Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Robert K. Lyons"'
Autor:
William J. Thompson, Robert K. Lyons, Case R. Medlin, C. Wayne Hanselka, Megan K. Clayton, W. Allan McGinty
Publikováno v:
Weed Technology. 33:763-772
Herbicides have been a primary means of managing undesirable brush on grazing lands across the southwestern United States for decades. Continued encroachment of honey mesquite and huisache on grazing lands warrants evaluation of treatment life and ec
Autor:
Megan K. Clayton, Robert K. Lyons
Publikováno v:
Weed Technology. 33:773-777
Huisache is a major brush problem on native rangelands and pastures in South Texas. Although herbicide applications to foliage provide very high plant-kill levels, the same herbicides have not proven reliable when applied as broadcast ground or aeria
Autor:
Joshua L. Grace, Scott L. Mitchell, Richard V. Machen, J. Alfonso Ortega-S., David B. Wester, Fred C. Bryant, Sandra Rideout-Hanzak, Robert K. Lyons, Aaron D. Tjelmeland, Megan K. Clayton, Fidel Hernández, John T. Edwards
Publikováno v:
Rangelands. 40:37-44
On the Ground • Tanglehead is a native bunchgrass with a pan-tropical distribution. Historically, tanglehead was common but not abundant in southern Texas and was considered a decreaser whose presence indicated good range condition. • Beginning i
Publikováno v:
Restoration Ecology. 15:662-669
Conservation of North American grasslands is hampered by the impact of invasive herbaceous species. Selective control of these plants, although desirable, is complicated by the shared physiology and phenology of the invader and the native components
Autor:
Robert K. Lyons, Jerry W. Stuth
Publikováno v:
Rangelands. 29:8-11
Autor:
Robert K. Lyons, Richard V. Machen
Publikováno v:
Rangelands. 29:4-7
Range cattle performance depends on both forage quality and forage quantity. A simple, effective set of tools is available to cattlemen to help detect whether forage quality or quantity are limiting performance. Nutritional computer models have been
Publikováno v:
Hydrological Processes. 20:3179-3189
Partitioning bulk rainfall into canopy interception, litter interception, stemflow and throughfall allows an estimate of the physical impact of trees on the local hydrologic budget. Despite recognition of the potentially large effect of interception
Publikováno v:
Ecological Applications. 15:127-136
There is considerable public and political pressure to reduce woody plant cover on rangelands as a means of increasing water yield, despite the lack of studies documenting that such a strategy is effective. In the Texas Hill Country, runoff from the
Publikováno v:
Journal of Animal Science. 71:530-538
Near-infrared reflectance spectroscopy of fecal samples from crossbred beef cows grazing native range forage was performed to determine whether supplemental feeding would alter the prediction of forage quality. In one trial, 2.27 kg.cow-1 x d-1 of su
Autor:
Robert K. Lyons, Jerry W. Stuth
Publikováno v:
Animal Feed Science and Technology. 35:21-36
Factors related to and methods for processing cattle fecal samples for rapid analysis with near-IR reflectance spectroscopy (NIRS) for forage diet quality predictions were investigated. No differences (P