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EFFECT OF BRADYRHIZOBIUM SP., NITROGEN, MOLYBDENUM, AND OTHER MICRONUTRIENTS ON THE CHICKPEA YIELD

Chicpkpea (Cicer arietinum L.) is an unknown crop in Brazil. This study was conducted in a soil where chickpea was never cultivated. Two experiments were carried out at Coimbra, in the microregion of Viçosa, Minas Gerais State, Brazil, one with the cultivar IAC Marrocos and the other with the cultivar IAC India-4. A 24 factorial was used, in which the factors were: Bradyrhizobium (seeds inoculated or not), nitrogen fertilization as side dressing (0 or 30 kg.ha-1 of N), molybdenum as foliar spray (0 or 40 g.ha-1 of Mo), and micronutrients (application or not of Zn, B, Cu, Fe, Mn, and Mo). The equivalent to 450 kg.ha-1 or of ordinary superphosphate was applied in each plot. Inoculation caused a yield increase of 104% for the cv. IAC Marrocos and 187% for the cv. IAC India-4, in relation to the check plot yield. The figures for N fertilization were 22% and 59%, respectively. When inoculation was used, N fertilization had no effect. The micronutrients had some positive effect on IAC Marrocos, but Mo as foliar spray did not increase yield.

Cicer arietinum; Bradyrhizobium; nitrogen fertilization; micronutrients


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