2009
DOI: 10.1590/s0103-90162009000100018
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Abstract: Indirect, non-destructive methods for estimating herbage mass on pasture may help growers to better estimate herbage mass and manage the grazing process. The objective of this study was to evaluate two methods for estimating herbage mass on Marandu palisadegrass [Brachiaria brizantha (A. Rich.) Stapf] pastures, over two grazing seasons. The relationships between herbage mass and two indirect, non-destructive measurements (sward surface height -SSH and rising plate meter -RP) were analyzed via regression analys… Show more

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Cited by 19 publications
(31 citation statements)
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References 11 publications
(16 reference statements)
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“…However, there were clear differences among years in the magnitude of the seasonal variation in slope coefficient (Figure ).The difference may have been due to the changes in mean herbage mass, botanical composition and dead‐material content, which were caused by the differences in stocking rate, cycle and period. In particular, the height of the slope coefficient in early spring would be a consequence of the accumulation of dead residues, which could be affected by the management in the previous season (Braga et al ., ; Ferraro et al ., ). This difference would also be observed among pastures.…”
Section: Resultsmentioning
confidence: 97%
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“…However, there were clear differences among years in the magnitude of the seasonal variation in slope coefficient (Figure ).The difference may have been due to the changes in mean herbage mass, botanical composition and dead‐material content, which were caused by the differences in stocking rate, cycle and period. In particular, the height of the slope coefficient in early spring would be a consequence of the accumulation of dead residues, which could be affected by the management in the previous season (Braga et al ., ; Ferraro et al ., ). This difference would also be observed among pastures.…”
Section: Resultsmentioning
confidence: 97%
“…The changes in the coefficients of RPM calibrations before and after the reproductive development stage have been reported in other studies (Bransby et al ., ; Michell, ; Li et al ., ) and discussed to be affected by grass mass density (Ferraro et al ., ). Dead‐material content has been reported to affect the seasonal variation in calibration coefficients owing to its low physical resistance (L'Huillier and Thomson, ; Braga et al ., ). This type of seasonal variation in calibration coefficient shown in this study and other studies must be a typical relationship between RPM reading and herbage mass in cool‐season pasture.…”
Section: Resultsmentioning
confidence: 99%
“…The former would be attributed to the accumulation of dead residue caused by the management in the previous season (Braga et al 2009;Ferraro et al 2012;Nakagami and Itano 2014) and the latter to the management practice and the meteorological condition affecting the dead-material content after the reproductive stage.…”
Section: Discussionmentioning
confidence: 99%
“…The CH was defined as the average of 27 readings taken randomly in each experimental unit, using the sward surface height method (Braga et al, 2009). …”
Section: Treatments and Experimental Managementmentioning
confidence: 99%