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Fixação biológica de N₂ no feijoeiro submetido a dosagens de inoculante e tratamento químico na semente comparado à adubação nitrogenada

2007; Editora da Universidade Estadual de Maringá (Eduem); Volume: 29; Issue: 4 Linguagem: Inglês

10.4025/actasciagron.v29i4.416

1807-8621

Fábio Fernando de Araújo, Fabio Gil Carmona, Carlos Sérgio Tiritan, José Eduardo Creste,

Growth and nutrition in plants

The inoculation of bean is a technique spread out by research, but it is not very much used by farmers. However, considering the low purchasing power of the majority of farmers who cultivate beans and the low average productivity, the use of this low cost technique can be an excellent alternative to increase productivity.The aim of this work was to evaluate the inoculation with Rhizobium and the nitrogenous feeding of beans. The experiment was conducted in 2004, in Colorado, state of Paraná. Results showed that inoculation was an efficient technique in supplying nitrogen to the culture, when compared with the addition of mineral nitrogen. The “carioca” bean variety showed positive response to the inoculation with good levels of nodulation and yield. The increase of inoculation level did not result in nodulation and productivity gains, though the use of fungicide in the seed affected the productivity.