Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management

Silveira, M. C. T. da; Silva, Sila Carneiro da; Júnior, Salim Jacaúna de Souza; Barbero, Leandro Martins; Rodrigues, C. S.; Limão, Veridiana Aparecida; Pena, Karine da Silva; Júnior, Domicio do Nascimento

doi:10.1590/s0103-90162013000400004

Cited by 38 publications

(47 citation statements)

References 9 publications

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“…Apparent herbage harvested was greater for entries 4F and 10 (Table 2) compared with all others, and total annual herbage harvested was 33 and 28% greater for those entries, respectively, than for Floralta. This result for the LI95 treatment is different than what has been proposed for other C4 grasses by several authors (Carnevalli et al, 2006;Barbosa et al, 2007;da Silva and Nascimento, 2007;Sbrissia et al, 2007;Pereira et al, 2014). These data show that LI80-SH30 had the least apparent herbage harvested by grazing for any management treatment combination during 2012, while in 2013, it was not different from LI80-SH20 or LI95-SH30, and respectively).…”

Section: Herbage Accumulated and Apparent Herbage Harvested By Grazingcontrasting

confidence: 69%

Performance of Limpograss Breeding Lines under Various Grazing Management Strategies

Wallau

Sollenberger

Vendramini³

et al. 2016

Crop Science

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Limpograss [Hemarthria altissima (Poir.) Stapf et C.E. Hubb.] is a C4, perennial, stoloniferous grass that is well adapted to poorly drained soils and grows throughout frost‐free periods during winter in southern Florida. Its use has increased rapidly in recent decades, but nearly all area in cultivation is planted with one cultivar, ‘Floralta’. A breeding program was initiated to develop improved alternatives to Floralta, resulting in a group of breeding lines requiring evaluation under grazing. The objective of this research was to evaluate the performance of five limpograss breeding lines (1, 4F, 10, 32, and 34) under combinations of grazing frequency and intensity. During the 2012 and 2013 growing seasons, those lines, plus Floralta, were tested at two pre‐grazing canopy light interception levels (80 and 95%), that triggered the initiation of each grazing event, and two post‐grazing stubble heights (20 and 30 cm). Lines 4F and 10 had greater herbage accumulation, apparent herbage harvested, and persistence than Floralta. Initiation of grazing at 80% canopy light interception resulted in more frequent grazing events, a longer grazing season, shorter pre‐grazing canopy height, greater leaf percentage, less herbage bulk density, and greater herbage crude protein concentration compared with 95% canopy light interception. These data support cultivar release of breeding lines 4F and 10 and suggest that persistence and efficient utilization of limpograss under rotational stocking can likely be achieved by initiating grazing at a pre‐grazing canopy height of ∼60 cm, well before 95% canopy light interception, and by ending grazing at a post‐grazing canopy height of ∼30 cm.

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Section: Herbage Accumulated and Apparent Herbage Harvested By Grazingcontrasting

confidence: 69%

Performance of Limpograss Breeding Lines under Various Grazing Management Strategies

Wallau

Sollenberger

Vendramini³

et al. 2016

Crop Science

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“…When managed with long regrowth intervals that allow canopy light interception to exceed 95% (e.g., maximum light interception-LImax), sward herbage mass is greater but with a higher proportion of stem and dead material relative to leaf, resulting in greater total dry matter production, but smaller leaf dry matter yield [84] and lower nutritive value of the produced herbage [89]. In addition, long grazing intervals characterized by the pre-grazing target of LImax result in a greater proportion of the produced herbage being lost to the soil as a consequence of physical damage and/or rejection, decreasing the efficiency of the grazing process [85,90,91]. The investment in stem elongation results in taller swards with an increased proportion of stems in the upper layers of their vertical profile [92], increasing the difficulty of grazing and in maintaining the post-grazing management targets [93,94].…”

