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http://dx.doi.org/10.5333/KGFS.2011.31.4.383

Effect of Seeding Dates of Italian Ryegrass Interseeded into Bermudagrass Sod on the Forage Productivity and Botanical Composition of Italian Ryegrass and Bermudagrass  

Park, Nam-Geon (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Hwang, Kyung-Jun (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Lee, Chong-Eon (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Kim, Nam-Young (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Park, Hyung-Soo (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Ko, Moon-Suk (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Lim, Young-Cheol (Subtropical Animal Experiment Station, National Institute of Animal Science, RDA)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.31, no.4, 2011 , pp. 383-388 More about this Journal
Abstract
This study was carried out to determine the effect of seeding dates of Italian ryegrass interseeded into bermudagrass sod on the forage productivity and botanical composition of Italian ryegrass and bermudagrass. Experimental plot was located at 200 m altitude within Subtropical Animal Experiment Station, National Institute of Animal Science in Jeju from 2009 to 2010. Seeding date treatments of Italian ryegrass into bermudagrass sod were arranged in a randomized complete block design replicated three times. Italian ryegrass was drilled in row 20 cm apart after clipping the bermudagrass at a cutting height of 2~3 cm. Seeding time was on 15 September, 30 September and 15 October. The dry matter yield of Italian ryegrass was higher in 15 September seeding treatment, the dry matter yields of 30 September and 15 October seeding treatment were not different. The Italian ryegrass interseeded into bermudagrass sod didn't affect the dry matter yield in the summer harvests of bermudagrass, and the dry matter yield of bermudagrass showed the highest in August. In botanical composition, Italian ryegrass showed to reduced growth in early seedling stage after seeding by competition with bermudagrass, but Italian ryegrass was dominant to June increasing of temperature in spring next year and bermudagrass after Italian ryegrass harvests was dominant during summer season.
Keywords
Italian ryegrass; Bermudagrass; Dry matter yield; Botanical composition;
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