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RISS 인기검색어
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- 저자 : 정창조 ( MOON CHUL KIM (검색결과 6 건)
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제주산 억새의 이용시기가 Silage 품질에 미치는 영향
정창조(Chang Cho Choung),김문철(Moon Chul Kim),김승호(Seung Ho Kim),백윤기(Yun Ki Paik) 한국축산학회 1984 한국축산학회지 Vol.26 No.1
A study was carried out to ascertain the suitability of Miscanthus sinensis for silage production. Two trials were made to evaluate the seasonal silage quality and cattle responses. The dry matter yield increased from May until the second week of September and then tailed off towards the end of month. The total dry matter yield per 10 a. of M. sinensis during September was 1,222 ㎏, the ratio between leaf and stem of M. sinensis was 48:62 during entire growth. The protein content of the grass was 8.89% in May but detriorated to 4.26% by the middle of October. The seasonal dacron bag digestibility of dried natural M. sinensis was the highest in early May (33.06%), 13.99% in August and down to 12.72% in October. There was significant correlation (P$lt;0.01) between growing days and percentage of protein, and dacron bag digestibility. As the season progressed the digestibility and protein content were reduced. The digestibility of fermented M. sinensis (at different stages of fermentation) increased from 19.38% to 25.76%, compares with the original dried material. The in vivo digestibility of M. sinensis silage using fistulated sheep was 46.2% with a dry matter intake of 465 g/head/day. The feeding trial using 9 growing cattle showed that the D.M. intake of M. sinensis silage (T2) was 2.95 ㎏/head/day, with urea added silage (T3) intake was 2.55 ㎏/head/day and with hay (T1) 4.03 ㎏/head/day. The group mean live weight gain was 35.00 ㎏ in T2, 23.67 ㎏ in T3 and 32.67 ㎏ in T1.
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제주화산회토양에 있어서 목초의 인산이용에 관한 연구 2 . 흑색화산회토에서 orchardgrass 와 Iadino clover 의 용인과 인광석 이용
김문철,정창조,김동암 ( Moon chul Kim,Chang cho Choung,Dong am Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.1
The growth responses of Dactylis glomerata and Trifolium repens to fused-phosphate and rock-phosphate were compared on the very dark brown and black volcanic grassland soil in the outdoor pot experiment. The results obtained were as follows. 1. Dry matter yield of orchardgrass and ladino clover on black soil increased as affected by fertilizer levels applied. There was a rapid increase in dry matter yield of orchardgrass, but a slow increase in ladino clover, only about half the dry matter yield compared to orchardgrass. 2. There was a similar effect on the DM of orchardgrass when fused phosphate was applied compared to rock-phosphate. However, in the case of ladino clover, there were greater dry matter yields with the application by fused phosphate than with rock phosphate. 3. The phosphorus content of orchardgrass grown in black soil increased according to the level of fertilizer applied. The orchardgrass to which fused phosphate was applied contained more p-concentration than that to which rock phosphate was applied. But that of ladino clover was not affected according to fertilizer levels applied. 4. In these two species investigated, there was no marked difference in Ca, Mg, and K content according to papplication level, method of mono-culture or mixture, and kind of phosphate fertilizers.
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제주화산회토양에 있어서 목초의 인산이용에 관한 연구 1 . 농암갈색 화산회토양에 있어서 목초류의 인산비료이용
김문철,정창조,김동암 ( Moon chul Kim,Chang cho Choung,Dong am Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.2
This study was carried out to determine the effect of phosphorus fertilizer in very dark brown volcanic ash soil. These trials were made to evaluate the dry matter yield and mineral concentration response of orchardgrass, perennial ryegrass, tall fescue, reed canarygrass and ladino clover. 1. On very dark brown soil, the best adapted pasture species were orchardgrass and ladino clover. Their dry matter yield increased with increasing levels of phosphorus fetilizer. 2. In proportion to the phosphorus application level, the phosphorus content of passture species increased. This increase was greater in legume species than in grass species. 3. Phosphorus application levels had little effect on Cai Mg and K content, but when no phosphorus was applied, the Ca, K and Mg content was higher. 4. With increased phosphorus application levels, the percentage N of grass species investigated decreased, while in legume species the N percentage increased.
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도입 청예맥류 Triticale 의 제주지역 적응성에 관한 연구
김문철,정창조 ( MOON CHUL KIM,CHANG CHO CHUNG ) 한국축산학회 1978 한국축산학회지 Vol.20 No.3
This experiment was carried out to evaluate the triticale as a green forage at the National University Livestock Research Farm, JEJU, during the period of October, 1976-September, 1977. The forage crops referred to are triticale, barley, wheat and Italian ryegrass. The results obtained are as follows: 1. In all cases, at maxium growth, forage crops mixed with hairy vetch gave better results than these grown separately. plant heights in order of merit, Italian ryegrass (140.5㎝), wheat(106.4㎝), triticale(102.9㎝) and barley(82.9㎝). 2. In the case of mixed treatments the botanical composition was changed from grass domination in early stages of growth to hairy vetch domination at advances growth and cutting times. 3. Total yield of freshly cut green forage material per 10a, Italian ryegrass(1.314㎏), wheat(530㎏), barley(433㎏), and triticale(423㎏). A high statistical significance was obtained in dry matter yield of the mixed treatments compared with the pure one (p$lt;0.01). There eras highly a significant difference between Italian ryegrass and the other species(p$lt;0.01). But no significant differences were found when the other species were compared with each other. 4. The nutritive value of forages was highest in the early stage of growth, and became progressively lower as the plants advanced in maturity. Forages which included vetch appeared to be higher in digestibility than these some sown singly, Italian ryegrass among the fewer species showed the highest digestibility coefficient.
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화산회토양 초지에서 퇴비시용이 목초생산 및 인산이용에 관한 연구
김문철,송성준,정창조 제주대학교 1985 논문집 Vol.20 No.-
The growth response of pasture species on phosphorus utilization of two compost application methods was compared on black and very dark brown volcanic ash soils. With the expection of orchardgrass in very dark brown soils. the establishment of pasture species was reduced if seed was mixed P-fertilizer and compost when compared with no compost or compost treatment not mixed with seed and P-fertilizer. Compost treatment caused increasing dry matter yields of pasture in the two soil types tested. However, ladino clover, grown in black soil, did not benefit from compost treat-ment There was a higher P content of pasture in very dark brown soil than in black soil. but compost treatment did not have any effect on the P content of pasture species. The Ca and Mg content of pasture species also did not affected by compost application. When compared with orchardgrass to the contents. there were higher in ladino clover. As the cutting time advanced, these of ladino clover increased. but orchardgrass decreased.
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