Tiller density and tillering on Brachiaria brizantha cv. Marandu pastures inoculated with Azospirillum brasilense

Pedreira, B. C. e; Barbosa, P. L.; Pereira, Lilian Elgalise Techio; Mombach, M. A.; Domiciano, L. F.; Pereira, D. H.; Ferreira, A. C. de B.

doi:10.1590/1678-4162-9034

Cited by 18 publications

(16 citation statements)

References 14 publications

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“…The number of tillers was within the range of 430 m -2 in the treatment without mineral N in the first cutting, and 965 m -2 in the treatment with Azospirillum in the third cutting, both in the second year. Similar results have been verified in studies testing N fertilization in 'Marandu' palisade grass during the summer (Pedreira et al, 2017;Silva, Costa, Faquin, Oliveira, & Bernardes, 2013). The lack of tiller number response to N fertilization in the second and third cuttings, and accumulated cuttings as well, may be associated with sufficient N supply from the mineralization of soil organic matter.…”

Section: Discussionsupporting

confidence: 80%

“…palisade grass production and development (Pedreira et al, 2017), but the inoculation with Azospirillum brasiliense strains Ab-V5 and Ab-V6 did not result in increased tiller numbers (Table 1) Tiller response to N fertilization was only verified in the first cut in both years, while shoot dry mass increased only in the first cut of the second year. The number of tillers was within the range of 430 m -2 in the treatment without mineral N in the first cutting, and 965 m -2 in the treatment with Azospirillum in the third cutting, both in the second year.…”

Section: Discussionmentioning

confidence: 99%

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Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status

Heinrichs

Meirelles

Santos

et al. 2020

Semina: Ciênc. Agrár.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status

Heinrichs

Meirelles

Santos

et al. 2020

Semina: Ciênc. Agrár.

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“…As an alternative to intense tiller death caused by pasture, inoculation with A. brasilense emerges as a strategy to increase tillering in tropical grass under pasture conditions. Although Pedreira et al (2017) did not observe an increase in tillering when inoculating in brachiaria grass (Urochloa brizantha cv. Marandu), in the present study, there was a significant increase as a function of inoculation for all doses of N, except in the absence of N.…”

Section: Discussionmentioning

confidence: 85%

“…The good development of forage roots becomes very interesting in countries such as Brazil, which has a very expressive drought during the year (Pedreira et al, 2017) that reduces the production of pastures.…”

Section: Discussionmentioning

confidence: 99%

“…The practice of nitrogen fertilization considerably increases the cost of pasture production since its synthesis requires fossil fuel sources and most of the input is currently imported (Morais et al, 2012;Canto et al, 2016). Moreover, the benefits of nitrogen fertilization are only short term in highly weathered tropical soils, with accelerated loss due to leaching and volatilization, along with the risk of soil and water contamination by nitrate additions (Hungria et al, 2016;Pedreira et al, 2017). For this reason, it is important to develop agricultural practices to maintain or even increase production with greater sustainability (Di Salvo et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense

Leite

Santos

et al. 2019

Rev. Bras. Ciênc. Solo

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Using biological inputs to improve the efficiency of nitrogen fertilizers represents an alternative for the cultivation of grasses in tropical regions. Azospirillum brasilense is a species of plant growth promoting bacteria widely studied and used in inoculants. Thus, this study aimed to evaluate the performance of Mombasa grass (Megathyrsus maximus) in association with A. brasilense and nitrogen (N) fertilization.The study was conducted under field conditions in Araguaína-Tocantins State, between December 2017 and May 2018. The treatments were arranged in randomized blocks, in a 5 × 2 factorial arrangement, with five doses of N fertilization (0, 25, 50, 75, and 100 kg ha -1 ) combined with two inoculation treatments (inoculated and non inoculated), in four replicates. For the number of tillers and root production, the inoculation efficiency varied as a function of the supplied N doses. However, the percentage of leaf N was higher for inoculated plants regardless of the application of nitrogen. In the absence of nitrogen fertilization, it was possible to increase forage production by up to 36 % with inoculation.

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Herbage accumulation, canopy characteristics, and nutritive value of tropical grasses in the Amazon biome

et al. 2020

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Forage species diversification reduces risk associated with forage–livestock production. In the Amazon biome, an alternative is needed to ‘Marandu’ palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] because of Marandu death syndrome. Our objective was to compare herbage accumulation (HA), canopy characteristics, and nutritive value of Marandu with two alternative grasses, ‘Guará’ (Paspalum regnellii Mez) and ‘Tupi’ [Urochloa humidicola (Rendle) Morrone & Zuloaga]. During 2 yr, grasses were clipped to a 12‐cm stubble height every 28 (rainy season) or 42 d (dry season). Annual HA did not differ across years for Guará (13.7 Mg dry matter [DM] ha−1) and Tupi (12.2 Mg DM ha−1); however, Marandu HA was 30% less in the second than the first year. Marandu had greatest annual HA in the first year (15.5 Mg DM ha−1), and Guará was superior to the other grasses in the second year (13.5 Mg DM ha−1). Tupi had the least leaf proportion among grasses in both rainy and dry seasons, and its leaf proportion was greater in the dry than rainy season (715 vs. 610 g kg−1). Greatest stem proportion was observed in Tupi and the least stubble mass occurred in Guará (2000 kg DM ha−1). When differences in crude protein occurred, Tupi concentrations (80–130 g kg−1) were less than either Guará (97–157 g kg−1) or Marandu (81–139 g kg−1). Overall, Tupi and Guará HA and nutritive value support their recommendation as alternatives to Marandu monoculture in Amazon forage‐based livestock systems.

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Tiller density and tillering on Brachiaria brizantha cv. Marandu pastures inoculated with Azospirillum brasilense

Abstract: Tiller density and tillering on

Cited by 18 publications

References 14 publications

Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status

Azospirillum inoculation of 'Marandu' palisade grass seeds: effects on forage production and nutritional status

Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense

Herbage accumulation, canopy characteristics, and nutritive value of tropical grasses in the Amazon biome

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