Corn grain yield and dry mass of Brachiaria intercrops in the crop-livestock integration system/Produtividade de graos de milho e massa seca de braquiarias em consorcio no sistema de integracao lavoura-pecuaria

• Published in: Ciência rural 2011-05, Vol.41 (5), p.875
• Main Authors: Pariz, Cristiano Magalhaes, Andreotti, Marcelo, Azenha, Mariana Vieira, Bergamaschine, Antonio Fernando, de Mello, Luiz Malcolm Mano, Lima, Ronaldo Cintra
• Format: Article
• Language: Spanish
• Subjects: Corn; Crop yields; Livestock; Livestock industry; No-tillage
• ISSN: 0103-8478

The objective of this research was to evaluate the corn grain yield and dry mass of Brachiaria forage in two intercrop in crop-livestock integration system at winter-spring season in the Brazilian Cerrado. The experiment was carried out during the 2006 growing season, at the Engineering College Experimental Station (FE/UNESP, Ilha Solteira Campus), Selviria, Mato Grosso do Sul State, Brazil. The experimental design used was in randomized blocks, in factorial scheme (4x2), with five replications. The treatments were four Brachiaria species (Brachiaria brizantha cv. '.Marandu ', Brachiaria decumbens, Brachiaria ruziziensis and Brachiaria hibrido cv. 'Mulato II') intercropped on rows and spread on total area during corn sowing. It were evaluated the production components, the grain corn yield and the dry mass yield of Brachiaria forage after the corn harvest. The forages intercropped at spread on total area, with emphasis to Brachiaria ruziziensis, provided lower development of corn plants, lower values of production components and grain yield. Although the dry mass yield was satisfactory (above 2,500kg [ha.sup.-1]), except for Brachiaria brizantha, the other species intercropped at spread on total area were higher, with highlight to Brachiaria decumbens and Brachiaria ruziziensis that showed greater adaptability and forage yield at corn intercrop in crop-livestock integration system. Key words: Brachiaria brizantha cv. '.Marandu', Brachiaria decumbens, Brachiaria ruziziensis, Brachiaria hibrid cv. 'Mulato II', no-tillage system, Zea mays L. Objetivou-se avaliar as produtividades de graos de milho e massa seca de braquiarias em duas modalidades de consorcio em sistema de integracao lavoura-pecuaria no periodo de inverno-primavera em regiao do Cerrado. O experimento foi conduzido no ano de 2006, na Fazenda de Ensino, Pesquisa e Extensao (FEPE), pertencente a Faculdade de Engenharia (FE/UNESP--Campus de Ilha Solteira), localizada no municipio de Selviria, MS. O delineamento experimental utilizado foi de blocos casualizados, em esquema fatorial 4x2, com cinco repeticoes. Os tratamentos constituiramse de quatro especies de braquiarias (Brachiaria brizantha cv. 'Marandu ', Brachiaria decumbens, Brachiaria ruziziensis e Brachiaria hibrido cv. 'Mulato II') consorciadas na linha e a lanco no momento da semeadura do milho. Avaliaram-se os componentes da producao, a produtividade do milho, bem como a massa seca das braquiarias apos a colheita do milho. As forrageiras c