Tillering of signal grass grown in a soil from a degraded pasture as related to sulfur, nitrogen and lime rates

Authors

  • Rosane Cláudia Rodrigues Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Departamento de Zootecnia, Pirassununga, SP
  • Herbert Barbosa de Mattos Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Produção Animal, Piracicaba, SP
  • Walcylene Lacerda M. Pereira Universidade Federal de Mato Grosso, Departamento de Solos e Engenharia Rural, Cuiabá, MT
  • Fernanda Andreotti Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Pirassununga, SP
  • Anderson Luiz dos Santos Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Laboratório de Análises de Solos, Pirassununga, SP

Keywords:

Fertilization, Brachiaria decumbens, pasture recovery

Abstract

Most of Brazilian pastures are under degradation process, and the main cause of that, is a decrease in soil natural fertility. Thus, the objective of this work was to evaluate tillering of Brachiaria decumbens Stapf, cv. Basilisk growing in a soil from a degraded pasture after being submitted to sulfur, nitrogen and lime rates. The experiment was carried out in a greenhouse during the summer. Experimental treatments corresponde to a 4x4x3 factorial arrangement for lime, nitrogen and sulfur, respectively, assigned to experimental units according to a randomized complete block design, with three replications. Nitrogen rates were 0, 180, 630 and 1080 mg/kg of soil; lime rates were 0; 1587.6; 3175.2 and 4762.8 mg/kg of soil, where as sulfur rates were 0, 108 and 216 mg/kg of soil. Results showed a nitrogen response and nitrogen X lime interaction (P<0.05) during the first harvest and a nitrogen x lime x sulfur interaction during the second harvest. The number of tillers was influenced by lime, nitrogen and sulfur rates. The highest number of tillers was observed for the intermediary rates used tested in thus study.

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Published

2013-11-28

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Tillering of signal grass grown in a soil from a degraded pasture as related to sulfur, nitrogen and lime rates. (2013). Bulletin of Animal Husbandry, 61(1), 39-47. http://35.198.24.243/index.php/bia/article/view/1332

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