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Seeding cool-season grasses into unimproved warm-season pasture in the southern Great Plains of the United States
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bartholomew, Paul Williams, R. Dorrington |
| Copyright Year | 2008 |
| Abstract | Limited availability of herbage during the cool season creates a problem of a supply of nutrients for livestock producers throughout the southern Great Plains of the USA and, particularly, on small farms where resource constraints limit possible mitigating strategies. Six cool-season grasses were individually sown into clean-tilled ground, no-till drilled into stubble of Korean lespedeza [Kummerowia stipulacea (Maxim) Makino] or no-till over-sown into dormant unimproved warm-season pastures. The dry matter (DM) yields of mixtures of cool and warm-season herbage species were measured to test their potential for increasing cool-season herbage production in a low-input pasture environment. Only mixtures containing Italian ryegrass (Lolium multiflorum Lam) produced greater year-round DM yields than undisturbed warm-season pasture with all establishment methods. When cool-season grass was no-till seeded into existing warm-season pasture, there was on average a 0·61 kg DM increase in year-round herbage production for each 1·0 kg DM of cool-season grass herbage produced. Sowing into stubble of Korean lespedeza, or into clean-tilled ground, required 700 or 1400 kg DM ha−1, respectively, of cool-season production before the year-round DM yield of each species equalled that of undisturbed warm-season pasture. Productive pastures of perennial cool-season grasses were not sustained beyond two growing seasons with tall wheatgrass [Elytrigia elongata (Host) Nevski], intermediate wheatgrass [Elytrigia intermedia (Host) Nevski] and a creeping wheatgrass (Elytrigia repens L.) × bluebunch wheatgrass [Pseudoroegneria spicata (Pursh)] hybrid. Lack of persistence and low productivity limit the usefulness of cool-season perennial grasses for over-seeding unimproved warm-season pasture in the southern Great Plains. |
| Starting Page | 94 |
| Ending Page | 106 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.1111/j.1365-2494.2007.00617.x |
| Volume Number | 63 |
| Alternate Webpage(s) | https://naldc.nal.usda.gov/naldc/download.xhtml?content=PDF&id=32416 |
| Alternate Webpage(s) | https://doi.org/10.1111/j.1365-2494.2007.00617.x |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
