초록 ▼

Ⅲ. 연구개발의 내용 및 범위
1. 고랭지에 적합한 초지이용 기술 개발
○ 시험장 소요 자급사료 생산 및 포장관리 : 504ha(초지 430, 사료포 74)
○ 사일리지용 옥수수 재배 및 목건초 생산
2. 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발
○ 국내육성 옥수수의 적정 파종시기 및 생육특성 구명
○ 국내육성종과 도입종의 생산성 및 사료가치 비교
○ 공시품종 : 국내육성 품종(광평옥, 강다옥, 청안옥, 청사옥, 평안옥)도입품종(P3394, P3156, DK697, 32P75,

Ⅲ. 연구개발의 내용 및 범위
1. 고랭지에 적합한 초지이용 기술 개발
○ 시험장 소요 자급사료 생산 및 포장관리 : 504ha(초지 430, 사료포 74)
○ 사일리지용 옥수수 재배 및 목건초 생산
2. 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발
○ 국내육성 옥수수의 적정 파종시기 및 생육특성 구명
○ 국내육성종과 도입종의 생산성 및 사료가치 비교
○ 공시품종 : 국내육성 품종(광평옥, 강다옥, 청안옥, 청사옥, 평안옥)도입품종(P3394, P3156, DK697, 32P75, 33J56)
3. 고랭지 방목초지의 잡초방제와 목초 보파기술 개발
○ 방목초지내 악성잡초 ‘애기수영’ 방제법 개발
○ 잡초방제 후 목초 보파 초지식생 개선

Abstract ▼

Development of appropriate pasture management in alpine region
This experiment was conducted to produce the self-forage for five hundred heads Korean Native Cattle in Hanwoo experimental Station from 2009 to 2010. Total areas of forage producing field was 401ha which was consisted 259ha of grazin

Development of appropriate pasture management in alpine region
This experiment was conducted to produce the self-forage for five hundred heads Korean Native Cattle in Hanwoo experimental Station from 2009 to 2010. Total areas of forage producing field was 401ha which was consisted 259ha of grazing pasture, 88ha of grassland and 54ha of silage corn field. The botanical composition of grazing pasture was mainly Timothy and Orchard grass, Reed canarygrass, Tall fescue, Kentucky bluegrass, Red clover and White clover.
The productivity of grazing pasture was low by 3.0∼4.0 ton/ha because the slope of grazing pasture was very high and paddocks was wide. The grazing season was started from early May to early November and the seeding season of corn was mid-May. Seeding method of maize in slope areas would be recommend contour farming because of reducing the soil erosion in raining season. Frequent rainfall in alpine mountain was cause of making low quality of hay, therefore It would be recommend to making round bale silage or haylage. We can produce 400M/T of hay and 1,200M/T of corn silage and graze 500 heads of Korean Native Cattle if the weeds and shrubs are well controlled in grazing pasture.
The studies on hybrid corn varieties of growth characteristics and D.M. yield in alpine region This study was conducted to investigate the effect of climate change on the growth characteristics and dry matter yields of silage corn hybrids in field of forage crops of Hanwoo Experiment Station, National Institute of Animal Science, RDA, from Apr. 2009
to Sep. 2011.
Corns were cultivated in Daegwallyeong of Gangwon Province located at altitude of 760m. Corns used in this study were consisted of domestic 5 varieties and oversea 5 varieties. The fertilizer were applied with the amounts of customary applications. This study was arranged in randomized block design with three replicates.
The mean temperature during the experimental periods was 16.9℃ in 2009, 18.6℃ in 2010 and 18.0℃ in 2011 respectively. Silk stage of corn was influenced by the temperature difference during the experimental periods.
Difference of silk days according to years occurred at average of 5.5 days. Silk periods of domestic varieties was from Aug. 8 to 12 and that of oversea varieties was from Aug. 5 to 11. Silk day of domestic varieties was approximately 3 to 4 day earlier than that of oversea varieties. Silk days of Kwangpyeongok and P3156 belonging to the early varieties were Aug. 8
and 5, respectively. Kwangpyeongok and P3156 were Aug. 8 and 5, respectively. Pyeonganok and DK729 belonged to late varieties. The mean plant height of corn was approximately 231cm, and Kwangpyeongok and Pyeonganok were 236cm and 237cm, respectively. The mean stem diameter and ear height of corn was approximately 23.2mm and 94cm, respectively. In case of stem diameters, Cheonganok and 33J56 was 86cm and 80cm, respectively. Gangdaok was higher than other varieties. Dry matter yields of Kwangpyeongok and Pyeonganok increased as comparing other varieties. The mean leaf ratio of corn was 39.3%, and that of domestic varieties increased as compared to oversea varieties. DM yields of corn was 16,653kg/ha. DM yields of 32P75, P3156, Pyeonganok, P3394 and Kwangpyeongok were 18,901, 17,997, 17,675, 17,194, 17,188kg/ha, respectively. Total digestible nutrient (TDN) yields of 32P75, P3156, P3394, Pyeonganok and Kwangpyeongok were 13,381, 12,590, 12,532, 12,140 and 12,036kg/ha, respectively. Corn crude protein (CP), in vitro dry matter digestibility(IVDMD), neutral detergent fiber (NDF) and TDN were 7.8%, 74.2%, 42.4%, 23.5% and 70.3%, respectively. In case of nutritive values of corn, there was no significant difference between of corn varieties of domestic and oversea.
Development of weed management in alpine grazing grassland and grass reseeding technology
This study processed from April 2009 to November 2012 in Hanwoo experiment station located in Gangwon pyeongchang province for developing control technology to weed sheep sorrel (Rumex acetocella L.). Daegwallong province located in altitude 76 meters. We studied by three plant physiological periods, vegetation growth stage, flowering stage, and regeneration stage for testing weed control. A physiological vegetation rate of sheep sorrel was altered at 39.3% in vegetation growth stage, 13.2% in flowering stage, and 9.9% in regeneration stage, respectively. In the sheep sorrel-dominated pasture, the weeding rate of physiological periods was indicated by shade percentages, 55% shade division as 37.8%, 75% shade division as 42.7%, and 90% shade division as 100%, respectively. Therefore, sheep sorrel was highly regulated by the day light not much as pasture or mugwort does. The weeding rate of sheep sorrel in flowering stage was 46.7% at 55% shade division, 66.7% at 75% shade division, and 98.3% at 90% shade division. Therefore, sheep sorrel was reduced vegetation rate by day light. It was happen that individual stems of sheep sorrels in flowering stage were break through shade net at shading rate 55-75%. The weeding rate of sheep sorrel in Regeneration stage (Middle August) was 78.4% at 55% shade division, 78.7% at 75% shade division, and 91.7% at 90% shade division. Pasture vegetation rate in this 45 days stages was increase as 48% and mainly contained with mugwort. In the sheep sorrel-dominated pasture, the weeding rate for treatment of selective herbicide (mecoprop) and 90% of shade division were 80.0% and 97.1%, respectively. These data showed that shading control methods was 17.5% greater than herbicide treatment. Germination rate to pasture reseeding showed 34.5% at herbicide treated group and 77.1% at shading treated group. This data indicated that germination rate in shading control methods was 42.2% greater than herbicide treatment. After sheep sorrel control with shading method in the sheep sorrel-dominated pasture, first DM with pasture seeding were produced by 395kg/ha at 55% shade division, 719.7kg/ha at 75% shade division, and 1556.7kg/ha at 90% shade division, respectively.

