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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 305 - 318 (14page)
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Alfalfa (Medicago sativa L.) is an important forage legume grown in Kansas, USA and its productivity with cool-season grasses however is unknown. The objective of this study was to determine the dry matter yield (DMY) and forage nutritive value of alfalfa-grass mixtures compared to those of alfalfa and grasses grown in monoculture with and without nitrogen fertilization. Three different alfalfa varieties were planted (reduced-lignin alfalfa, Roundup Ready, and conventional alfalfa) and two kinds of cool-season grasses (smooth brome, Bromus inermis Leyss, and tall fescue, Festuca arundinacea Schreb) were planted as a monoculture or in alfalfa-grass mixtures. Nitrogen fertilizer (urea) was applied at green-up at a rate of 56 kg/ha and after the second cutting at a rate of 56 kg/ha in 2016 and 2017, respectively. and control treatments received no nitrogen. DMY was significantly higher in monoculture alfalfa and alfalfa-grass mixtures than in grass monocultures. Between alfalfa monoculture and alfalfa-grass mixtures, no significant differences in DMY were found. For all treatments, nitrogen application significantly increased DMY compared to the control. In 2016 and 2017, the low-lignin alfalfa monoculture had the lowest acid detergent fiber (ADF) and the grass monocultures had the highest ADF. In 2016 and 2017, neutral detergent fiber (NDF) in smooth bromegrass and tall fescue was higher than in other species treatments. A low-lignin alfalfa monoculture had significantly lower NDF concentration compared to alfalfa-grass mixtures. When averaged over 2016 and 2017, relative feed value (RFV) was highest in low-lignin alfalfa and lowest in the grass monocultures. In both years, nitrogen fertilizer application did not affect nutritive values.
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참고문헌 (41)
참고문헌 신청
Barness RF / 2003 / Forages. Volume 1: an introduction to grassland agriculture / Iowa State University Press
Lacefield G / 2009 / Growing alfalfa in the South / National Alfalfa and Forage Alliance
Laxman Adhikari / 2017 / Nodulation response to molybdenum supplementation in alfalfa and its correlation with root and shoot growth in low pH soil / Journal of Plant Nutrition 40(16):2290~2302
G. H. Heichel / 1991 / Dinitrogen Fixation, Nitrogen Transfer, and Productivity of Forage Legume‐Grass Communities / Crop Science 31(1):202~208
S.S. Malhi / 2002 / Effectiveness of alfalfa in reducing fertilizer N input for optimum forage yield, protein concentration, returns and energy performance of bromegrass-alfalfa mixtures / Nutrient Cycling in Agroecosystems 62(3):219~227
Lacefield G / 2009 / Growing alfalfa in the South / National Alfalfa and Forage Alliance
Laxman Adhikari / 2017 / Nodulation response to molybdenum supplementation in alfalfa and its correlation with root and shoot growth in low pH soil / Journal of Plant Nutrition 40(16):2290~2302
G. H. Heichel / 1991 / Dinitrogen Fixation, Nitrogen Transfer, and Productivity of Forage Legume‐Grass Communities / Crop Science 31(1):202~208
S.S. Malhi / 2002 / Effectiveness of alfalfa in reducing fertilizer N input for optimum forage yield, protein concentration, returns and energy performance of bromegrass-alfalfa mixtures / Nutrient Cycling in Agroecosystems 62(3):219~227
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