지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.5
- 수록면
- 213 - 221 (9page)
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초록· 키워드
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Italian ryegrass (Lolium multiflorum Lam.) was cultivated in a field experiment, on sandy loam soil of the Saemangeum reclaimed land, under different sowing rates and N fertilizer levels to estimate the optimum N fertilizer requirement and the most suitable sowing rate for seed production. The experiment was conducted in a split-plot design with four replications. The main-plots were four sowing rates of 10, 20, 30, and 40 ㎏ ㏊<SUP>-1</SUP> and sub-plots were five N fertilizer application rates of 0, 45, 90, 135, and 180 ㎏ ㏊<SUP>-1</SUP>. Harvest index decreased with increasing sowing and N fertilizer rate. The highest N use efficiency was obtained at 10 ㎏ ㏊<SUP>-1</SUP> sowing rate and 45 - 90 ㎏ ㏊<SUP>-1</SUP> N fertilizer application rates. Maximum seed yield of Italian ryegrass based on the regression curve of N fertilizer application level was 102 ㎏ ㏊<SUP>-1</SUP> and was decreased with further N application. Economically, optimum rates of N application ranged from 70 to 101 ㎏ ㏊<SUP>-1</SUP> depending on the sowing rate. Results from this experiment, could therefore inform producers of the best combination of sowing and N fertilizer rates needed to increase profitability of Italian ryegrass seed production alongside preventing N loss. However, further research will be necessary to elucidate on increasing seed quality and stability of cultivation under various environmental conditions.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (20)
참고문헌 신청
Chastain, T.G., C.M. King, C.J. Garbacik, W.C. Young III, and D.J. Wysocki. 2015. Irrigation frequency and seasonal timing effects on perennial ryegrass (Lolium perenne L.) seed production. Field Crops Res. 180:126-134.
Choi, K.J., H.C. Ji, K.Y. Kim, H.S. Park, S. Seo, K.W. Lee, and S.H. Lee. 2011. Growth characteristics and productivity of cold-tolerant “Kowinearly” Italian ryegrass in the northern part of South Korea. Afr. J. Biotechnol. 10(14):2676-2682.
Eghball, B. and J.W. Maranville. 1993. Root development and nitrogen influx of corn genotypes grown under combined drought and nitrogen stresses. Agrono. J. 85(1):147-152.
Elgersma, A. 1990. Seed yield related to crop development and to yield components in nine cultivars of perennial ryegrass (Lolium perenne L.). Euphytica 49(2):141-154.
Gislum, R., B. Boelt, E. Jensen, B. Wollenweber, and K. Kristensen. 2005. Temporal variation in nitrogen concentration of above ground perennial ryegrass applied different nitrogen fertilizer rates. Field Crops Res. 91:83-90.
Choi, K.J., H.C. Ji, K.Y. Kim, H.S. Park, S. Seo, K.W. Lee, and S.H. Lee. 2011. Growth characteristics and productivity of cold-tolerant “Kowinearly” Italian ryegrass in the northern part of South Korea. Afr. J. Biotechnol. 10(14):2676-2682.
Eghball, B. and J.W. Maranville. 1993. Root development and nitrogen influx of corn genotypes grown under combined drought and nitrogen stresses. Agrono. J. 85(1):147-152.
Elgersma, A. 1990. Seed yield related to crop development and to yield components in nine cultivars of perennial ryegrass (Lolium perenne L.). Euphytica 49(2):141-154.
Gislum, R., B. Boelt, E. Jensen, B. Wollenweber, and K. Kristensen. 2005. Temporal variation in nitrogen concentration of above ground perennial ryegrass applied different nitrogen fertilizer rates. Field Crops Res. 91:83-90.
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UCI(KEPA) : I410-ECN-0101-2021-523-001748741