Seed inoculation with Azospirillum brasilense and N fertilization of corn in the Cerrado biome
| Autor: | Ana Carolina Pereira de Vasconcelos, Thiago Prudente Siqueira, Regina Maria Quintão Lana, Marcos Vieira de Faria, Aline Arantes Nunes, Ângela Maria Quintão Lana |
|---|---|
| Jazyk: | English<br />Portuguese |
| Předmět: | |
| Zdroj: | Revista Ceres, Vol 63, Iss 5, Pp 732-740 |
| Druh dokumentu: | article |
| ISSN: | 2177-3491 0034-737x |
| DOI: | 10.1590/0034-737x201663050019 |
| Popis: | ABSTRACT There is a great interest to reduce doses and increase efficiency of inputs in agriculture. One alternative to lower doses of N fertilizers in corn is seed inoculation with diazotrophic bacteria, which can fix atmospheric N in soil. This study aimed to evaluate the effect of N doses-in the absence and presence of Azospirillum brasilense-on plant nutritional status at different growth stages and on seed yield of corn. The experiment was conducted during the 2011/2012 production season on a typical cerrado soil in Uberlândia, Triângulo Mineiro. The experimental design was randomized blocks with six repetitions. The treatments consisted of five N doses and the absence or presence of Azospirillum brasilense (100 mL ha-1) as a seed inoculant. A commercial product with minimum concentration of 2x108 CFU mL-1 100 mL ha-1 was used. Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage. Corn yield increased with N doses up to 150 kg N ha-1. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|