Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses
ABSTRACT Biological nitrogen fixation efficiency can be increased by co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields and enabling the insertion of unusual crops, such as cowpea (Vigna unguiculata L. Wa...
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Universidade Federal de Campina Grande
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| author | Fernando S. Galindo Marcelo C. M. Teixeira Filho Edson C. da Silva Salatiér Buzetti Guilherme C. Fernandes Willian L. Rodrigues |
| author_facet | Fernando S. Galindo Marcelo C. M. Teixeira Filho Edson C. da Silva Salatiér Buzetti Guilherme C. Fernandes Willian L. Rodrigues |
| author_sort | Fernando S. Galindo |
| collection | DOAJ |
| description | ABSTRACT Biological nitrogen fixation efficiency can be increased by co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields and enabling the insertion of unusual crops, such as cowpea (Vigna unguiculata L. Walp.), in the agricultural production system in the Cerrado region of Brazil. Thus, this study aimed to evaluate the technical and economic viability of cowpea in the Cerrado region, as a function of N doses and co-inoculation of seeds with Azospirillum brasilense and Bradyrhizobium. The study was carried out in a no-tillage system in Selvíria, MS, Brazil. The experimental design was a randomized block design, with four repetitions, arranged in a 3 x 5 factorial scheme, corresponding to three types of inoculation (without inoculation - control, with two strains of Bradyrhizobium spp. SEMIA 6462 and SEMIA 6463 - the conventional inoculation of cowpea, and these two strains of Bradyrhizobium spp. plus A. brasilense strains Ab-V5 and Ab-V6); and five N doses (0, 20, 40, 80 and 160 kg ha-1), as urea, applied as topdressing. The following evaluations were performed: grain yield, total operating cost, effective operating cost, gross revenue, operating profit, profitability index, equilibrium price and equilibrium yield. Co-inoculation with A. brasilense increases cowpea grain yield, which makes cowpea production in the Cerrado region of Brazil technically and economically viable, without the need to apply N fertilizers in topdressing. |
| format | Article |
| id | doaj-art-7222e8de4e6d4be9b33fee6d98a9f9ee |
| institution | OA Journals |
| issn | 1415-4366 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-7222e8de4e6d4be9b33fee6d98a9f9ee2025-08-20T01:57:40ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1415-43661807-192924530431110.1590/1807-1929/agriambi.v24n5p304-311S1415-43662020000500304Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen dosesFernando S. GalindoMarcelo C. M. Teixeira FilhoEdson C. da SilvaSalatiér BuzettiGuilherme C. FernandesWillian L. RodriguesABSTRACT Biological nitrogen fixation efficiency can be increased by co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields and enabling the insertion of unusual crops, such as cowpea (Vigna unguiculata L. Walp.), in the agricultural production system in the Cerrado region of Brazil. Thus, this study aimed to evaluate the technical and economic viability of cowpea in the Cerrado region, as a function of N doses and co-inoculation of seeds with Azospirillum brasilense and Bradyrhizobium. The study was carried out in a no-tillage system in Selvíria, MS, Brazil. The experimental design was a randomized block design, with four repetitions, arranged in a 3 x 5 factorial scheme, corresponding to three types of inoculation (without inoculation - control, with two strains of Bradyrhizobium spp. SEMIA 6462 and SEMIA 6463 - the conventional inoculation of cowpea, and these two strains of Bradyrhizobium spp. plus A. brasilense strains Ab-V5 and Ab-V6); and five N doses (0, 20, 40, 80 and 160 kg ha-1), as urea, applied as topdressing. The following evaluations were performed: grain yield, total operating cost, effective operating cost, gross revenue, operating profit, profitability index, equilibrium price and equilibrium yield. Co-inoculation with A. brasilense increases cowpea grain yield, which makes cowpea production in the Cerrado region of Brazil technically and economically viable, without the need to apply N fertilizers in topdressing.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000500304&lng=en&tlng=envigna unguiculataplant growth-promoting bacteriabiological nitrogen fixationtotal operating costfamers profit |
| spellingShingle | Fernando S. Galindo Marcelo C. M. Teixeira Filho Edson C. da Silva Salatiér Buzetti Guilherme C. Fernandes Willian L. Rodrigues Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses Revista Brasileira de Engenharia Agrícola e Ambiental vigna unguiculata plant growth-promoting bacteria biological nitrogen fixation total operating cost famers profit |
| title | Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses |
| title_full | Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses |
| title_fullStr | Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses |
| title_full_unstemmed | Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses |
| title_short | Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses |
| title_sort | technical and economic viability of cowpea co inoculated with azospirillum brasilense and bradyrhizobium spp and nitrogen doses |
| topic | vigna unguiculata plant growth-promoting bacteria biological nitrogen fixation total operating cost famers profit |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000500304&lng=en&tlng=en |
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