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      Soybean growth and yield under cover crops Translated title: Análise de crescimento e produtividade de grãos de soja sobre plantas de cobertura

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          Abstract

          The use of cover crops in no-tillage systems can provide better conditions for the development of soybean plants with positive effects on grain yield and growth analysis techniques allow researchers to characterize and understand the behavior of soybean plants under different straw covers. Thus, the aim of this study was to characterize, using growth analysis, yield components and agronomic performance of soybean under common bean, Brachiaria brizantha and pearl millet straws. The experiment was performed on a soil under cerrado in the municipality of Santo Antônio de Goiás, GO. The experiment was arranged in a randomized complete block design with three treatments (cover crops) and five replications. Soybean grain yield was lower in the B. brizantha straw treatment (3,708 kg ha-1) than both in the pearl millet (4.772 kg ha-1) and common bean straw treatments (5,200 kg ha-1). The soybean growth analysis in B. brizantha, pearl millet and common bean allowed characterizing the variation in the production of dry matter of leaves, stems, pods and total and leaf area index that provided different grain yields. The cover crop directly affects the soybean grain yield.

          Translated abstract

          O uso de plantas de cobertura no sistema plantio direto pode proporcionar melhores condições para o desenvolvimento da cultura da soja com reflexos positivos na produtividade de grãos, e o uso da técnica de análise de crescimento permitirá caracterizar e entender o comportamento das plantas de soja sobre diferentes palhadas. Dessa forma, o objetivo deste trabalho foi caracterizar, por meio da análise de crescimento, os componentes e o desempenho agronômico da soja sobre as palhadas de feijão-comum, Brachiaria brizantha e milheto. O experimento foi conduzido em solo de cerrado no município de Santo Antônio de Goiás, Estado de Goiás. O delineamento experimental foi o de blocos completos casualizados, com três tratamentos (palhadas de cobertura) e cinco repetições. A produtividade de grãos de soja foi menor sobre palhada de B. brizantha (3,708 kg ha-1) do que sobre as palhadas de milheto (4,772 kg ha-1) e feijão-comum (5,200 kg ha-1). A avaliação da análise de crescimento das plantas de soja sobre as palhadas de B. brizantha, milheto e feijão-comum possibilitou caracterizar a variação na produção de matéria seca de folhas, hastes, vagens e total e no IAF (índice de área foliar), que proporcionou as diferentes produtividades de grãos da soja. A planta de cobertura afeta diretamente a produtividade de grãos de soja.

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          Qualidade do melão exportado pelo porto de Natal-RN

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            Análise de crescimento de plantas, noções básicas

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              Long term trends in fertility of soils under continuous cultivation and cereal cropping in southern Queensland. II. Total organic carbon and its rate of loss from the soil profile

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rceres
                Revista Ceres
                Rev. Ceres
                Universidade Federal de Viçosa (Viçosa )
                2177-3491
                April 2013
                : 60
                : 2
                : 249-256
                Affiliations
                [1 ] Embrapa Cerrados Brazil
                [2 ] Embrapa Arroz e Feijão Brazil
                [3 ] Embrapa Arroz e Feijão Brazil
                Article
                S0034-737X2013000200014
                10.1590/S0034-737X2013000200014
                a7593f75-0bc5-4fec-9d39-a758c3050ba6

                http://creativecommons.org/licenses/by/4.0/

                History
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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0034-737X&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                Glycine max (L.) Merr.,Phaseolus vulgaris (L.),Pennisetum glaucum (L.) R. Br.,Brachiaria brizantha (Hochst. ex A. Rich.) Stapf, no-tillage system,Phaseolus vulgaris L.,Brachiaria brizantha (Hochst. ex A. Rich.) Stapf, sistema plantio direto

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