Eficiência de genótipos de Brachiaria brizanthaStapf. (Syn: Urochloa brizantha) na produção de biomassa sob aplicação de fósforo

Camacho, Marcos Antônio; Silveira, L.P.; Silveira, Murilo Vargas da

doi:10.1590/1678-4162-6763

Cited by 5 publications

(5 citation statements)

References 15 publications

(7 reference statements)

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“…Grasses did differ, however, in HA during the warm season (Table 2), which may be a result of differences in canopy architecture or plant-part composition during more favorable weather conditions (daylength duration and temperature). Contrasting with present results, Camacho, Silveira, and Silveira (2015) compared Arapoty, Capiporã, Marandu, Piatã, and Xaraés brachiariagrasses with and without phosphorus fertilization, and Arapoty had one of the greatest HAs, outyielding Capiporã. The HA was less in Year 2 (Table 3) in both warm and cool seasons, contributing to year × season interaction.…”

Section: Annual and Seasonal Herbage Accumulationcontrasting

confidence: 99%

Seasonal herbage accumulation and canopy characteristics of novel and standard brachiariagrasses under N fertilization and irrigation in southeastern Brazil

et al. 2020

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Understanding seasonal changes in herbage accumulation (HA) and canopy characteristics of tropical grasses aids management of forage-livestock systems and optimizes use of novel cultivars in traditional and integrated systems. The objective of this study was to describe and explain seasonal HA and canopy characteristics of three standard brachiariagrass cultivars in southeastern Brazil under conditions of N fertilization and irrigation: 'Basilisk' signalgrass [Brachiaria decumbens (Stapf.); syn. Urochloa decumbens (Stapf) R. D. Webster]; two commercially released palisadegrass [B. brizantha (Hochst. Ex A. Rich.) Stapf.; syn. U. brizantha (Hochst. ex A. Rich.) R. D. Webster] cultivars, Marandu and Xaraés; and unreleased selections of palisadegrass, Arapoty and Capiporã. Grass plots were mechanically harvested every 28 d during the warm season and every 42 d during the cool season to 15-cm stubble starting in September 2005 and ending in September 2008. Capiporã and Xaraés were the most productive (15.6 and 14.6 Mg dry matter [DM] ha −1 , respectively) despite having greater seasonality of growth. Arapoty did not show advantages over the cultivars Basilisk and Marandu, with similar total annual HA (∼11 Mg DM ha −1). Arapoty and Basilisk forage averaged 50% more stems than the other grasses in the warm season. Leaf area index (LAI) and light interception (LI) at harvest did not vary among grasses in Year 1, with an average of 3.1 and 90.3%, respectively, and were generally greater for Marandu in Year 2. Capiporã and Xaraés are options for intensive pasture-based livestock production systems and for pasture diversification in tropical areas because of their good HA with great leaf proportion.

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Section: Annual and Seasonal Herbage Accumulationcontrasting

confidence: 99%

Seasonal herbage accumulation and canopy characteristics of novel and standard brachiariagrasses under N fertilization and irrigation in southeastern Brazil

et al. 2020

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“…In the condition of maximum N fertilization (60 kg.ha -1 ), the increase in dry mass production was of 27% while using the maximum dose of P 2 O 5 . This indicates that P has a direct correlation with a higher leaves production, and consequently, a higher dry matter accumulation, resulting in a forage with a better quality (Camacho, 2015).…”

Section: Resultsmentioning

confidence: 92%

Nitrogen and Phosphate Fertilization Maximize Grass BRS Zuri Performance

Neto

Gonçalves

Pietramale

et al. 2020

JAS

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The low nutrients levels available in pasture formation reduces the forage yield. Soil correction and fertilization practices are considered priorities in the planning, renovation or recovery of pastures. The aimed of this experiment was to evaluate the effect of nitrogen and phosphate fertilization rate in productivity of the Panicum maximum cv. BRS Zuri. The experimental design was a randomized block design in a 3×4 factorial arrangement, with three doses of superphosphate (0.0, 80.0 and 160.0 kg.ha-1) and four doses of ammonium nitrate (0.0; 20.0; 40.0 and 60.0 kg.ha-1), with three replicates. The following parameters were evaluated at 120 days after implantation: green mass and dry matter yield, plant height, number of plants and tillers per square meter. The doses of 80.0 and 160.0 kg.ha-1 of P2O5 and 60.0 kg.ha-1 of nitrogen combined to each other showed the best results for forage yield.

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“…In the first year of cultivation of Urochloa decumbens, there was no difference between the fertilization (oscillating from 1,264.75 to 1467.75 kg ha -1 in the absence and in the dose of 241 m ³ ha -1 http://dx.doi.org/10.14393/BJ-v35n6a2019-46998 of LSM), however, in the second year, there were increases with the use of LSM (table 3). This lack of variation in the first year was unexpected, because despite the range studied, Urochloa decumbens is characterized by good adaptation to conditions of low fertility and hydric stress, it responds well to fertilization as well as to the rainy season (PEZZOPANE et al, 2015;CAMACHO et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Fertilization with liquid swine manure increases productivity and improves the quality of Urochloa decumbens

et al. 2019

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This study aims at assessing the influence of mineral fertilization and biofertilizer from liquid swine manure (LSM) in productivity, levels of crude protein (CP), neutral detergent fiber (NDF) and Acid Detergent Fiber (ADF) of Urochloa decumbens. The experiment was carried out in a red Latosol under a Urochloa decumbens pasture, in a state of degradation with loss of vigor and forage productivity. The delineation chosen for this study was randomized blocks with six treatments (control without fertilization, control with use of mineral fertilizer and four unique concentrations of liquid swine manure biofertilizer (61 m3 ha-1, 121 m3 ha-1, 181 m3 ha-1, 241 m3 ha-1)). The application of residue has been split in two times on the surface of the soil, by means of a distributor of liquid waste with a fan-shaped application. Yield and bromatological features were evaluated for two years. Fertilization with LSM can fully replace mineral fertilizing in Urochloa decumbens pasture systems, resulting in an increase, as a result, in the dry mass yield from the dosage of 121 m3 ha-1 and the reduction in fiber content in neutral and acid detergent. The increments in yield were observed in the second year, while improvement in bromatological quality was observed from the first application of LSM.

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Eficiência de genótipos de Brachiaria brizanthaStapf. (Syn: Urochloa brizantha) na produção de biomassa sob aplicação de fósforo

Cited by 5 publications

References 15 publications

Seasonal herbage accumulation and canopy characteristics of novel and standard brachiariagrasses under N fertilization and irrigation in southeastern Brazil

Seasonal herbage accumulation and canopy characteristics of novel and standard brachiariagrasses under N fertilization and irrigation in southeastern Brazil

Nitrogen and Phosphate Fertilization Maximize Grass BRS Zuri Performance

Fertilization with liquid swine manure increases productivity and improves the quality of Urochloa decumbens

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