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 요약문 ... 3
• SUMMARY ... 5
• 목차 ... 8
• 제1장 서 론 ... 9
• 제1절 고랭지에 적합한 초지이용 기술 개발 ... 9
• 제2절 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발 ... 10
• 제3절 고랭지 방목초지의 잡초방제와 목초 보파기술 개발 ... 11
• 제2장 국내외 기술개발 현황 ... 12
• 제1절 고랭지에 적합한 초지이용 기술 개발 ... 12
• 제2절 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발 ... 13
• 제3절 고랭지 방목초지의 잡초방제와 목초 보파기술 개발 ... 14
• 제3장 연구개발수행 내용 및 결과 ... 15
• 제1절 고랭지에 적합한 초지이용 기술 개발 ... 15
• 제2절 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발 ... 25
• 제3절 고랭지 방목초지의 잡초방제와 목초 보파기술 개발 ... 32
• 제4장 연구개발목표 달성도 및 대외기여도 ... 40
• 제1절 목표대비 달성도 ... 40
• 제2절 정량적 성과 ... 41
• 제5장 연구개발결과의 활용계획 ... 43
• 제1절 고랭지에 적합한 초지이용 기술 개발 ... 43
• 제2절 고랭지 사료용 옥수수 우량품종 선발 및 재배이용 기술 개발 ... 43
• 제3절 고랭지 방목초지의 잡초방제와 목초 보파기술 개발 ... 43
• 제6장 연구개발과정에서 수집한 해외과학기술정보 ... 43
• 제7장 기타 중요 변동사항 ... 43
• □ 제1세부과제 ... 43
• □ 제2세부과제 ... 43
• □ 제3세부과제 ... 43
• 제8장 국가과학기술종합정보시스템에 등록한 연구장비 현황 ... 43
• 제9장 참고문헌 ... 44
• <참고> 주요 연구성과 요약 ... 49