• 한국산림과학회지
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• 제74권1호
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• pp.10-15
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• 1986

본(本) 연구(硏究)는 지금까지 이룩한 산지초지조성(山地草地造成)의 실적(實績)을 조사(調査) 분석(分析)하므로써 국토의 합리적 이용과 산지이용구분(山地理用區分)을 위해 실행되었다. 연구대상지(硏究對象地)는 강원도(江原道)의 선진축산지역(先進畜産地域)으로 볼 수 있는 평창(平昌), 횡성(橫城), 홍천(洪川) 3개군(三個郡)에 결쳐 토지(土地)의 성공지(成功地), 실패지(失敗地), 임간방목지(林間放牧地) 30개소(開所)를 개정(改定)하여 현지답사(現地踏査)하여 초지조성농가(草地造成農家) 398인(人)에게 설문서(說問書)를 발송(發送)하여 회수(回收)된 133인(人)을 대상(對象)으로 분석(分析)하였다.

• 한국초지학회:학술대회논문집
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• 한국초지조사료학회 2002년도 창립 30주년 International Symposium
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• pp.131-156
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• 2002

Although economically viable, the livestock industry is currently facing a number of challenging environmental problems and highly complex social issues, many of which are related to its size and geographically concentrated nature. Increased emphasis on environmental quality has also placed new demands on livestock producers to ensure that their production practices are in harmony with natural environment. In terms of sustainable agricultural systems, ruminants have served and will continue to serve a valuable role. They are particularly useful in converting vast renewable resources from rangeland, pasture, and crop residues or other by-product into food edible for human. With ruminants, land that is too poor or too erodable to cultivate becomes productive. Also, nutrients in by-products are utilized and do not become a waste-disposal problem. In Korea, however, native and dairy cattle production is not consistent with the advantageous roles of ruminant livestock in sustainable agricultural system because imported feed grains become the main basis for cattle raising. At present the ruminant livestock producers are heavily concentrated in and around the urban areas. About 75% of all the nation's cattle herds are kept on the outskirts of urban areas. As a result, the amount of pasture and forage land available per head of cattle is generally small. Furthermore, animals are raised in a cattle shed with high density. This situation is rather unfavorable for the national economic and environmental points of view As nation income increased, the demand for livestock products grew at an unforeseeable pace. But the pasture area involving in current utilization is tended to decrease during recent years. Based on the above figures more than 250,000 ha of pasture ought to be available for the present herd of cattle. It is obvious that these needs can scarcely be met with arable lands. Lands area for the establishment of new grassland have to be found in the hills and mountains which have not yet been used for crop framing or livestock. The development of extensive grasslands in the hill and woodland areas is now a declared aim. The starting point of the present work is the lack of knowledge of forage production and utilization in hill pasture and woodland in spite of indispensable necessity for livestock production in Korea. The importance of pastoral system in hill region and woodland is particularly emphasized in a standpoint of sustainable livestock production. Main chapter comprises the principle and techniques applicable for improving the utilization of hill pasture and woodland. We finally discussed the problems to solve and future works for a successful livestock production in hill and mountainous area in Korea.

• 한국초지조사료학회지
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• 제27권4호
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• pp.281-286
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• 2007

초지조성과 개량에서 겉뿌림은 중요한 방법 중의 하나이다. 오늘날 겉뿌림 초지조성에서 종자피복기술은 관심이 높아지고 있다. 따라서 본 시험은 산지초지에서 겉뿌림조성시 목초의 출현율과 정착율을 높이기 위해 화본과목초종자의 피복기술을 개발하기 위하여 실시하였다. 종자 펠렛팅은 피복시간을 단축하고 단위시간당 피복량을 증가시킴으로서 종자피복의 새로운 기술로 평가되었다. 펠렛종자의 건조시간을 단축하고 건조온도를 낮춤으로서 화본과 목초종자의 발아세와 발아율이 증가하였다. 임간초지에서 펠렛종자는 종자의 출현, 정착 및 초기생육을 향상시켰다. 이상의 시험결과를 볼 때 임간초지에서 종자 펠렛팅 기술은 화본과목초의 정착과 초기생육 향상을 위한 새로운 기술로 평가되었다.

