Nitrogen and phosphorus fertilizer application to Elephant grass (&lt;i&gt;Cenchrus purpureus&lt;/i&gt; syn. &lt;i&gt;Pennisetum purpureum&lt;/i&gt;) cultivar ‘Cameroon’ in an arenosol in Rio Grande do Norte, Brazil

Oliveira, Luiz Eduardo Cordeiro de; Oliveira, Fábio Henrique Tavares de; Silva, Gualter Guenther Costa da; Bezerra, Marcio Gleybson da Silva; Morais, Eric George; Bezerra, Gabriel F.R.; Danino, Giovana S.; Oliveira, Ermelinda Maria Mota; Sá, Francisco Vaniés da Silva

doi:10.17138/tgft(10)280-287

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…When defoliation management and nitrogen fertilization are adequate, they promote growth in forage species, reducing their cycle and increasing production (SOUZA; BITTAR, 2021). Efficiency in the use of nitrogen promotes greater tillering and more vigorous regrowth, as it favors cellular recovery (SOUZA; BITTAR, 2021;OLIVEIRA et al, 2022).…”

Section: Revmentioning

confidence: 99%

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Cajá,

Silva,

Oliveira

et al. 2023

Rev. Caatinga

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Management of nitrogen fertilization and light interception of pastures contributes to forage production in regions with low water availability. Therefore, the objective was to evaluate the effect of different nitrogen doses and light interception levels on the growth of Panicum maximum cv. Tanzania under different irrigation managements. The experiment was carried out in a greenhouse, using a factorial scheme (5 x 2 x 2), corresponding to five irrigation depths (40, 60, 80, 100, and 120% of actual evapotranspiration), two canopy light interception levels (90 and 95%), and two nitrogen doses (300 and 600 kg N ha-1 year-1). The highest biomass production occurs under irrigation with 120% of evapotranspiration. However, the best structural characteristics (tillering and number of leaves) occur with 100% of evapotranspiration, regardless of nitrogen dose and light interception level. Interruption of growth with 95% of incident light and fertilization with 600 kg N ha-1 year-1 promoted greater tillering, number of leaves and leaf length, regardless of the irrigation level. Tanzania grass management with an interruption of growth with 95% of incident light, 600 kg N ha-1 year-1, and irrigation with 80% of actual evapotranspiration led to tillering and number of leaves only 11% lower than the values found in the other treatments irrigated with 100% of actual evapotranspiration. Interruption of growth with 95% of incident light and fertilization with 600 kg N ha-1 year-1 improve the performance of Tanzania grass under deficit irrigation.

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Section: Revmentioning

confidence: 99%

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Cajá,

Silva,

Oliveira

et al. 2023

Rev. Caatinga

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Optimization of bio-oil production parameters from the pyrolysis of elephant grass (Pennisetum purpureum) using response surface methodology

Ikpeseni,

Sada,

Efetobor

et al. 2024

Clean Energy

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The need to increase bio-oil yield from biomass and enhance its fuel properties has driven research into optimizing the pyrolysis process. This study investigated the influence of three key process parameters—temperature, heating rate, and nitrogen flow rate—on the pyrolysis of elephant grass (Pennisetum purpureum) in a fixed-bed reactor. Response surface methodology was used to study the impact of the aforementioned variables on bio-oil yield to improve its production efficiency. Proximate analysis of the biomass revealed 79.24 wt% volatile matter, 14.22 wt% fixed carbon, and 5.86% ash, with ultimate analysis showing 45.44% carbon, 5.59% hydrogen, and 40.95% oxygen. The high volatile matter content and favourable carbon and hydrogen percentages indicate that elephant grass is a viable energy source due to its potential for high bio-oil yield and energy content. The resulting bio-oil exhibited a higher heating value of 20.9 MJ/kg, indicating its suitability for various heating applications. A second-order regression model was developed for bio-oil yield, with optimal conditions identified as a temperature of 550°C, a heating rate of 17°C/min, and a nitrogen flow rate of 6 ml/min. The study achieved an optimal bio-oil yield of 59.03 wt%, and the model’s high R² value of 0.8683 from analysis of variance analysis confirmed its predictive accuracy. This research highlights elephant grass as a sustainable feedstock for bio-oil production, offering valuable insights into optimizing pyrolysis conditions to enhance bio-oil yield, thus advancing biofuel technology.

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Manejo del pasto elefante de riego intercalado con leguminosas en la región semiárida

do Vale Bezerra,

Emerenciano Neto,

Da Cruz da Silva

et al. 2024

Rev. Mex. Cienc. Pecu.

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El presente estudio tuvo como objetivo evaluar la producción y composición química del pasto elefante (Pennisetum purpureum sin. Cenchrus purpureus cv. Mott) intercalado con Cajanus cajan (Mandarim y Fava Larga) y Stylosanthes guianensis (Bela) en comparación con su cultivo en monocultivo bajo manejo de riego en la región semiárida. El experimento se llevó a cabo en el Campus de Ciencias Agrícolas de la Universidad Federal del Valle de São Francisco, Petrolina, Brasil. El experimento consistió en los siguientes tratamientos: pasto elefante intercalado con cada leguminosa y dos tipos de monocultivo, uno con fertilización nitrogenada (200 kg ha-1) y el otro sin ella. Las leguminosas ayudaron a mejorar la calidad del dosel forrajero, con altos niveles de proteína cruda. La fertilización nitrogenada aumentó la masa de forraje producido por el pasto elefante. El análisis acumulativo de todos los cortes mostró que el cultivo intercalado de elefante con el cultivar Bela logró el mayor rendimiento, con 13.49 Mg ha-1, debido principalmente al aumento en la población de Bela, que demostró ser superior a las otras leguminosas a lo largo de los cortes. Con base en los resultados, se recomienda el cultivo intercalado de elefante con el cultivar Bela como la estrategia más efectiva para maximizar la producción de forraje en la región semiárida.

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Nitrogen and phosphorus fertilizer application to Elephant grass (<i>Cenchrus purpureus</i> syn. <i>Pennisetum purpureum</i>) cultivar ‘Cameroon’ in an arenosol in Rio Grande do Norte, Brazil

Cited by 3 publications

References 2 publications

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Irrigation management, light interception, and nitrogen in Tanzania grass cultivation

Optimization of bio-oil production parameters from the pyrolysis of elephant grass (Pennisetum purpureum) using response surface methodology

Manejo del pasto elefante de riego intercalado con leguminosas en la región semiárida

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