Effects of seasonal rest in aboveground biomass for a native grassland of the flood Pampa, Argentina
Issue Date
1991-09-01Keywords
Paspalum dilatatumSporobolus indicus
bothriochloa laguroides
seasonal grazing
Bothriochloa
floodplains
continuous grazing
yields
rotational grazing
natural grasslandsbiomass productiongrazing intensityseasonal variationArgentinabotanical compositiongrazinggrasses
Metadata
Show full item recordCitation
Hidalgo, L. G., & Cauhépé, M. A. (1991). Effects of seasonal rest in aboveground biomass for a native grassland of the flood Pampa, Argentina. Journal of Range Management, 44(5), 471-474.Publisher
Society for Range ManagementJournal
Journal of Range ManagementDOI
10.2307/4002747Additional Links
https://rangelands.org/Abstract
Changes in total biomass and botanical composition in a native pasture of the Flooding Pampa in the Salado River Basin (Province of Buenos Aires), under 3 grazing systems: spring-summer rest (November, December, and January); fall rest April, May, and June), and continuous grazing were evaluated from October 1979 to August 1981. A variable stocking rate based on available forage was used. Total aboveground biomass was periodically sampled to ground level and separated into dead and green components. The green biomass was subdivided into individual species. Total aboveground biomass averaged 4,600 +/- 445 kg ha-1 and 3,750 +/- 120 kg ha-1 for the spring-summer rest treatment during the first and second years, respectively. In the same period, warm-season species increased, principally due to an increase in dallisgrass (Paspalum dilatatum Poir.) and bluestem (Bothriochloa laguroides Herter) biomass. Total aboveground biomass yield was 2,000 +/- 170 kg ha-1 during the fall rest treatment, and cool-season species such as Poa spp. and Stipa spp. increased. In general, continuous grazing at a moderate intensity resulted in total aboveground biomass of about 2,000 kg DM ha-1 throughout the experimental period. Contributions of warm-season and cool-season species did not change. Only West Indies smutgrass (Sporobolus indicus (L.) R. Br.) increased under continuous grazing.Type
textArticle
Language
enISSN
0022-409XScopus Count
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