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      Ammonia volatilization with swine slurry injection and use of nitrification inhibitor Translated title: Volatilização de amônia do solo com injeção de dejeto líquido suíno e inibidor de nitrificação

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          Abstract

          ABSTRACT The injection of nitrogen sources into the soil and use of nitrification inhibitor can improve the efficiency of applied nitrogen and minimize losses to the environment. The objective of this study was to evaluate the effect of swine slurry (SS) and urea in two modes of application in the soil (injected and surface), and the use of nitrification inhibitor on NH3 volatilization in a controlled environment, upon varying soil texture and soil pH conditions. The experiment was conducted under controlled conditions, or a Rhodic Kandiudox and Typic Hapludult soil in a completely randomized design in a 4 x 2 x 2 x 2 factorial design with three replications. The study evaluated four fertilizers (urea, SS, SS +nitrification inhibitor (dicyandiamide-DCD) and control), two pH conditions (natural and limed) and two forms of fertilizer application (injected and surface), and two soils. The SS rate used was 21 m3 ha-1, and the rate of the inhibitor was 10 kg ha-1. The evaluations consisted in daily accumulated ammonia volatilization up to 14 days, and the percentage of soil nitrogen loss. The injection of fertilizers reduced emissions of ammonia in both soils and, limed soil had higher N losses by volatilization. The inhibitor did not increase the emission of ammonia in both soils.

          Translated abstract

          RESUMO A injeção de fontes de nitrogênio no solo e o uso de inibidor de nitrificação podem melhorar a eficiência do nitrogênio aplicado e minimizar perdas para o ambiente. O objetivo deste trabalho foi avaliar o efeito do DLS e da ureia em dois modos de aplicação no solo (injetado e superficial), e o uso de inibidor de nitrificação sobre a volatilização de NH3 em ambiente controlado, com condições variadas de textura e pH do solo. O experimento foi conduzido em condições controladas, em um Nitossolo e um Argissolo, com delineamento inteiramente casualizado, em esquema fatorial 4 x 2 x 2 x 2 com três repetições. Avaliou-se quatro fertilizantes (ureia, dejeto líquido suíno, dejeto líquido suíno+inibidor de nitrificação (dicianodiamida-DCD) e testemunha), duas condições de pH (natural e corrigido), duas formas de aplicação dos fertilizantes (injetado e superficial), e dois solos. A dose de dejeto suíno foi de 21 m3 ha-1, e a do inibidor foi de 10 kg ha-1. As avaliações consistiram em mensuração da volatilização de amônia diária e acumulada até o 14º dia, e da porcentagem de N perdido em relação ao aplicado. A injeção reduziu as emissões de amônia em ambos os solos, e a correção do pH favoreceu as perdas de N por volatilização. O inibidor não aumentou a emissão acumulada de amônia em ambos os solos.

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          Most cited references21

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          Nitrogen losses from the soil/plant system: a review

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            Effects of the different rates of urease and nitrification inhibitors on gaseous emissions of ammonia and nitrous oxide, nitrate leaching and pasture production from urine patches in an intensive grazed pasture system

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              The effect of nitrification inhibitors on soil ammonia emissions in nitrogen managed soils: a meta-analysis

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                Author and article information

                Journal
                rceres
                Revista Ceres
                Rev. Ceres
                Universidade Federal de Viçosa (Viçosa, MG, Brazil )
                0034-737X
                2177-3491
                June 2017
                : 64
                : 3
                : 307-314
                Affiliations
                Article
                S0034-737X2017000300307 S0034-737X(17)06400300307
                10.1590/0034-737x201764030012
                491af378-a607-4874-a9d9-ccc6a4ca11f4

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

                History
                : 18 April 2017
                : 23 June 2015
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 8
                Product

                SciELO Brazil

                Categories
                Soil Science and Plant Nutrition

                manure,nitrogênio,emissão,biofertilizante,dicianodiamida,nitrogen,emission,dicyandiamide

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