DSpace Coleção: Artigo em periódico indexado (CPACP)Artigo em periódico indexado (CPACP)https://www.alice.cnptia.embrapa.br/alice/handle/item/241392026-05-21T01:55:13Z2026-05-21T01:55:13ZIntegrating deficit irrigation and bacterial inoculation to mitigate water stress and enhance maize productivity in semiarid regions.NOGUEIRA, D. B.SILVA, J. L. P. daGIROLDO, A. B.SILVA, E. F. F. eSILVA, G. F. daSOUSA, G. G. deARRUDA, R. da S.SOUSA, K. C. dePUTTI, F. F.SILVA, A. O. dahttps://www.alice.cnptia.embrapa.br/alice/handle/doc/11867422026-05-17T22:09:28Z2026-01-01T00:00:00ZTítulo: Integrating deficit irrigation and bacterial inoculation to mitigate water stress and enhance maize productivity in semiarid regions.
Autoria: NOGUEIRA, D. B.; SILVA, J. L. P. da; GIROLDO, A. B.; SILVA, E. F. F. e; SILVA, G. F. da; SOUSA, G. G. de; ARRUDA, R. da S.; SOUSA, K. C. de; PUTTI, F. F.; SILVA, A. O. da
Conteúdo: Water scarcity is one of the main constraints on maize production in semiarid regions, making it essential to adopt management strategies that reconcile water savings, crop resilience, and economic viability. This study evaluated the effects of deficit irrigation strategies integrated with the use of bioinputs on physiological, productive, and economic parameters of maize grown under field conditions in the Brazilian semiarid region over two growing seasons (2023 and 2024). The experiment was conducted using a randomized complete block design with a split-plot arrangement. Irrigation strategies comprised full irrigation (FI; 100% of crop water requirements), continuous deficit irrigation (RD50%; 50% throughout the crop cycle), and stage-specific controlled deficit irrigation (50%) imposed during the vegetative (CDV50%), flowering/grain formation (CDF50%), and grain-filling (CDG50%) stages, while seed treatments involved inoculation with Bacillus aryabhattai, coinoculation with B. aryabhattai + Azospirillum brasilense, and control treatments. Physiological variables, yield components, water use efficiency, the crop sensitivity coefficient to water deficit (Ky), and economic indicators were assessed. Controlled deficits irrigation, particularly under CDV50%, maintained grain yield comparable to FI (6465.80 kg ha−1, in second growing season), whereas RD50% reduced yield in 26%. Inoculation treatments enhanced gas exchange, carboxylation efficiency, and water use efficiency, resulting in higher agricultural income under specific production systems. The CDV50% strategy combined with coinoculation showed the greatest potential as a sustainable approach for maize production in semiarid environments and reduced the water use by up to 18.9%.2026-01-01T00:00:00ZModeling impacts of N sources on N2O emissions in long-term crop rotation system in Brazils Cerrado using DNDCv.CAN.SOARES, J. R.FREITAS, A. C. R. deALVES, B. J. R.SMITH, W.GRANT, B.DRURY, C. F.JANTALIA, C. P.CARVALHO, M. da C. S.MADARI, B. E.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11849272026-03-08T01:32:47Z2026-01-01T00:00:00ZTítulo: Modeling impacts of N sources on N2O emissions in long-term crop rotation system in Brazils Cerrado using DNDCv.CAN.
Autoria: SOARES, J. R.; FREITAS, A. C. R. de; ALVES, B. J. R.; SMITH, W.; GRANT, B.; DRURY, C. F.; JANTALIA, C. P.; CARVALHO, M. da C. S.; MADARI, B. E.
