Vegetative Response under Various Grazing Management Systems in the Edwards Plateau of Texas

Reardon, Patrick O.; Merrill, Leo B.

doi:10.2307/3897273

Cited by 23 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3a). Martin (1973), Owensby et al (1973), Reardon andMerrill (1976), andTrlica et al (1977) have found that spring-summer rest promoted growth of major season species, as occurred in this study. Important relative biomass changes (after/ before rest) were found in Saint Augustine grass (10/20), bluestem (30/75), and dallisgrass (7/450).…”

Section: Spring-summer Restsupporting

confidence: 79%

Effects of Seasonal Rest in Aboveground Biomass for a Native Grassland of the Flood Pampa, Argentina

Hidalgo¹,

Cauhépé²

1991

Journal of Range Management

View full text Add to dashboard Cite

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 graxing systems: spring-summer rest (November, December, and January); fall rest (April, May, and June), and continuous graaing 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 f 445 kg l ha-' and 3,750 f 120 kg l hat 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 daiiisgrass (Puspulum dilotrrum Poir.) and bluestem (Botiuio& loa laguroides Herter) biomass. Total aboveground biomass yield was 2,000 f 170 kg* ha-' 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 l hat 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.

show abstract

Section: Spring-summer Restsupporting

confidence: 79%

Effects of Seasonal Rest in Aboveground Biomass for a Native Grassland of the Flood Pampa, Argentina

Hidalgo¹,

Cauhépé²

1991

Journal of Range Management

View full text Add to dashboard Cite

show abstract

“…Prior to establishment of the three study pastures in 1948, they had been subjected to longterm heavy, continuous grazing. At the time of this study, 27 years later, the exclosure and the deferred-rotation pasture had improved greatly in range condition (Smeins et al 1975;Reardon and Merrill 1976). The two pastures also had similar and favorable hydrologic properties ( Fig.…”

Section: Discussionmentioning

confidence: 87%

Influence of Soil, Vegetation, and Grazing Management on Infiltration Rate and Sediment Production of Edwards Plateau Rangeland

McGinty¹,

Smeins²,

Merrill³

1979

Journal of Range Management

Self Cite

View full text Add to dashboard Cite

Terminal infiltration rates for one pasture in a 4-pasture deferred-rotation grazing system and a 27-year exclosure were found to be similar (10.40 and 10.24 cm/hr, respectively). A heavily, continuously grazed pasture exhibited less than one-half the infiltration rate (4.41 cm/hr) of the rotation pasture and exclosure. Grazed pastures were stocked at approximately the same rate (5.0 ha/AU/yr). The continuously grazed pasture also had greater sediment loss (211 kg/ha) than the rotation pasture and exclosure (134 and 160 kg/ha, respectively). Infiltration rate and sediment production were significantly influenced by plant biomass, bulk density, depression storage, and soil depth. Study Area The study was conducted on the 1,430-ha Texas A&M University Agricultural Research Station, which is located 56 km south of Sonora, Texas, within the Edwards Plateau Land Resource Area (Godfrey et al. 1970). Mean July temperature is 30°C; mean January temperature is 9°C (Hardy et al. 1962). Mean annual rainfall at the Station is 57.2 cm. May and September are the wettest months and average 7.8 and 7.6 cm, respectively (Long 1962).

show abstract

“…There was greater existing litter for the Low management intensity during the majority of the grazing season, and the lesser SR for Low compared with other intensities may partially explain this result. Lesser SR and greater herbage mass often cause more litter to be deposited because of a lesser forage utilization rate and an increase in senescent herbage (Reardon and Merril, 1976;Thomas, 1992). Rezende et al (1999) found a significant increase in litter deposition when SR was halved from 4 to 2 animals ha 21 .…”

Section: Existing Litter Massmentioning

confidence: 99%

Litter Mass, Deposition Rate, and Chemical Composition in Bahiagrass Pastures Managed at Different Intensities

et al. 2006

View full text Add to dashboard Cite

Plant litter is an important pathway of nutrient return to the soil in grazed swards, but the effects of pasture management on litter mass and composition are not well understood. This research evaluated the effect of management intensity, defined in terms of N fertilization and stocking rate (SR), on litter mass, deposition rate, and chemical composition in continuously stocked 'Pensacola' bahiagrass (Paspalum notatum Flü gge) pastures growing on Pomona and Smyrna sands. Treatments were three management intensities: Low (40 kg N ha 21 yr 21 and 1.3 animal units [AU, one AU 5 500 kg live weight] ha 21 SR), Moderate (120 kg N ha 21 yr 21 and 2.7 AU ha 21 SR), and High (360 kg N ha 21 yr 21 and 4.0 AU ha 21 SR). Greater management intensity resulted in less litter mass on the pasture early in the growing season and more litter mass later in the season. Rate of litter deposition was generally greatest for High and ranged between 23 and 40 kg organic matter (OM) ha 21 d 21 compared with 13 to 30 kg OM ha 21 d 21 for Low and Moderate management intensities. Increasing management intensity from Low to High resulted in greater litter N (14.1 vs. 22.9 g kg 21 ) and P (0.8 vs. 1.3 g kg 21 ) concentrations and lesser C:N (f40 vs. 22), C:P (649 vs. 433), and lignin:N (5.8 vs. 4.4) ratios. More intensive pasture management was associated with greater litter deposition rate and litter quality than less intensive management, suggesting a larger nutrient contribution from litter in intensively managed swards.

show abstract

Vegetative Response under Various Grazing Management Systems in the Edwards Plateau of Texas

Cited by 23 publications

References 7 publications

Effects of Seasonal Rest in Aboveground Biomass for a Native Grassland of the Flood Pampa, Argentina

Effects of Seasonal Rest in Aboveground Biomass for a Native Grassland of the Flood Pampa, Argentina

Influence of Soil, Vegetation, and Grazing Management on Infiltration Rate and Sediment Production of Edwards Plateau Rangeland

Litter Mass, Deposition Rate, and Chemical Composition in Bahiagrass Pastures Managed at Different Intensities

Contact Info

Product

Resources

About