이탈리안 라이그라스 품종비교시험

고서봉,백윤기,김문철 ( Seo Bong Ko,Yun Ki Baek,Moon Chul Kim ) 한국축산학회 1980 한국축산학회지 Vol.22 No.6

This experiment was conducted during the 1978-79 season to evaluate the productivity of 12 cultivars of Italian ryegrass introduced from Japan and West Germany at Jeju. The results obtained are as follows: 1. Tetrone, Dalita and N.F.G. cultivars (West Germany) grew well during the growing season, while Wase-yataka and Lirasand showed faster growth than other cultivars at the early stage of growth. 2. Tetrone Italian ryegrass gave the highest dry matter yield (1,563㎏/l0a), followed by control cultivar (1,561㎏/l0a) and Wase-yataka (1,545㎏/l0a). 3. Productivity of Wase-yataka and cultivar as control were increased significantly (P$lt;0.01) in the early stage of growth, but Mammoth and Dalita showed remarkable productivity in May. 4. For all cultivars, the highest yield was obtained at the 2nd cut and amounted to 50% or more of the total dry matter yield over the growing period.

제주화산회토의 자연초지에 대한 질소 , 인산 , 가리시비의 효과

이근상,고서봉,이희석,강태홍,양승주 ( Keun sang Lee,Seo bong Ko,Hee seok Lee,Tae hong Kang,Seung ju Yang . ) 한국축산학회 1976 한국축산학회지 Vol.18 No.6

This experiment was begun in effort to determine proper amount of N.P.K application in native pasture of Jeju area at elevations of 200m. The experimental field which was applied with rates of 1, 2, 3 and 4 times of 10-10-8㎏ per 10a as basic fertilizer was designed with each of 13 treatments. The results of this experiment that continued from April of 1974 till Nov. of 1975 over two years are summarized as follows. (1) Average plant height showed remarkable increase in proportional application of fertilizer. Particularly, in their same level, the effect of nitrogen and potassium raised higher than that of phosphorus. (2) N application had significant influence on dry matter yield. However, the effect of P on D.M yield was less and was not related to the amount of N-K applied, too. (3) Plant height was closely related to D.M yield. (r=0.792) (4) Percentage botanical composition found an approximately linear increase to fertilizer N.P.K in grass, but fall in response to the highest level in the case of legume. Botanical composition of grass ranged from 66 percent in non-fertilizer to about 80percent in fertilizer treatment and legume from 60 to 5 percent. (5) The crude protein content was increased with the increasing rate of N-K, but the crude fiber content showed not any difference. The effect of increasing phosphorus was not founded. (6) Above results were estimated that moderate fertilizer amount of native pasture was 20∼30㎏ in N, 10㎏ in P and 16∼24㎏ in K per 10a.

화란도입 목초 및 사료무우의 수량 비교

김동암,고서봉,이효원,서성 ( Dong Am Kim,Seo Bong Ko,Hyo Won Lee,Sung Seo ) 한국축산학회 1980 한국축산학회지 Vol.22 No.4

A comparative yield trial has been made on 9 cultivars of grasses, legumes and fodder radish introduced from the Netherlands, with 2 available cultivars N. F. G. perennial ryegrass and Kungjung Chongtae radish as controls at Suweon and Cheju for two years 1978-1979. During the growing season, none of the introduced cultivars significantly outyielded the control cultivar N. F. G. perennial ryegrass, although Barmultra Italian ryegrass and Barspectra westerwolds ryegrass produced 4.6% and 2% more dry matter at Suweon, Barvestra perennial ryegrass and all other cultivars significantly lower than the control. Barmultra Italian ryegrass and Barspectra westerwolds ryegrass produced 12.7% and 3.1% more dry matter than the control cultivar N. F. G. perennial ryegrass at Cheju, but the former was only significantly higher than the control cultivar. Data were also collected on the percentage distribution of yield of ryegrasses and on susceptibility to stem rust.

