1, plus a control irrigated with water of provisioning and receiving 300 kg N ha-1, with three replications. The ETc, height, foliar area and the biomass were influenced in a significant way by the doses of nitrogen, to the 100 days after the emergency. The levels of available water in the soil affected only the ETc and the production of biomass of the aerial part.

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          Radiometric characteristics of Triticum aestivum cv, Astral under water and nitrogen stress

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            Drip irrigation of cotton with treated municipal effluents: II. Nutrient availability in soil

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              A linear rule for direct nondestrutive leaf area measurements

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                Author and article information

                Journal
                rbeaa
                Revista Brasileira de Engenharia Agrícola e Ambiental
                Rev. bras. eng. agríc. ambient.
                Departamento de Engenharia Agrícola - UFCG (Campina Grande, PB, Brazil )
                1415-4366
                1807-1929
                2005
                : 9
                : suppl 1
                : 248-252
                Affiliations
                [4] Campina Grande Paraíba orgnameUniversidade Estadual da Paraíba orgdiv1DHG Brazil marciarqaa@ 123456ibest.com.br
                [1] Campina Grande Paraíba orgnameUniversidade Federal de Campina Grande orgdiv1CTRN orgdiv2CNPq/CT-Hidro Brazil wagnerwaa@ 123456gmail.com
                [2] Campina Grande Paraíba orgnameUniversidade Federal de Campina Grande orgdiv1CTRN orgdiv2UAEA Brazil zedantas@ 123456deag.ufpb.edu.br
                Article
                S1415-43662005000500248 S1415-4366(05)00900000248
                10.1590/1807-1929/agriambi.v9nsupp248-252
                26cc81f8-a0cb-4a2f-979f-865e3ebad011

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

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                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 10, Pages: 5
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                SciELO Brazil

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                Artigos

                reúso,irrigação,adubação,algodão marrom,reuse,irrigation,manuring,brown cotton

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