African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Development of cover crops under different water levels in the soil

Leandro Pereira Pacheco*, Fabiano André Petter, Marluce Pereira Damasceno Lima, Tamnata Ferreira Alixandre, Luana Maria Alves da Silva, Raphael Reis da Silva and Wendell Rezende Moreira Ribeiro
Department of Agronomy - Crop Science, Federal University of Piauí, Campus, Bom Jesus-PI, Brazil. 
Email: [email protected]

  •  Accepted: 09 May 2013
  •  Published: 23 May 2013

Abstract

The objective was to evaluate the effect of intervals of irrigation frequency (water deficit) in the development of cover crops. The experiment was conducted in a greenhouse at the experimental campus of the Federal University of Piauí (UFPI) in Bom Jesus-PI in the period between June to August 2011, on soil classified as Typic Dystrophic - Lad. The experimental design was randomized blocks in factorial scheme 5 x 4, with factors consisting of 5 cover crops (Brachiaria brizantha cv. Piata; Mucuna aterrimaPennisetum glaucum cv. ADR-500; P. glaucum cv. ADR 8010; Brachiaria brizantha cv. Marandu), and 4 intervals of irrigation frequency (2, 4, 6 and 8 days), with 4 replications. Cover crops were significantly affected in their development, with reductions in biomass above 50% when subjected to the interval of irrigation frequency to 8 days. The P. glaucum cv. ADR-500 has potential to overcome the water deficit conditions during the off season in the Cerrado of Piauí.

 

Key words: Brachiaria, Pennisetum glaucum cv. ADR-500, no-tillage.