Interaction of biological nitrogen fixation with sowing nitrogen fertilization on common bean in the two seasons of cultivation in Brazil

Sowing nitrogen (N) fertilization can limit biological nitrogen fixation (BNF) reducing common bean yield. The aim of this study was to evaluate the effect of sowing N fertilization plus inoculation on the growth and yield of plants in the two seasons of cultivation in Brazil. In the dry season, N f...

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Bibliographic Details
Published in:Journal of plant nutrition 2018-04, Vol.41 (6), p.774-781
Main Authors: Barros, Rodrigo Luiz Neves, de Oliveira, Leandro Barbosa, Magalhães, Welliton Barros, Médici, Leonardo Oliveira, Pimentel, Carlos
Format: Article
Language:English
Subjects:
Agricultural practices
Agronomy
Chlorophyll
Cultivation
Dry season
Fertilization
Inoculation
leaf soluble protein
Nitrogen
Nitrogen fixation
Nodules
nutrient use efficiency
Phaseolus vulgaris L
Rainy season
Rhizobium tropici
Seasons
symbiotic nitrogen fixation
Yield
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Summary:Sowing nitrogen (N) fertilization can limit biological nitrogen fixation (BNF) reducing common bean yield. The aim of this study was to evaluate the effect of sowing N fertilization plus inoculation on the growth and yield of plants in the two seasons of cultivation in Brazil. In the dry season, N fertilization and inoculation promoted a greater shoot dry weight and higher pod number and yield than only inoculated. In contrast, in the rainy season, this treatment promoted no increase in shoot dry weight and yield compared with the inoculated alone. The number of nodules was greater for the inoculated alone treatment, but nodule weight was not affected by N fertilization in either season. Therefore, sowing N fertilization and inoculation can be an agronomic practice to achieve a higher common bean yield in the dry season, while in the rainy season, the inoculation without N fertilization can support a high yield at a lower cost.
ISSN:0190-4167
1532-4087
DOI:10.1080/01904167.2018.1426016