Nodulation, nitrogen uptake and growth of lima bean in a composted tannery sludge-treated soil
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Data
2019-01-01
Autores
Rocha, Sandra Mara Barbosa
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
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Resumo
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.
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Biological N fixation, Chromium, Industrial waste, Phaseolus lunatus
Como citar
Ciencia Rural, v. 49, n. 11, 2019.