미토콘드리아 DNA D-loop Region 의 PCR - RFLP 를 이용한 한우 , 제주 재래한우와 타 품종과의 유전적 관계 분석

이성수,고서봉,오운용,양영훈,김규일,조병욱 ( Sung Soo Lee,Seo Bong Ko,Woon Yong Oh,Young Hoon Yang,Kyu Il Kim,Byung Wook Cho ) 한국축산학회 1998 한국축산학회지 Vol.40 No.4

This study was conducted to determine molecular genetic differences between Korean native cattle and Cheju native cattle and also investigated phylogenetic relatiqnships to other cattle breeds using PCR-RFLP analysis of mtDNA D-loop region. The cable breeds investigated were Korean native cattle, Cheju native black cattle, Cheju native yellow cattle, Aberdeen Angus, Charolais, Hereford and Holstein. Seventy DNA samples from 7 breeds (10 samples/breed) were examined at 29 sites restricted by 10 enzymes, of which 8 enzymes showed polymorphism when the D-loop region was digested. The 8 enzymes were Msp I, Rsa I, BstX I, Hsp92II, Mbo I, Hxm, Ava II and Hinc II, and on the other hand the two enzymes, Hha I and BamH I, showed no polymorphism. Restriction types and polymorphic sites were used to construct a phylogenetic tree, where Korean native cattle was more closely clustered with Cheju native yellow cattle than the other breeds.

겉뿌림 초지에 대한 삼요소시비수준이 초지생산성 및 식생에 미치는 영향

진신흠,고서봉,윤익석,이종렬,김문철 ( Sin Heum Jin,Seo Bong Ko,Ik Suk Yoon,Jong Yeol Lee,Moon Chul Kim ) 한국축산학회 1980 한국축산학회지 Vol.22 No.3

Orchardgrass (Dactylis glomerata C.), tall fescue (Festuca arundinacea L.), perennial ryegrass (Lolium perenne L.), Kentucky bluegrass (poa pratensis L.), and ladino clover ( Trifolium repens L.) were sown on a native grassl and dominated by Imperata cylindrica by the oversown method. When the different levels of nitrogen, phosphorus and potassium were applied, the following results were obtained : 1. The dry matter yields of whole pasture were increased by increment of nitrogen fertilizer. Of the newly sown pasture plants, the botanical composition of grasses was increased, but that of clover was decreased. 2. The botanical composition, however, was not influenced by the phosphorus and potassium level. The rate of the newly sown pasture plants in the second year was 20-63% and the ratio of the grasses and legume was 60 : 40. 3. There was statistically marked significance for the dry matter yield by the increment of nitrogen levels; 122.4㎏ (0 ㎏ N), 182. 6㎏ (O ㎏ N) and 230. 9㎏ (20㎏) per 10 a were shown in the first year while 111. 3㎏ (0 ㎏ N), 135. 2㎏ (10 ㎏ N) and 182. 8㎏ (20 ㎏ N) per l0a in the second year. 4. There was no difference among dry matter yields obtained from various phosphorus and potassium levels in the first year, whereas some increased yield was observed in the second year.

이탈리안 라이그라스, 귀리의 혼파비율, 예취 횟수가 사초 생산성 및 사료가치에 미치는 영향

황경준(Kyung Jun Hwang),고서봉(Seo Bong Ko),박형수(Hyung Soo Park),박남건(Nam Geon Park),고문석(Moon Suck Ko),정하연(Ha Yeon Jeong),김문철(Moon Chul Kim),송상택(Sang Teak Song),김대운(Dae Woon Kim) 한국초지조사료학회 2008 한국초지조사료학회지 Vol.28 No.4

