Produtividade e características agronômicas de Brachiaria brizantha cv. Paiaguás submetida a doses de nitrogênio sob cortes

Germano, Laura; Vendruscolo, Marice Cristine; Daniel, Diego Fernando; Dalbianco, Alessandro Bandeira

doi:10.17523/bia.2018.v75.e1419

Cited by 10 publications

(14 citation statements)

References 13 publications

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“…They showed that accumulated production before four cuts at the higher dose yielded the maximum production of 23,200.00 kg ha -1 DM. In the present study, during the 1st cycle, a greater yield of 21,061.69 kg was obtained with 328 kg ha -1 N. Therefore, similar results were obtained, although the tests occurred in different geographic regions and with different sources of N. Germano et al (2018) and Froehlich et al (2019), who also tested Paiaguás palisade grass in Red Oxisol soil, observed a linear response in DM yield up to 250 kg ha -1 of N, which was the maximum rate of N tested. Productivity was from 5,860.00 to 8,127.00 kg ha -1 of DM, respectively.…”

Section: Resultssupporting

confidence: 86%

“…In the first cycle, the N rates that provided the greatest density of tillers the 1st (p<0.01), 2nd (p<0.01), 3rd (p<0.05), and 4th (p<0.01) growth periods were 116, 159, 173, and 253 kg N ha -1 , respectively. Regarding Paiaguás palisade grass height Germano et al (2018) on Dystrophic Oxysoil, N rates between 0 to 250 kg ha -1 were evaluated and they observed quadratic responses with the greatest height of 0.59 m using 210 kg ha -1 . Froehlich et al (2019) using the same soil, grass, and N rate, observed a greater height of 0.63 m 150 kg ha -1 of N. Bezerra et al (2019) using Paiaguás palisade grass in the Mato Grosso state region obtained heights between 53.55 and 55.48 cm at 30 and 60 d after sprouting during tests using wood ash as a fertilizer in soils under water stress.…”

Section: Resultsmentioning

confidence: 99%

“…These responses were more discrete than in the first cycle, likely because of the advanced development of the plants. Germano et al (2018) and Froehlich et al (2019) in area with Dystrophic Red Oxisol, tested Paiaguás palisade grass with N fertilization rates of 0 and 250 kg ha -1 . They observed a linear response in the increase tiller density with 440 and 571 tillers m -², respectively.…”

Section: Resultsmentioning

confidence: 99%

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Nitrogen Fertilization of Paiaguás Grass: Production and Nutrition

Domingues

Santos

Backes

et al. 2021

Rev. Agric. Neotrop.

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Nitrogen (N) is a nutrient associated with the development of plant shoots, which makes it a vitally important element for the maintenance and sustainability of pasture. The goal of this study was to evaluate the effects of nitrogen fertilization on the productive and nutritional traits of Urochloa brizantha Paiaguás, as well as the efficiency of digital imaging and the use of a chlorophyll meter in obtaining green color indices. The experiment was conducted in the field on the Escola farm at the State University of Goiás, located in São Luís de Montes Belos, GO. A randomized-block design with five treatments and four replicates was adopted. Treatments consisted of four N rates (0, 75, 150, 300, and 600 kg ha -1 ) in the form of ammonium sulfate. The grass res ponded up to the N rate of 374 kg ha -1 for production-related traits, such as plant height, number of tillers, and shoot dry matter. Maximum dry matter yields were 21,225 and 13,710 kg ha -1 year -1 for the first and second cycles, respectively. Both the chlorophyll meter and digital imaging were efficient in indicating plant N nutritional status. Paiaguás grass responds to N similarly to other Urochloa brizantha cultivars.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Nitrogen Fertilization of Paiaguás Grass: Production and Nutrition

Domingues

Santos

Backes

et al. 2021

Rev. Agric. Neotrop.

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“…Basilisk has, on average, 10 to 11 live leaves per tiller, while cv. Xaraés has approximately 3 to 4 live leaves per tiller (Galzerano, Malheiros, Raposo, Morgado, & Ruggieri, 2013), and cvs Marandu, Paiaguás and Piatã possess, on average, 4 to 5 leaves per tiller (Casagrande et al, 2010;Orrico Júnior, Centurion, Sunada, & Vargas Júnior 2013;Germano, Vendruscolo, Daniel, & Dalbianco 2018). Leaf appearance rate (LAR, cm tiller -1 day -1 ), leaf elongation rate (LER, cm tiller -1 day -1 ), stem elongation rate (SER, cm tiller -1 day -1 ), leaf senescence rate (LSR, cm tiller -1 day -1 ), leaf lifespan (LLS, days), final leaf length (FLL, cm), number of live leaves (NLL), herbage mass (HM, kg ha -1 ), leaf mass (LM, kg ha -1 ), stem mass (SM, kg ha -1 ), dead material mass (DMM, kg ha -1 ), undesirable-plant mass (UPM, kg ha -1 ), leaf:stem ratio (L:S).…”

Section: Morphogenetic and Structural Variablesmentioning

confidence: 99%

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Rodrigues

Difante

Gurgel

et al. 2020

Acta Sci. Anim. Sci.

