Effect of the Drill Widths and Nitrogen Application Levels in Early Spring on Seed Productivity of Domestic Tall Fescue (Festuca arundinacea Schreb.)
2015
Lee, S.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim,K.Y., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Ji, H.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Hwang, T.Y., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Park, H.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, K.W., National Institute of Animal Science, RDA, Cheonan, Republic of Korea
In this study, we sought to evaluate the growth characteristics and seed productivities of domestic tall fescue that were cultivated with differing combinations of drill widths and nitrogen-application rates in early spring; the examination was conducted at the National Institute of Animal Science, RDA, from 2013 to 2014. The main plots were three widths of 15 cm, 30 cm, and 45 cm, and the subplots were subject to nitrogen-application rates in early spring of 45 kg/ha, 90 kg/ha, 135 kg/ha, and 180 kg/ha. The growth and development characteristics did not vary by treatment in terms of drill width and early-spring nitrogen application. Tall fescue Purumi showed a stable seed productivity of two tons or greater when the drill width was set at 15 cm and 90 kg/ha of nitrogen was applied in early spring. The narrower the drill width, the greater the numbers of both the ears and seeds, while the length of the ear was longer when the drill width was wider. Regarding the influence of the drill width and early-spring nitrogen application on the productivity of seed-producing straw, the dry matter productivity was higher when the drill width was narrower; however, no particular trend was observed with respect to different amounts of fertilizer. The average production amount of the first round of straw after seed gathering was 6,920 kg/ha. The second round produced an average 8,134 kg/ha of dry matter.
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