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http://dx.doi.org/10.5333/KGFS.2013.33.2.105

Effect of Nitrogen Fertilization on the Forage Growth, Yield and Quality of Native Reed (Phragmites communis)  

Seo, Sung (National Institute of Animal Science, RDA)
Park, Jin Gil (Ansan city)
Kim, Won Ho (Livestock Research Institute)
Kim, Meing Jooung (National Institute of Animal Science, RDA)
Lee, Sang Hak (National Institute of Animal Science, RDA)
Jung, Jong Sung (National Institute of Animal Science, RDA)
Park, Hyung Soo (National Institute of Animal Science, RDA)
Sung, Ha Guyn (Adbiotech)
Lee, Joung Kyong (The Foundation of AG, Tech. Commercialization and Transfer)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.33, no.2, 2013 , pp. 105-110 More about this Journal
Abstract
This study was carried out to investigate the effect of nitrogen (N) fertilization on the forage growth, production and quality of native reed (Phragmites communis) grasses. Field experiments were conducted in Cheonan and in Ansan, 2012. Treatments were control (no N fertilization), 50 kg/ha and 100 kg/ha in Cheonan plots (fertilization on April $30^{th}$, and harvest on June $21^{st}$). Treatments in Ansan plots were control (no N fertilization) and 60 kg/ha (fertilization on May first, and harvest on August first). Forage growth and leaf colors were improved in N fertilized plots. However, the drymatter (DM) percentage was slightly decreased with N fertilization. Forage yields, in terms of DM, crude protein (CP) and digestible DM (DDM), were significantly increased with N fertilization in both sites. In Cheonan, DM, CP and DDM yields per ha were 4,026 kg, 235 kg and 1,850 kg, respectively, in the control plot, and were 4,658 kg, 306 kg and 2,388 kg, respectively, in the N 50 kg plot, and 5,622 kg, 446 kg and 3,143 kg, respectively, in the N 100 kg plot. In Ansan, DM, CP and DDM yields per ha were 2,802 kg, 177 kg and 1,288 kg, respectively, in the control plot, and were 3,876 kg, 294 kg and 1,853 kg, respectively, in the N 60 kg plot. Forage quality in terms of CP content, in vitro DM digestibility (IVDMD) and relative feed value (RFV) were also increased with N fertilization in both sites. In Cheonan, the CP content, IVDMD and RFV were 5.85%, 45.96% and 64.5 (grade 5), respectively, in the control plot, 6.58%, 51.27% and 72.3 (grade 5), respectively, in the N 50 kg plot, and 7.94%, 55.91% and 72.7 (grade 5), respectively, in the N 100 kg plot. In Ansan, the CP content, IVDMD and RFV were 6.30%, 45.98% and 70.2 (grade 5), respectively, in the control plot, and 7.59%, 47.80% and 78.3 (grade 4), respectively, in the N 60 kg plot. In conclusion, N fertilization of 60~100 kg/ha was desirable for greater forage production, with a higher quality of native Phragmites communis achievable. This should only be applied if the fertilization area is not located at a riverside/streamside or in riparian land where there is a high risk of water pollution by fertilization.
Keywords
Reed; Native grass; N fertilization; Production; Quality;
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Times Cited By KSCI : 4  (Citation Analysis)
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