Journal of Range Management, Volume 25, Number 5 (September 1973): Recent submissions
Now showing items 21-25 of 25
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Development, Testing, and Evaluation of the Deep Furrow Drill Arm Assembly for the Rangeland DrillA deep-furrow drill-arm assembly for a Rangeland drill was developed, tested, and evaluated. Horizontal disk angle was the single most important factor affecting construction of an adequate furrow. This angle varied among sites and was influenced by vegetative cover and soil conditions. The final design was an assembly with an adjustable disk angle. Seedling stands in deep furrows were equal to or superior to those in standard furrows.
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Control of Rocky Mountain Iris and Vegetation Response on Mountain MeadowsApplication of 2, 3, or 4 lb/acre of 2,4-D in mid-June or 3 or 4 lb/acre in early July gave 91 to 100% control of iris. Iris phenology at treatment ranged from late vegetative to late bloom. The 2 lb/acre rate applied when seed capsules were forming controlled 73 to 85% and control was not uniform. Reduction in iris yield ranged from 398 to 1568 lb/acre and averaged 925 lb/acre. Iris control gave a significant increase in production of grass and grasslike species of from 274 lb/acre (58%) to 2364 lb/acre (360%) with an average of 1173 lb/acre (180%). Slender wheatgrass and Nevada bluegrass were the most responsive species. Yield of sage grouse food plants, dandelion and yarrow, was severely reduced the first year after all treatments. Total forb production was deficient or minimal for sage grouse, and dandelion was deficient. Total forb production and dandelion component appeared adequate for existing sage grouse populations in the second and subsequent years after treatment.
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Chemical Fertilization of Fourwing SaltbushFourwing saltbush is an important member of arid and semiarid rangeland communities, supplying high quality forage for herbivores as well as serving as an erosion deterrent. Methods of saltbush establishment, however, have met with only limited success. Results of a greenhouse study show that small additions of balanced fertilizer can greatly increase saltbush growth and hence likely increase the probability of saltbush establishment. The results appear to warrant further study in the form of field tests to evaluate the practicality of large scale fertilization of saltbush plantings.
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A Method for the Collection and Transport of Native Grasses from the Field to the GlasshouseA simple method for transplanting native grasses from field to glasshouse with negligible mortality is suggested. The method has been used successfully in both Australia and in the United States and was far superior to other transplanting techniques. The method has also been used successfully with forbs and shrubs.
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30 Years of Vegetal Change Following Burning of Sagebrush-Grass RangeA sagebrush-grass range was burned according to plan in 1936. Long-term results show that sagebrush yields have increased while most other important shrub, grass, and forb yields have decreased. Evaluation by subspecies of sagebrush was helpful in interpreting sagebrush behavior. The return of sagebrush shows the need for planning sagebrush control on a continuing basis for maximum forage qualities.