본 시험은 제주지역에서 동계사료작물(이탈리안 라이그라스 및 귀리)의 단파 및 혼파시사초생산성과 사료가치를 평가하기 위해 국립축산과학원 제주출장소 조사료포장에서 2003년 10월 상순부터 2004년 6월 중순까지 수행하였다. 시험처리는 예취횟수를 주구로 하여 1회 예취구, 2회 예취구 2수준으로 하고 세구는 혼파방법으로 이탈리안 라이그라스 단파구(T1), 귀리 단파구(T2), 이탈리안 라이그라스 25%+귀리 75% (T1), 이탈리안 라이그라스 50%+귀리 50% (T4), 이탈리안 라이그라스 75%+귀리 25% (T5) 혼파구 등 5처리로 한 분할구 배치 3반복으로 실시하였다. 처리별 예취시 생육상태는 1회 예취구(5/19)의 이탈리안 라이그라스는 유숙기, 귀리는 황숙기였으며, 2회 예취구 1번초 예취시(4월 14일)의 이탈리안 라이그라스는 출수직전이었고 귀리는 출수초기였으며, 2번초 예취시(5월 28일)의 이탈리안 라이그라스는 출수기, 귀리는 유숙기 상태에서 수확을 하였다. 건물생산량은 1회 예취구의 평균 18,680 ㎏에 비해 2회 예취구는 16,771 ㎏으로 유의적인 차이 (p<0.01)를 보였으며, 1회 예취구에서는 귀리가 높은 생산량을 보인 반면, 2회 예취구에서는 이탈리안 라이그라스 단파 또는 혼파구에서 높은 생산량을 보였다. CP 함량은 1회 예취구에서 평균 7.88%인데 비해 2회 예취구는 11.27%로 52%의 높은 증가율을 보였으며, 초종이나 혼파비율에 따른 CP 함량은 이탈리안 라이그라스 단파구나 이탈리안 라이그라스 비율이 높을수록 CP 함량이 다소 높아지는 경향을 보였다. ADF 함량은 l회 예취구에서는 35.8.%로 T5(이탈리안 라이그라스 75%+귀리 25%)에서 가장 높았고 나머지 처리구에서는 24.7~33.3%의 범위였으며, 2회 예취구에서는 T3(이탈리안 라이그라스 25%+귀리 75%)에서 27.5%로 가장 높았고 나머지 처리구에서는 23.4~27.2%의 범위로 나타났다. NDF 함량은 1회 예취구에서는 55.6%로 2회 예취구의 49.5% 보다 높았다. 단파 및 혼파구에서의 NDF 함량은 T1(이탈리안 라이그라스 단파)과 T5(이탈리안 라이그라스 75+귀리 25%)에서 57.4%로 가장 높았고 나머지 처리구에서는 53.5~55.0%의 범위였으며, 2회 예취구에서는 T2(귀리 단파)에서 50.8%로 가장 높았고 나머지 처리구에서는 48.4~50.0%의 범위로 나타났다. TDN 함량은 2회 예취구에서는 68.4%로 1회예취구의 64.0% 보다 높았다. 단파 및 혼파구에서의 TDN 함량은 1회예취구 T2(귀리 단파)에서 69.4%로 가장 높았으며 나머지 처리구에서는 60.6~64.3%의 범위로 나타났으며, 2회 예취구에서도 T2(귀리 단파)에서 70.4%로 가장 높았고 나머지 처리구에서는 67.2~68.8%의 범위로 나타났다. 이상의 결과에서 생산량을 고려할 때 귀리는 1회 예취이용을 권장하고, 이탈리안 라이그라스는 단파 또는 귀리와의 혼파이용 시에는 2회 예취가 적합하며, 혼파비율은 이탈리안 라이그라스 50+귀리 50%가 적합하다고 사료된다. This experiment was conducted to compare forage production and feed value of winter forage crops at the experimental field of Livestock Division, National Institute of Animal Science from 2003 to 2004 in Jeju. The experiment was arranged in slit plot design with three replications. Main plots consisted of two cutting times, one time cutting and two times cutting. Sub plots consisted of 5 different seed combinations, T1 (Italian ryegrass), T2 (Oat), T3 (Italian ryegrass 25+Oat 75%), T4 (Italian ryegrass 50+Oat 50%), T5 (Italian ryegrass 75+Oat 25%). One time cutting showed the highest dry matter (DM) yield by 18,680 ㎏/㏊. Tow times cutting showed the highest crude protein (CP) content by 11.97%. The all treatments have narrow range of total digestible nutrient (TDN) from 60.6% to 70.4%.

방목초지에서 우분 퇴비 시용이 목초생산 및 토양에 미치는 영향

황경준(Kyung Jun Hwang),고서봉(Seo Bong Ko),박형수(Hyung Soo Park),박남건(Nam Gun Park),고문석(Moon Suck Ko),김문철(Moon Chul Kim),송상택(Sang Teak Song) 韓國草地學會 2007 한국초지조사료학회지 Vol.27 No.1