• Journal of Animal Science and Technology
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• 제47권3호
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• pp.475-480
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• 2005

Surface sowing is one of the most important methods to establish and improve grassland. An interest in seed-coating technique for surface sowing has been increased tremendously in the world today. An experiment was conducted to develop a technique for pelleting seeds for pasture production in woodlands. Results showed that pelleting seeds was a better technique than coating seeds because the pelleting reduced coating time of seeds, and it increased the amounts of coated seeds per hour. The pelleting technique was able to minimize damage to seeds through the lower temperature processing and by reducing time for drying, thus, germinating energy, and germination rate of pelleted alfalfa seeds improved. Emergence, establishment, and early growth of alfalfa from pelleted seeds were also improved in woodlands. Based on this study, we could conclude that the seed-pelleting is a very useful technique for the establishment and early growth of alfalfa in woodlands.

• 한국토양비료학회지
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• 제19권3호
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• pp.231-238
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• 1986

산지(山地)의 경사도(傾斜度)($10^{\circ}$, $20^{\circ}$, $30^{\circ}$) 및 3요소(要素) $N-P_2O_5-K_2O$ (0-0-0, 14-10-10, 28-25-25, 42-40-40kg/10a) 수준(水準)이 겉뿌림 산지초지(山地草地)(orchardgrass, tall fescue, redtop, ladino clover 혼파(混播))의 조성(造成), 생산성, 식생(植生) 및 목초품질등(牧草品質等)에 미치는 영향(影響)을 구명(究明)하였다. 본교(本橋)에서는 토양(土壤) 및 목초중(牧草中) 무기양분(無機養分)의 함량(含量) 및 상호비율(相互比率)을 grass tetany 발생위험성(發生危驗性)과 연관(聯關)하여 검토(檢討)하였다. 1. 토양중(土壤中) 치환성(置換性) Mg 함량(含量)이 낮고, CEC, K, Ca에 대한 Mg 비율(比率)이 부적합(不適合)하여 목초(牧草)의 정상생육(正常生育)에 불리(不利)하였고, tetany 발생(發生) 가능도(可能度)를 높여주는 조건(條件)이였다. 이는 경사도(傾斜度) 및 3요소시용수준(要素施用水準)이 증가(增加)된 토양(土壤)일수록 더욱 불량(不良)한 조건(條件)이 되었다. 2. tetany발생(發生)이 가능(可能)한 조건(條件)(목초중(牧草中) Mg 함량(含量) < 0.2%, K > 2.5%, K/(Ca＋Mg)당량비(當量比) > 2.2)과 비교(比較)할때 Mg함량(含量)은 0.09~0.14%, 3요소(要素) 보비수준시(普肥水準時) K 함량(含量) 2.6% 및 K/Ca+Mg 당량비(當量比) 2.5를 보였다. 일반적(一般的)으로 경사도(傾斜度) 및 3요소(要素) 시용수준(施用水準)이 증가(增加)할수록 tetany 발생(發生) 위험성(危驗性)이 높아지는 불리(不利)한 지성(持性)을 나타내었다. 3. 산지초지(山地草地)의 토양(土壤) 및 목초중(牧草中) Mg 함량(含量) 및 염기간(鹽基間)의 상대비(相對比)가 목초생육(牧草生育) 뿐만 아니라 가축건강유지(家畜健康維持)에 부족(不足)한 수준(水準)이었으며 경사도(傾斜度) 및 3요소(要素) 시용수준(施用水準)이 증가(增加)할수록 Mg 시비(施肥)와 방목우(放牧牛)에 별도(別途)의 Mg 염(鹽)의 공급(供給)이 필요(必要)하였다. 4. 목초중(牧草中) Ca/P비율(比率)은 경사도별(傾斜度別) 차이(差異)는 없으나 3요소(要素) 시용수준(施用水準)이 증가(增加)할수록 낮아지며 그 범위(範圍)는 평균(平均) 1.0~2.0을 나타내었다.