Rendimiento y calidad de forraje del pasto ovillo (Dactylis glomerata L.) al variar la frecuencia e intensidad de pastoreo

González, Jorge Armando Villareal; Garay, Alfonso Hernández; Hernández, Pedro Arturo Martínez; Rodrı́guez, Jenny; Zebadúa, María Eugenia Velasco

doi:10.22319/rmcp.v5i2.3663

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…Grazing facilitates the physical breakdown, soil incorporation and rate of decomposition of residual plant material (Naeth et al, 1991). Villareal González et al (2014) evaluated orchard grass, and showed that yield was higher when it was intensively grazed (maintaining a remnant of 3–5 cm) than when it was grazed with light intensity (remnant of 6–8 cm). Our study yielded similar results since the simulated productivity of elongated wheatgrass was higher when a higher grazing intensity was applied (Figure 6).…”

Section: Discussionmentioning

confidence: 99%

Modelling pasture management practices for soil organic carbon gain in livestock systems

Schimpf

Errecart

Canziani

2022

Grass and Forage Science

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Our ability to develop strategies to mitigate climate change includes an understanding of, and our capacity to predict soil organic carbon (SOC) dynamics in livestock systems. Here we assess the capability of the Sustainable Grazing System (SGS) Pasture Model for predicting pasture growth (elongated wheatgrass, Thinopyrum ponticum) and SOC accumulation in different environments and under a range of pasture management practices in hydrohalomorphic soils located in South‐eastern Buenos Aires Province, Argentina. After Model calibration, aerial net primary productivity (ANPP) and TSOC content under two grazing intensities (7.5 and 11 cm post‐grazing target heights) and two N fertilization levels (0 and 100 kg N ha−1 yr−1) were simulated over a 10 year‐period. The SGS Pasture Model predicted 87% of the observed ANPP, with observed and predicted ANPPs averaging 1.46 and 1.42 Mg ha−1 yr−1, respectively. There were differences in simulated ANPP between fertilized and unfertilized treatments both at high and low grazing intensities for the last year of the period. Total SOC contents from the modelling showed differences between high (83.7 to 84.2 Mg ha−1) and low (86.8 to 87.5 Mg ha−1) grazing intensities, with treatments receiving N also showing higher carbon stocks. The positive effect of reduced grazing intensity on soil carbon was explained by an increased input of aerial and subterranean dry matter into the soil. Sensitivity analysis showed that SGS is a robust model, capable of performing effectively under a variety of conditions. Hence, it can be used for exploring management practices to mitigate the impact of livestock systems on emissions and SOC stocks.

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Section: Discussionmentioning

confidence: 99%

Modelling pasture management practices for soil organic carbon gain in livestock systems

Schimpf

Errecart

Canziani

2022

Grass and Forage Science

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Productivity of orchard grass (Dactylis glomerata L.) alone and associated with perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.)

et al. 2017

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-The objective of this research was to evaluate the productive capacity of orchard grass alone and associated with perennial ryegrass and white clover sown at different proportions. Treatments consisted of the following associations and monoculture: 100-00-00, 70-20-10, 50-00-50, 40-40-20, 40-20-40, 20-70-10, 20-40-40, and 00-50-50% of orchard grass, perennial ryegrass, and white clover, respectively. The eight treatments were randomly distributed into 24 experimental plots of 9 × 8 m according to a completely randomized block design with three replicates. On average, the associations that had the highest herbage yield in two years were 40-20-40, 20-70-10, and 20-40-40 with 21038, 20709, and 20073 kg DM ha −1 , respectively, and the lowest herbage yield was registered by monoculture with 12793 kg DM ha −1 . The associations with higher herbage yield exceeded that of monoculture by about 61%. Independently of the association, in summer, the highest percentage was found to be orchard grass and in winter, it was white clover, while perennial ryegrass had the lowest percentage throughout the study. The associations of grasses and legumes have higher herbage yield when compared with the monoculture of orchard grass. The legume has a better behaviour when it is associated with perennial ryegrass and worse with orchard grass.

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Efecto de la presión de pastoreo en el Andropogon gayanus

et al. 2019

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Rendimiento y calidad de forraje del pasto ovillo (Dactylis glomerata L.) al variar la frecuencia e intensidad de pastoreo

Cited by 4 publications

References 16 publications

Modelling pasture management practices for soil organic carbon gain in livestock systems

Modelling pasture management practices for soil organic carbon gain in livestock systems

Productivity of orchard grass (Dactylis glomerata L.) alone and associated with perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.)

Efecto de la presión de pastoreo en el Andropogon gayanus

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