Estimation of the potentíal supply of nitrogen by tropical legumes. Region of Pindamonhangaba, State of São Paulo, Brazil

Authors

  • José Roberto Cosentino Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Setor de Ecologia das Pastagens, Nova Odessa, SP
  • Valdinei Tadeu Paulino Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Herbert Barbosa de Mattos Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Gilberto Bufarah Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Nova Odessa, SP

Abstract

The present field work was conducted during three years at the Estação Experimental de Zootecnia de Pindamonhangaba, do Instituto de Zootecnia State of São Paulo, Brazil. It was evaluated the nitrogen fixation through forage legumes: perennial soybean - Neonotania wightii (Arnott) Lackey, galaxia - Galactia striata (Jacq.) Urb. and centro - Centrosema pubescens Benth, single or m mixture with Setaria sphacelara Stapf. cv. Kazungula. These species and associations were fertilized with three levels of nitrogen: 0, 150 and 300 kg per hectare per year. Setaria responded to nitrogen fertilization until 150 kg N/hectare/year incrising 48.5% the dry matter productions of protein. The forage legumes, perennial soybean, galaxia and centro increased 9.44, 11.49 and 11.46% the dry matter production of setaria exclusive and without N. The apparent nitrogen transference of perennial soybean, galaxia e centro to the associated setaria was 28.9, 59.6 and 6.5 kg/hectare/year, respectively.

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Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Estimation of the potentíal supply of nitrogen by tropical legumes. Region of Pindamonhangaba, State of São Paulo, Brazil. (2014). Bulletin of Animal Husbandry, 44(1), 147-153. http://bia.iz.sp.gov.br/index.php/bia/article/view/731

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