Conteúdo: Predicting N2O emissions can help identify crop production practices and environmental conditions for mitigation. The objectives were to calibrate and validate the DeNitrification-DeComposition (DNDCv.CAN) model to simulate N2O emission in crop rotation (CR) systems in Brazil’s Cerrado biome, using different N fertilizer sources. Field data were obtained from a CR experiment with maize and common beans cultivated under no-till for 10 years. Treatments were: Zero-N, calcium ammonium nitrate (CAN), urea (UR), and ammonium sulfate (AS), with 5 replicates. Measured data including N2O fluxes, NH3 volatilization, soil NH4+and NO3-, water-filled pore space (WFPS), and grain yields were used to calibrate and validate the DNDCv.CAN. The model acceptably captured the daily N2O emissions associated with different N sources, although episodic peaks were over or under-predicted. Correlation coefficient was 0.62 during calibration, with a mean absolute error of 17 g N2O-N ha-1 day-1, close to average measured (18 g ha-1 d-1), and simulated (17 g ha-1 day-1) emissions. Accumulated measured N2O-N emissions were 1.19, 4.38, 3.17, and 2.56 kg N2O-N ha-1 for Zero-N, CAN, UR, and AS, respectively, whereas the simulated were 1.13, 3.44, 2.24, and 3.32 kg N2O-N ha-1. The NH3, NH4+, NO3-, WFPS, and yields were also fairly simulated. Soil hydrologic parameters were adjusted in the model using a built in pedotransfer function to improve the simulations, which should be further investigated. The DNDCv.CAN effectively simulated cumulative N2O emissions from different N sources applied to CR under tropical conditions, making it valuable for evaluating potential emissions and mitigation strategies.2026-01-01T00:00:00ZPerfil sensorial de análogo de hambúrguer vegetal à base de coprodutos de babaçu e proteínas vegetais.SANTOS, V. S. DO A.SOUSA, P. H. M. DENUNES, G. M. V. C.BENEVIDES, S. D.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11746722025-04-12T16:27:14Z2025-01-01T00:00:00ZTítulo: Perfil sensorial de análogo de hambúrguer vegetal à base de coprodutos de babaçu e proteínas vegetais.
Autoria: SANTOS, V. S. DO A.; SOUSA, P. H. M. DE; NUNES, G. M. V. C.; BENEVIDES, S. D.
Conteúdo: A crescente preocupação com o impacto ambiental e a busca por alternativas alimentares sustentáveis têm impulsionado o desenvolvimento de produtos plant-based. Este estudo objetivou elaborar hambúrgueres vegetais utilizando resíduos de coco babaçu e outros ingredientes regionais, explorando seu perfil sensorial e aceitação. Quatro formulações foram desenvolvidas com diferentes proporções de fibra de coco babaçu e óleo de coco. Os hambúrgueres foram avaliados por análises sensoriais, incluindo os métodos Check-All-That-Apply (CATA) e Rate-All-That-Apply (RATA), e submetidos a testes de aceitação e intenção de compra. Os resultados demonstraram que a coloração e o sabor foram significativamente influenciados pelas proporções de fibra e óleo de coco. A formulação com maior teor de óleo (15F25G) foi associada a atributos como "maciez" e "suculência", enquanto a formulação com maior teor de fibra (35F5G) apresentou características mais densas e fibrosas. O "aroma de coco" foi unanimemente identificado e bem aceito em todas as formulações. O "sabor picante" destacou-se em formulações intermediárias, como 20F20G e 30F10G, indicando o impacto positivo do equilíbrio entre fibra e óleo de coco nos atributos sensoriais. A análise de intenção de compra revelou maior preferência pelas formulações 35F5G e 15F25G, sugerindo que tanto a textura firme quanto a maciez podem atrair diferentes perfis de consumidores. Conclui-se que o aproveitamento de resíduos de coco babaçu em hambúrgueres vegetais não apenas promove inovação e sustentabilidade, mas também atende às expectativas sensoriais e de mercado, demonstrando seu potencial para fortalecer a economia circular e valorizar recursos regionais.2025-01-01T00:00:00ZDehydrated cashew apple in different grinding sizes to sheep.ARAÚJO, A. R.COSTA, J. B.ROGERIO, M. C. P.CARNEIRO, M. do S. de S.MUNIZ, L. C. M.FONTENELE, R. M.SILVA, W. L.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11712802025-03-16T06:53:33Z2022-01-01T00:00:00ZTítulo: Dehydrated cashew apple in different grinding sizes to sheep.
Autoria: ARAÚJO, A. R.; COSTA, J. B.; ROGERIO, M. C. P.; CARNEIRO, M. do S. de S.; MUNIZ, L. C. M.; FONTENELE, R. M.; SILVA, W. L.
Conteúdo: The cashew pseudo fruit can be used to animal feeding in tropical and subtropical countries as Brazil, Ivory Coast and Vietnam. Thus, our objective was to evaluate the intake, digestibility of nutrients and nitrogen balance of dehydrated cashew apple by-product to sheep. The experiment was carried out with 24 sheep in a completely randomized design with the treatments distributed in a 4 x 2 factorial scheme to test the inclusion (11, 21, 28 and 33% dry matter basis) and the grinding sizes (3 and 19 mm diameter) of dehydrated cashew apple by-product. To grinding sizes there was no effect to intake and digestibility, suggesting the use of dehydrated cashew apple by-product either finely or coarsely milled. The inclusion up to 33% of dehydrated cashew apple by-product inclusion did not affect voluntary intake and nitrogen balance. However, when including above 21%, there was a reduction of ether extract digestibility and more than 28% reduced dry matter and organic matter digestibility.2022-01-01T00:00:00Z