Effect of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass during the deferment period

Sousa, Bráulio Maia de Lana; Santos, Manoel Eduardo Rozalino; Amorim, Philipe Lima de; Silveira, M. C. T. da; Rocha, Gabriel de Oliveira; Carvalho, Angélica Nunes de

doi:10.5433/1679-0359.2019v40n1p249

Cited by 8 publications

(8 citation statements)

References 17 publications

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“…The proper choice of plant species to be used in the deferment is essential, and characteristics, such as good growth potential in the beginning of autumn and a high leaf/stem ratio, are sought after to provide improved nutritional value to the accumulated forage. Therefore, species of the genus Urochloa have been recommended for deferment [2,3].…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

et al. 2021

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“…Among the management alternatives to balance the statehood of forage production is the deferment of pasture, which consists of selecting an area of the property and sealing it to grazing. In this way, it is possible to reserve the surplus of fodder produced in the water period for use in the dry period (SOUSA et al, 2019;CARVALHO et al, 2017). To do so, there is a need to choose grasses that are more tolerant to the sealing period and that have good productivity and quality (SILVA et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Gas exchange, chemical composition and productive characteristics of tropical grasses deferred II: cultivars BRS Paiaguás and BRS Piatã

Santos

Araújo

Cândido

et al. 2021

Rev. bras. saúde prod. anim.

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This study aimed to evaluate the physiological parameters, the productive characteristics, structural and chemical composition of Urochloa Brizantha cultivars BRS and BRS Piatã submitted to two deferment periods and three using times. The experimental design was randomized complete block design in a factorial scheme 2 x 2 x 3, being two grass cultivars (Paiaguás grass and Piatã grass), two deferment periods (rainy season and dry-rainy transition) and three sealing times (40, 80 and 120 days). It was observed that, in the rainy season, the grasses had higher leaf transpiration rate when used for 40 days of deferment (1.66 µmol m2/s). During the rainy season, the Stomatal conductance was detected only in the grasses used with shorter seal, with an average of 0.07 µmol m2/s. In contrast, in the period of transition, the concentration decreased to 0.02 µmol m2/s. In a general way, the BRS Paiaguás presented lower content of NDF. The shorter cycle provided greater biomass production of total forage during the period of rain, approximately 2.78 times more than the same pasture grass deferred during the transition period. Generally, the periods of deferment and moments of use cause effects on structural characteristics of pasture, being that the period of deferment of the transition period and used for 40 and 80 days may be a strategy for keeping animals in critical periods.

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“…For Marandu and Piatã grasses, there are scientific studies that allow us to understand the effects of stockpiled pasture management strategies on the the morphogenesis and structure of stockpiled canopies (Alves et al, 2019;Gouveia et al, 2017;Nogueira et al, 2020;Rocha et al, 2020;Sousa et al, 2019). However, for the Xaraés and Paiaguás grasses, there is still no scientific information about the morphogenesis of these grasses under stockpiling.…”

Section: Introductionmentioning

confidence: 99%

Morphogenesis of stockpiled Marandu, Piatã, Xaraés and Paiaguás brachiariagrass cultivars

Santos

Ferreira

Carvalho

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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The objective this study was to identify differences in the morphogenic patterns of four Urochloa brizantha cultivars (marandu, piatã, xaraés and paiaguás grasses) during the stockpiling period. A completely randomized design was used, with three replications, in experimental plots of 9m². The evaluations took place over 2 years. The grasses were stockpiled for 92 (Year 1) and 95 (Year 2) days. The leaf appearance rate of paiaguás grass was higher, compared to other grasses. In Year 1, the stem elongation rate of xaraés grass was higher than other grasses. At the end of stockpiling period of Year 1, the tiller population density (TPD) was higher in the paiaguás grass, intermediate in the xaraés and marandu grasses and lower in the piatã grass. At the end of the stockpiling period in Year 2, TPD was higher in the paiaguás grass canopy, intermediate in the marandu and piatã grasses canopies, and lower in the xaraés grass canopy. Paiaguás grass has greater leaf growth during the stockpiling period and is therefore suitable for use under stockpiled grazing. Xaraés grass has high stem elongation during the stockpiling period, which is why its use under stockpiled grazing must be accompanied by adjustments in pasture management.

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Effect of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass during the deferment period

Cited by 8 publications

References 17 publications

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

Signal Grass Deferred Pastures Fertilized with Nitrogen or Intercropped with Calopo

Gas exchange, chemical composition and productive characteristics of tropical grasses deferred II: cultivars BRS Paiaguás and BRS Piatã

Morphogenesis of stockpiled Marandu, Piatã, Xaraés and Paiaguás brachiariagrass cultivars

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