Signal grass structure at different sites of the same pasture under three grazing intensities

Santos, Manoel Eduardo Rozalino; Fonseca, Dilermando Miranda da; Gomes, Virgílio Mesquita; Pimentel, Róberson Machado; Albino, Ronan Lopes; Silva, Simone Pedro da

doi:10.4025/actascianimsci.v35i1.11801

Cited by 4 publications

(3 citation statements)

References 7 publications

(1 reference statement)

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“…The highest percentage of S for the BC treatment, which did not differ from that for the B50 treatment, at the end of the deferral period (Table 4) in the samples obtained via direct cutting may be attributed to competition for light between plants, which favors stem elongation [21]. The highest percentages of DE for the B and B100 treatments, which differed from those for the B50 treatment (Table 7), may have been due to the high abundance of DT in these treatments (Table 6).…”

Section: Discussionmentioning

confidence: 86%

“…The deferment of a signal grass pasture generally results in an FI greater than 1.0 because of its decumbent growth form [5]. A high FI reflects prostrate growth in a pasture, while values close to one indicate that the pasture grows vertically [21]. In the present study, the FI ranged from 1.51 (control) to 2.07 (consortium), which may be attributed to the thin and flexible stems of signal grass, which promote falling during growth.…”

Section: Discussionmentioning

confidence: 99%

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Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

et al. 2021

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This study aimed to evaluate the accumulation, structural characteristics, and chemical composition of deferred signal-grass pastures that were subjected to four treatments: without nitrogen fertilization, intercropped with calopo (Calopogonium mucunoides), and fertilized with urea N (50 kg ha−1 and 100 kg ha−1) for 2 years. The design was in randomized blocks, with two blocks and two repetitions of each treatment per block. There were effects of the interaction between treatment and year on green dry mass, forage accumulation, density of vegetative tillers, and crude protein content (simulated grazing). The effects of the treatments on the height, falling index, green dry mass/dead dry mass ratio, number of dead, live and total tillers, and crude protein content (direct cutting) were also observed. Signal-grass–calopo-intercropping ensured adequate mass and forage accumulation and crude protein content equivalent to those of fertilized pastures. In addition, the intercropped pasture showed a higher percentage of leaves and a higher crude protein content compared with those for the other treatments (simulated grazing). The green dry mass/dead dry mass ratio was highest in the intercropped pasture and was equivalent to only that of the pasture fertilized with a low dose of nitrogen. Therefore, signal-grass–calopo-intercropping may be recommended for deferment.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

et al. 2021

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“…In Brazil, a large proportion of studies on grazing management focusing on plant characteristics and environment conditions are primarily grounded on rest intervals, stocking rates, and/or cutting intensity/fixed grazing, and they seldom respect the plant physiology, with no proper control of the structural characteristics of the forage sward (e.g., leaf area index), which are essential variables for proper defoliation management and use of the produced forage (SANTOS et al, 2013). As a consequence, pasture performance is rather variable and inconsistent, resulting in a high level of dissatisfaction on the part of producers and technicians of this sector.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the availability of mass of forage: morphological responses and chemical composition of Tanzania grass subjected to two pasture-management strategies

Camilo¹,

Fernandes²,

Oliveira³

et al. 2020

Biosci. J.

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The objective of this study was to evaluate the morphogenetic traits and chemical composition of Tanzania grass using a fixed rest period or according to light interception at 95%. The treatments consisted of evaluations of two Tanzania-grass pasture-management strategies: (1) LI95 - animals entered the paddocks when the pasture reached 95% of light interception (LI), with three days of paddock occupation; and (2) FR - the pasture was managed with a defoliation interval (DI) of 30 days, and three days of paddock occupation. The experimental area consisted of 4 ha, with 22 paddocks per treatments. Ten recently-calved cows were used per treatment in year 1, and eight cows were used per treatment in year 2. Sward height, forage mass, and morphological components and their chemical composition were evaluated. The management strategies used on the Tanzania grass pasture did not affect pasture mass or height in the pre- and post-grazing conditions, or the proportion of stems. However, the proportion of leaves was greater in the paddocks with 95% light interception. The crude protein content was higher in the paddocks with 95% light interception; the other nutrients were not affected. In conclusion, management adopting 95% light interception does not influence morphogenetic traits. Nevertheless, it promotes an increase in the crude protein content of grasses.

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Seasonal climate impact on Brazilian pasture (Brachiaria brizantha cv Marandu): growth rate, CO2 efflux, and irrigation strategies

Pereira-Flores

Justino

Rodrigues

et al. 2022

Theor Appl Climatol

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Signal grass structure at different sites of the same pasture under three grazing intensities

Cited by 4 publications

References 7 publications

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

Evaluation of the availability of mass of forage: morphological responses and chemical composition of Tanzania grass subjected to two pasture-management strategies

Seasonal climate impact on Brazilian pasture (Brachiaria brizantha cv Marandu): growth rate, CO2 efflux, and irrigation strategies

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