Bahiagrass (Paspalum notatum Flueggé): Overview and Pasture Management

Wallau, Marcelo; Vendramini, João; Dubeux, José C. B.; Blount, Ann R.

doi:10.32473/edis-ag342-2019

Cited by 13 publications

(8 citation statements)

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“…In general, the values obtained for leaf dry matter digestibility were similar to those obtained for the species in previous studies, varying between 55 and 65% for green leaves during summer (23) and within the range found in experimental studies (22) . In turn, for LI90%, ADF and NDF values (in period 2) were higher for the 60% severity level, resulting in lower digestibility values.…”

Section: Discussionsupporting

confidence: 88%

“…In general, experimental conditions were adequately controlled, with pre-cutting LI values close to the pre-established targets, ensuring the planned contrasts between defoliation regimes. Forage mass recorded values were generally high and within the range found for Paspalum notatum in other countries, such as Japan (21) and USA (22) , reaffirming this species' potential as a forage source during summer. Higher values were recorded in period 2 compared to period 1.…”

Section: Discussionsupporting

confidence: 72%

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Acúmulo de forragem, composição morfológica e valor nutritivo de Paspalum notatum CV. INIA Sepé

2021

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Defoliation strategies determine sward canopy structure and affect forage accumulation and nutritive value. The objective of this study was to determine forage accumulation, morphological composition and nutritive value of inia Sepé subjected to combinations of three frequencies (defoliation at 90%, 95% and maximum canopy light interception during regrowth —li90%, li95% and liMax), and two severities of defoliation (40 and 60% of the pre-cutting height). The experiment was carried out from November 15th, 2018 to March 31st, 2019 in Tacuarembó. Measurements of li and canopy height, forage mass morphological composition and nutritional value were carried out. Forage mass was greater in Feb-March. The percentage of leaves was greater for the higher defoliation frequency treatment (li90%). The percentage of stems did not vary among treatments (average of 23%). The percentage of dead material was greater for the lower defoliation frequency treatment (liMax) and 40% defoliation severity. Greater adf and ndf values and smaller digestibility were recorded for liMax/40% combination. For li90%, greater adf and ndf, and smaller digestibility were recorded for the 60% defoliation severity (Feb-March). Forage accumulation was greater for li90% and li95%. inia Sepé shows large flexibility to defoliation management, and the optimal pre-cutting target should not exceed li95% (i.e. 30 cm of canopy height) in order to ensure production of high nutritive value forage and harvest efficiency.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 72%

Acúmulo de forragem, composição morfológica e valor nutritivo de Paspalum notatum CV. INIA Sepé

2021

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“…Although the orthogonal contrasts were statistically significant, the difference in tissue P concentrations between treatments receiving lime and control was negligible (average tissue P concentration of 1.47 g kg −1 for control vs. 1.53 g kg −1 for treatments receiving lime). Regardless of the treatment, tissue P levels were generally in the sufficiency range of 1.5 g kg −1 for bahiagrass (Obour et al., 2011; Silveira et al., 2011; Wallau et al., 2019).…”

Section: Resultsmentioning

confidence: 99%

Bahiagrass and soil responses to lime sources and application levels

et al. 2022

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The increasing cost of lime and the agronomic problems associated with soil acidity management has prompted the need to re-examine management strategies to correct soil pH while maintaining forage productivity. This study evaluated the effect of different lime sources (pelletized dolomitic limestone [dolomite] and hydrated calcitic limestone [Hi-Cal]) and application levels (0, 1.1, 2.2, and 4.4 Mg ha -1 yr -1 ) on soil chemical properties and bahiagrass (Paspalum notatum Flügge) responses in 2014 through 2017. Forage and soil responses were monitored during the 4-yr period, and residual lime effect was also evaluated 3 yr after liming ceased (2020). Liming increased bahiagrass herbage accumulation by 12% relative to control; however, no effect of lime source (P = .6), application level (P = .16), or their interaction (P = .11) was observed. Both lime sources increased tissue P, Mg, Ca, and S concentrations relative to control; however, tissue B, Zn, Mn, Fe, and Cu generally decreased. A single application of Hi-Cal or two annual applications of dolomite increased soil pH from 4.5 to the recommended level of 5.5 for bahiagrass. Soil pH (0-45 cm depth) increased with repeated lime applications particularly in Hi-Cal treatments, but no adverse effects on bahiagrass were observed. Soil pH remained above the recommended level 3 yr after liming ceased. Despite the lack of treatment effect, soil P and K levels decreased with time likely because of nutrient removal with harvested forage. Proper P and K fertilization along with soil pH management are key components to maintain long-term productivity of bahiagrass.

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“…Grazing treatments were selected based on previous research studies (Interrante et al, 2009b), reflecting rotational stocking strategies. The moderate treatment aligns with recommended management guidelines for bahiagrass (Wallau et al, 2019), whereas the intensive treatment was meant to impose a significant level of grazing stress to assess persistence. The entries were named 3Fpen8, A4EMS, M34, M27, FPN 1901, M6Alt, M98Alt, Hybrid 3, and Hybrid 93.…”

Section: Treatments and Experimental Designmentioning

confidence: 99%

Early‐stage evaluation of grazed tetraploid bahiagrass experimental entries

et al. 2023

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Bahiagrass (Paspalum notatum Flüggé) cultivars used for forage in the southeastern United States are primarily diploids. Although producers favor tetraploid traits, for example, wider leaf blades and fewer inflorescences, compared to diploids, there are barriers to their greater use, including apomictic reproduction, lesser frost tolerance, and later initiation of spring growth. By overcoming the apomixis barrier, viable tetraploid options are now available. This study compared annual and seasonal forage accumulation (FA), persistence, and nutritive value of nine tetraploid experimental entries and ‘Argentine’ under ‘moderate’ (10‐cm stubble, 4‐week grazing interval) and ‘intensive’ grazing (5‐cm stubble, 2‐week grazing intervals) during 2020 and 2021. More upright‐growing entries, such as Hybrids 3 and 93, had greater annual FA than Argentine (8230 and 9160 vs. 6060 kg DM (ha year)−1). Similarly, Hybrids 3 and 93 were 50% more productive in early and late season than most entries. Decumbent entries had 30% greater FA under intensive than moderate grazing, whereas upright types generally had similar FA for both grazing managements. Most entries had comparable digestibility and crude protein as Argentine (∼503 and 124 g kg−1, respectively), and intensive grazing resulted in greater nutritive value than moderate grazing, regardless of entry. All entries maintained high ground cover across grazing treatments (88%–96%). The most striking difference was the superior annual FA and the seasonal distribution of FA for Hybrids 3 and 93 compared with other entries, particularly during spring and fall. This occurred without compromising persistence or nutritive value. Five entries showed superior traits compared to Argentine and should be selected for further evaluation under greater spatial and temporal scales prior to cultivar release.

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Bahiagrass (Paspalum notatum Flueggé): Overview and Pasture Management

Cited by 13 publications

References 1 publication

Acúmulo de forragem, composição morfológica e valor nutritivo de Paspalum notatum CV. INIA Sepé

Acúmulo de forragem, composição morfológica e valor nutritivo de Paspalum notatum CV. INIA Sepé

Bahiagrass and soil responses to lime sources and application levels

Early‐stage evaluation of grazed tetraploid bahiagrass experimental entries

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