Nodulation, nitrogen uptake and growth of lima bean in a composted tannery sludge-treated soil

• Autor(a) principal: Rocha, Sandra Mara Barbosa
• Data de Publicação: 2019
• Outros Autores: Antunes, Jadson Emanuel Lopes, Silva, Antonio Victor Cavalcante Rocha, Oliveira, Louise Melo De Souza, De Aquino, João Pedro Alves, De Melo, Wanderley Jose [UNESP], Figueiredo, Marcia Do Vale Barreto, De Araujo, Ademir Sérgio Ferreira
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/0103-8478cr20190301; http://hdl.handle.net/11449/201385
• topic: Biological N fixation; Chromium; Industrial waste; Phaseolus lunatus

This study evaluated the responses of lima bean (Phaseolus lunatus L.) to application of composted tannery sludge on nodulation, N uptake and plant growth. For eight years, the compost was applied at rates of: 0, 2.5, 5, 10, and 20 Mg ha-1 (dry basis). Plants of lima bean showed higher nodulation in treatments with compost; however, nodules reported in these treatments presented lower biomass, size and diversity than those reported in treatment without compost. Accumulation of N increased with the application of the highest rate (20 Mg ha-1), while there was an increase in chromium content in shoot with the increase in compost rates. Thus, the use of composted tannery sludge, in long-term, increases the accumulation of chromium in plants, increasing nodulation, while decrease rhizobia diversity in nodules.