Section: Morphological Plant Types and Growthmentioning

confidence: 99%

“…The investment in stem elongation results in taller swards with an increased proportion of stems in the upper layers of their vertical profile [92], increasing the difficulty of grazing and in maintaining the post-grazing management targets [93,94]. As a result, the benefit of greater total herbage accumulation is offset by the greater grazing losses when long regrowth intervals are used, indicating that, although herbage accumulation per grazing cycle is smaller when managing with shorter grazing intervals (LI95%), the more frequent defoliation results in larger number of grazing cycles and total herbage accumulation (with higher leaf proportion) than when managing with longer grazing intervals (LImax) [84,91,94,95].…”

Section: Morphological Plant Types and Growthmentioning

confidence: 99%

Ecophysiology of C4 Forage Grasses—Understanding Plant Growth for Optimising Their Use and Management

2015

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Grazing management has been the focus of the research with forage plants in Brazil for many years. Only in the last two decades, however, significant changes and advances have occurred regarding the understanding of the key factors and processes that determine adequate use of tropical forage plants in pastures. The objective of this review is to provide an historical overview of the research with forage plants and grasslands in Brazil, highlighting advances, trends, and results, as well as to describe the current state of the art and identify future perspectives and challenges. The information is presented in a systematic manner, favoring an integrated view of the different trends and research philosophies. A critical appraisal is given of the need for revision and change of paradigms as a means of improving and consolidating the knowledge on animal production from pastures. Such analysis idealizes efficient, sound and sustainable grazing management practices necessary to realize the existing potential for animal production in the tropics.

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“…) ratio of the soil solution affect the recovery and efficiency of nitrogen use, dry matter yield and chemical composition of pastures (Primavesi et al, 2006a;Silva et al, 2013;Silveira et al, 2013). Therefore, studies of evaluation of use and efficiency of nitrogen fertilizers, applied at different times, are important.…”

Section: +mentioning

confidence: 99%

Application of different nitrogen doses to increase nitrogen efficiency in Mombasa guinegrass (Panicum maximum cv. mombasa) at dry and rainy seasons

Galindo¹,

Buzetti²,

Filho³

et al. 2017

Aust J Crop Sci

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Nitrogen is the nutrient that most influences productivity and pasture quality but nitrogen fertilization efficiency still needs to be increased. The objective of this work was to study the efficiency of nitrogen sources and doses (N) on the yield of Panicum maximum cv. Mombasa applied during rainy and dry periods. The soil of the experimental area is an ultisol with a sandy texture. The experimental design was a randomized block in a factorial scheme with four replications, two sources of nitrogen: urea and ammonium nitrate and five N doses (0, 50, 100, 150 and 200 kg ha -1 per cutting), in total 0, 300, 600, 900 and 1200 kg ha -1 per season-dry or rainy, respectively). The dry matter yield (DMY) and nitrogen use efficiency (NUE), agronomic efficiency (AE), recovery of applied nitrogen (RAN) and physiological efficiency (PE) were evaluated. The results showed that N source did not influence DMY, NUE, AE, RAN and PE. However, the N doses influenced DMY positively, and negatively NUE, AE, RAN and PE. Generally, the increase was occurred in DMY with the increase of N doses and decrease in NUE, AE, RAN and PE. As the N source did not influence the analyzed attributes, it is recommended to use urea, because it is a fertilizer with the highest N concentration and lowest cost per unit of nutrient, at a dose of 100 kg ha -1 per cut, favoring DMY gain. In addition this urea assists with the management and maintenance of the Mombasa guineagrass.

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Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management

Cited by 38 publications

References 9 publications

Performance of Limpograss Breeding Lines under Various Grazing Management Strategies

Performance of Limpograss Breeding Lines under Various Grazing Management Strategies

Ecophysiology of C4 Forage Grasses—Understanding Plant Growth for Optimising Their Use and Management

Application of different nitrogen doses to increase nitrogen efficiency in Mombasa guinegrass (Panicum maximum cv. mombasa) at dry and rainy seasons

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