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This study aimed was the establishment of the genus Brachiaria in the Brazilian semi-arid region. The experiment was conducted from April to June 2016, as a randomized-block experimental design with five treatments and four replicates. Treatments were represented by five Brachiaria cultivars, namely, Marandu, Paiaguás, Piatã, Xaraés and Basilisk. Morphogenetic (leaf appearance rate, leaf elongation rate e stem elongation rate) and structural characteristics (final leaf length, tiller population density e number of leaves per tiller, forage mass, leaf blade mass, stem mass, senescent material mass and leaf:stem ratio) of the forage cultivars were evaluated. Canopy height fitted a linear regression model (P<0,05), with estimated daily increases of 0.50, 0.53, 0.53, 0.54 and 0.56 cm for cvs Basilisk, Marandu, Paiaguás, Piatã and Xaraés, respectively. The number of live leaves in cvs Basilisk and Paiaguás increased linearly (p < 0.05), by 4.3 and 2.8 leaves per tiller, respectively, during the 60-day period. The recommended height at which the growth of Brachiaria cultivars should be interrupted is upon reaching 25 to 35 cm. In the soil-climatic conditions of the Brazilian semi-arid region, the Brachiaria cultivars Basilisk, Marandu, Paiaguás, Piatã and Xaraés are established at 75 days after sowing, which is the recommended time for performing the first harvest or lenient grazing to stimulate tillering.

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“…Em estudos com Brachiaria brizantha cv. Paiaguás, adubada com diferentes doses de nitrogênio, avaliando quatro cortes,Germano et al (2018) verificaram efeito das doses de nitrogênio na produção de massa seca, sendo que a relação folha:colmo não foi influenciada significativamente nos cortes avaliados, bem como no somatório dos quatro cortes avaliados juntos.Dougherty e Rhykerd (1985) afirmam que é de fundamental importância o estudo da eficiência da utilização do nitrogênio em sistemas produtivos, onde as quantidades de nitrogênio aplicadas ultrapassam a capacidade que as plantas têm de absorver esse nutriente, pois o mesmo pode ser lixiviado e acumular-se nos tecidos, reduzindo sua eficiência de aproveitamento pelas plantas e não trazendo os benefícios esperados.De acordo comSilva et al (2013), a resposta da pastagem à aplicação de fertilizantes nitrogenados em uma região específica, depende principalmente do suprimento de nitrogênio no solo e das condições climáticas.…”

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Produção de forragem e características agronômicas de Capim-Piatàsob doses de nitrogênio

et al. 2020

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The objective of this work was to evaluate the dry mass production and other agronomic traits of Brachiaria brizantha cv. Piatã receiving different nitrogen doses in the third year of production. The experiment was performed in the experimental area of the University of the State of Mato Grosso, Tangará da Serra-MT. Six nitrogen doses were studied (0, 50, 100, 150, 200, and 250 kg N/ha) in a randomized complete block design with four replications. Four cuts were performed and the following variables were analyzed: forage canopy height, production of forage mass and components, tiller population density, number of leaves and dry mass per tiller, and leaf/stem ratio. The collected data were submitted to analysis of variance by the F test and, if significant (P ≤ 0.05), regression analysis was performed. The forage canopy height, tiller population density, dry mass per tiller, dry mass/ha, dry mass of leaves/ha, and dry mass of shoots/ha of piatã grass were influenced (P ≤ 0.05) and increased with increasing nitrogen doses up to 250 kg/ha. Dry mass content, number of leaves per tiller, leaf/ stem ratio and dry mass of senescent material/ha did not respond to the nitrogen doses. Thus, it can be concluded that the nitrogen doses tested significantly increase the productive traits of piatã grass and that the dose of 250 kg N/ha provides the best results.

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Produtividade e características agronômicas de Brachiaria brizantha cv. Paiaguás submetida a doses de nitrogênio sob cortes

Cited by 10 publications

References 13 publications

Nitrogen Fertilization of Paiaguás Grass: Production and Nutrition

Nitrogen Fertilization of Paiaguás Grass: Production and Nutrition

Establishment of Brachiaria cultivars in the soil-climatic conditions of the Brazilian semi-arid region

Produção de forragem e características agronômicas de Capim-Piatàsob doses de nitrogênio

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