| Autor: |
Fernandes Souza, Jucinéia, Rigueira, João Paulo Sampaio, Brant Albuquerque, Carlos Juliano, Júnior, Vicente Ribeiro Rocha, Soares dos Santos, Alexandre, da Cunha Siqueira Carvalho, Cinara, Barbosa Leal, Dijair, Marques Mendes, Bernado, Augusto da Costa Parrella, Rafael, Késsia Oliveira de Jesus Silva, Ranney, Pinto Monção, Flávio |
| Zdroj: |
Journal of Applied Animal Research; December 2023, Vol. 51 Issue: 1 p424-433, 10p |
| Abstrakt: |
ABSTRACTThe objective of this study was to evaluate sorghum hybrids associated or not associated with Azospirillum brasilenseand nitrogen fertilization (N) during planting on the yield, fermentative profile, and nutritional value of the respective silages. Five sorghum hybrids (Volumax, 201813B, 201814B, 201709B, BRS716) were evaluated with three nitrogen fertilization strategies using urea (100 kg ha−1of N) and Azospirillum brasilense, and urea (100 kg ha−1of N)/A. brasilensein association. A randomized block design was used in a 5 × 3 factorial scheme, with five hybrids, three fertilization strategies and three replications (blocks). The useful area of each experimental unit was 3 m x 3 m. The biomass sorghum hybrids showed a dry matter (DM) production (P = 0.01) 48.31% higher than the DM production of the Volumax forage (mean of 17.49 t ha−1of dry matter). There was no difference between the sorghum hybrid silages in the pH values (mean of 4.11; P = 0.68), gas losses (mean of 3.74% of DM; P = 0.19). The sorghum hybrids biomass 201709B and BRS 716 showed better digestible and DM productivity. Azospirillum brasilensecan be used as a nitrogen fertilization strategy in partial or total replacement of urea. |
| Databáze: |
Supplemental Index |
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