Effect of Sowing Date on Growth Characteristics and Dry Matter Yield of Alfalfa in a Dry Paddy Field
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서지정보
ㆍ발행기관 : 한국초지조사료학회
ㆍ수록지정보 : 한국초지조사료학회지 / 42권 / 3호
ㆍ저자명 : Bae Hun Lee, Ki Won Lee, Ji Hye Kim, Se Young Lee, Hyoung Ki Chang, Hyung Soo Park
ㆍ저자명 : Bae Hun Lee, Ki Won Lee, Ji Hye Kim, Se Young Lee, Hyoung Ki Chang, Hyung Soo Park
목차
제목없음ABSTRACT
Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
1. Experiment design
2. Investigation Items
3. Statistical analysis
Ⅲ. RESULTS AND DISCUSSIONS
1. Soil and climatic conditions
2. Alfalfa growth characteristics
3. Alfalfa dry matter yield
4. Alfalfa quality
Ⅳ. CONCLUSIONS
Ⅴ. ACKNOWLEDGEMENT
Ⅵ. REFERENCES
영어 초록
This study aimed to examine the changes in dry matter yield and growth characteristics of alfalfa (Medicago sativa L.) in response to variations in sowing dates during the autumn season of 2021-22 in a dry paddy field of Chilbo-myeon, Jeongeup-si, Jeollabuk-do. Treatments comprised four sowing dates at 10-day intervals, i.e., October 8, October 18, October 28, and November 8, 2021. The winter survival rate of alfalfa showed a significant difference between different treatments but was at a satisfactory level for all (p<0.05). The winter survival rate for the fourth sowing date, a month later than the first sowing date, was approximately 11.7% lower than that for the first sowing date. The plant height ranged between 82.3–93.1 cm and 60.5–63.7 cm at the first and second harvest, respectively, smaller at the second harvest than at the first harvest. The total dry matter yield of alfalfa was the highest at 13,316 kg/ha for the first sowing date, and the later the sowing date, the lower the dry matter yield. The protein content of alfalfa ranged between 13.6–17.3% in the first harvest, lower than the standard alfalfa protein content of 20% or more. In relative feed value, the first sowing (Oct. 8) was the most significantly higher in the first harvest (p<0.05). These results suggest that the early and mid-October sowing dates are optimum for sowing alfalfa during autumn and result in improved plant growth, dry matter yield, protein content, and winter survival compared to those at later sowing dates. Therefore, dry paddy fields can be safely employed for alfalfa cultivation with sowing dates in early and mid-October during autumn.참고 자료
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