Range Productivity as Influenced by Biennial Sweetclover in Western South Dakota
AuthorNichols, J. T.
Johnson, J. R.
Western South Dakota
Heavy Clay Soil
Northern Great Plains
MetadataShow full item record
CitationNichols, J. T., & Johnson, J. R. (1969). Range productivity as influenced by biennial sweetclover in western South Dakota. Journal of Range Management, 22(5), 342-347.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractBiennial sweetclover was seeded into a Dense Clay Range Site that was severely depleted by drought and overgrazing. Seeded in 1962 without seedbed preparation, sweetclover has reseeded naturally, and remained a compatable associate with the native vegetation during the five-year study. Combined grass and sweetclover production averaged 1804 lb/acre annually compared to 750 for the control. The grass component was increased by an average of 373 lb/acre as a result of legume supplied nitrogen. Western wheatgrass vigor and forage protein were also improved. Native perennial grasses were not reduced in abundance by sweetclover competition. Sweetclover appears well adapted as a legume for rangelands with heavy clay soils in western South Dakota.