ESTABLISHMENT OF RANGE GRASSES ON VARIOUS SEEDBEDS AT FOUR (LARREA TRIDENTATA) SITES IN CHIHUAHUA, MEXICO AND ARIZONA, USA.
KeywordsRange plants -- Arizona -- Pima County.
Range plants -- Arizona -- Tucson Region.
Range plants -- Mexico -- Chihuahua (State)
Rangelands -- Revegetation -- Arizona -- Pima County.
Rangelands -- Revegetation -- Arizona -- Tucson Region.
Rangelands -- Revegetation -- Mexico -- Chihuahua (State)
Revegetation -- Arizona -- Pima County.
Revegetation -- Arizona -- Tucson Region.
Revegetation -- Mexico -- Chihuahua (State)
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Degree ProgramGraduate College
Renewable Natural Resources
Degree GrantorUniversity of Arizona
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Revegetation of Retired Farmland: Evaluation of Six Range Grasses Under Three Irrigation RegimesThacker, G.; Cox, J.; Ottman, Mike (College of Agriculture, University of Arizona (Tucson, AZ), 1988-09)Buffelgrass, kleingross, "Catalina" lovegrass, "Cochise" lovegrass, bottlebrush, and sideoats grama grass were seeded on retired farmland in the Avra Valley west of Tucson in 1986 and again in 1987. Each grass species was seeded in plots that received no irrigation, or two establishment irrigations or four establishment irrigations. For both year's tests, buffelgrass had a significantly higher percent cover than the other grasses at three months after planting. In the evaluation of the 1986 test in October 1987, buffelgrass, kleingrass, Cochise lovegrass, and Catalina lovegrass had increased their presence in the irrigated plots from one year before and appeared promising for the revegetaion of retired farmland. Plots that did not receive establishment irrigations did not have significantly higher cover ratings than plots with no cover at all. The one exception to this was buffelgrass in the first evaluation of the 1986 test.
Revegetation of Retired Farmland: Response of Fourwing Saltbush to Establishment Irrigations and WeedingThacker, G.; Ottman, Mike (College of Agriculture, University of Arizona (Tucson, AZ), 1988-09)Fourwing saltbush (Atriplex canescens) was seeded in 80 -inch wide water harvesting microcatchments on retired farmland west of Tucson. Eight months after planting the plots that had received one establishment irrigation and weeding had significantly more cover than the unirrigated and unweeded treatments. The percent cover of the uninigated /weeded and irrigated /unweeded treatments was not significantly different. Uninigated and unweeded plots had virtually no cover of saltbush. It appears that establishing saltbush in microcatchments of this size is not feasible without either an establishment irrigation or weed control.