본 연구는 2003년 8월부터 2005년 12월까지 농촌진흥청 난지농업연구소의 기존 혼파 방목초지(해발 200m)에서 실시 하였으며 방목 혼파초지에 우분퇴비 시용에 따른 사초생산성 및 토양 개선 효과를 구명하기 위하여 수행되었다. 화학비료 단용구, 우분퇴비 단용구, 화학 및 우분퇴비의 시용수준, 화학비료와 퇴비의 연차별 교호시용 등의 처리를 두어 우분퇴비 시용이 혼파초지의 사초생산성 및 토양성분에 미치는 영향을 조사하였다. 연간 총건물수량을 비교해보면 시험1년차에는 T1처리구가 11,342㎏/㏊, 시험2년차에는 T5처리구가 13,468 ㎏/㏊, 3년차는 T6처리구가 10,724 ㎏/㏊로 가장 높은 수량을 보였으며 시험기간 동안 평균 건물수량은 화학비료구가 11,486 ㎏/㏊으로 가장 높은 건물생산성을 보였지만 처리 간 유의성은 없었다. 처리별 토양성분 변화는 퇴비구에서 화학비료구 보다 유효인산, 유기물 함량 등이 증가를 보임으로서 토양개선효과가 나타났으며 목초의 식생구성율은 처리구에 따라 큰 차이를 보이지 않았으며 봄철에는 화본과가 다소 높다가 여름철이 지나면서 두과와 잡초의 비율이 상승하는 경향을 보였다. This study was conducted from 2003 to 2005 at crop field of National Institute of Subtropical Agriculture, RDA, in Jeju. The treatment consisted of chemical fertilizer 100%(CF 100%, T1), cattle manure 100%(CM 100%, T2), CF 50%+CM 50%(T3), CF 25%+CM 75%(T4), CM 100%(1st yr.)+CF 100%(2nd yr,)+CM(3rd yr)(T5), CM 100%(1st yr.)+CF 100%(2nd yr.)+CF(3rd yr.)(T6). The highest substitution effect of chemical fertilizer for cattle manure indicated that the highest yield(Avg. 11,169 kg/ha) obtained from CM 100%(1 yr.)+CF 100%(2 yr.) treatment. The forage yield of CM 100%(1 yr.)+CF 100%(2 yr.) was 4% more than CM 100% application whereas was 3% less than CF 100% application. Changes of physical and chemical properties of soils for applications of CF 100% and CM 100% was clearly in cattle manure application. Especially, cattle manure application in pasture were superior to chemical fertilizer application with respect to organic matter(OM, %), total nitrogen(T-N, %), and avaliable phosphorous(P₂O?, %) contents of soils. In this present study, cattle manure application recorded slightly lower forage yields than CF 100% application but the combined use of cattle manure and chemical fertilizer was attribute to reduction of chemical fertilizer application rate as well as maintaining soil health on long-term basis.

제주 화산회통양에서 돈분액비 시용이 순수X수단그라스의 생산성 및 NO₃-N의 용탈에 미치는 영향

박남건(Nam-Geon Park),고서봉(Seo-Bong Ko),이종언(Chong-Eon Lee),황경준(Kyung-Jun Hwang),김문철(Moon-Cheol Kim),송상택(Sang-Teak Song) 한국초지조사료학회 2003 한국초지조사료학회지 Vol.23 No.3

제주 화산회토 초지에 석회 및 인산 시용이 수량 및 무기성분함량에 미치는 영향

고서봉,백윤기,양창범,정창조 제주대학교 농과대학 제주도축산문제연구소 1991 畜産論叢 Vol.6 No.1

To determine the effects of lime and phosphate on dry matter yield and mineral content in mixed sward in Cheju volcanic ash soil from October 1983 to the end of growing season in 1986 . The pH in soil was not affected by lime and phosphate applied, hut exchangeable Ca, Mg and available P were increased h y liming and phosphate levels. Average mean dry matter yield of lime plot was more increased 5% than that non-lime plot, and dry matter yield according to the phosphate (0, 20, 40, 60 kg/10a) applications were significantly increased 488.3kg. 1,024kg, 1,137.0 kg and 1,202.2 kg, respectively. Botanical composition in non-phosphate plot was dominated by Red top but Ladino clover was almost disappearanced However, phosphate applied plot were dominated by Orchard grass and lading clover 50-60 % and 15-20 %, respectively. Mineral (P, K, Ca, Mg) content in herbage were not different between lime and non-lime plot. But P, Ca and Mg were increased according to the phosphate levels.