This study was conducted to determine the optimal spring seeding dates for alfalfa yield and feed value. The experiment was conducted annually for three years (2021~2023) at the field in the Department of Animal Resources Development, NIAS, located in Cheonan. The treatments involved six seeding dates ranging from February 24 to April 14, with 10days intervals. Alfalfa was harvested four times a year at the early flowering stage. Dry matter yield showed a tendency to decrease with delayed the seeding date. However, depending on the climatidc condisions in the seeding year, the dry matter yield on March 14 or 24 was comparable to that on February 24. Annual dry matter yield varied, influenced by the daylight conditions each year. The average feed value did not significantly differ within in the same year with delayed seeding dates (p>0.05). Therefore, the most stable period for alfalfa spring seeding in the central area of South Korea is considered to be from February 24 to April 4, with February 24 indentified as the optimal date.

Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 시험설계
    2. 초장 및 건물 생산량
    3. 사료가치 분석
    4. 통계 처리
Ⅲ. 결과 및 고찰
    1. 평균기온과 강수량
    2. 알팔파의 초장과 건물 생산량
    3. 알파파의 사료가치
Ⅳ. 요약
Ⅴ. 사사
Ⅵ. REFERENCES

• 정승민(농촌진흥청 국립축산과학원 초지사료과) | Seung Min Jeong (Grassland & Forages Division, National Institute of Animal Science, Cheonan 330-801, Republic of Korea)
• 오미래(농촌진흥청 국립축산과학원 초지사료과) | Mirae Oh (Grassland & Forages Division, National Institute of Animal Science, Cheonan 330-801, Republic of Korea)
• 이배훈(농촌진흥청 국립축산과학원 초지사료과) | Bae Hun Lee (Grassland & Forages Division, National Institute of Animal Science, Cheonan 330-801, Republic of Korea)
• 이기원(농촌진흥청 국립축산과학원 초지사료과) | Ki-Won Lee (Grassland & Forages Division, National Institute of Animal Science, Cheonan 330-801, Republic of Korea)
• 박형수(농촌진흥청 국립축산과학원 초지사료과) | Hyung Soo Park (Grassland & Forages Division, National Institute of Animal Science, Cheonan 330-801, Republic of Korea) Corresponding author