• KOREAN JOURNAL OF CROP SCIENCE
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• v.26 no.4
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• pp.311-317
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• 1981

As the low labor-productivity is being floated up to be the most limiting factor in barley cropping, the endeavor of many researchers concerned have been concentrated on recovering from that. For this reason, in this experiment 8 kinds of sowing methods were employed to survey the yield productivity and the labor-requirement of each methods. And with promising the possibility of consistent mechanization, both prediction of the assurable requirement of labor investment and calculation of the labor productivity in each method were estimated so that the possibility of labor-saving in barley cultivation investigated. Also sowing methods for labor-saving cultivation were presented according to the labor-structure of farm as divided with the phases.

• Korean journal of applied entomology
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• v.60 no.4
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• pp.417-422
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• 2021

This study aimed to provide information on the biodiversity of various arthropods living in paddy fields during the winter season by examining their incidence density. Insect collection was carried out by 50 × 50 cm grids of soil surface and plants from paddy fields, as well as from ridges between paddies, using a battery-powered aspirator. The total number of individuals collected from paddy fields and inter-paddy ridges was 41,197, most of belonged to the orders Collembola, Hemiptera, and Diptera. Arthropods showed similar appearance patterns in fields under both organic and conventional farming. However, a higher number of insects was collected in organic farms. The species diversity, species richness, and species evenness were all greater in inter-paddy ridges than in paddy fields, in a statistically significant manner (P < 0.05).

• Landscaping Tree
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• s.108
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• pp.31-33
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• 2009

화단이나 정원. 공원 등 외부 생활공간의 그늘이나 반 그늘진 곳에 심는 종으로 수호초(秀好草)가 많이 쓰이고 있다. 맥문동과 함께 상록성이면서 키가 크지 않고 심어두면 생장속도가 꽤 빨라 조기에 지면을 덮어주기 때문이다. 특히 우리나라 전역에서 겨울에도 상록으로 월동함으로 사계절 볼거리를 주어 활용범위가 넓은 식물이다. 문헌상 한국에 자생한다고 되어있으나 아직 자생지에서 확인된 경우는 없는 듯 하며 우리나라에 심겨진 것은 대부분 일본에서 들어온 종이 아닌가 싶다. 영명이 Japanese spurge이다. 키가 작아 분화용으로 가능할 것으로 보이지만 반덩굴성으로 옆으로 깔리며 자라기 때문에 나무 밑이나 건물 그늘진 곳의 화단용으로 적합하다. 요즘 점차 수요가 늘고 있는 옥상정원용으로 우수할 것으로 생각된다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.75-76
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• 2002

우리나라 연근해에서 일시에 대량으로 어획되는 정어리 (Sardinops melanostictus)는 현재 주로 액젓의 원료로 쓰이고 있는 멸치와 같이 청어목, 청어과에 속하며, 동해 남부해역에서 월동을 하고 봄이 되면 북상하는 계절 회유성 어종이다. 정어리는 대표적인 등 푸른 생선으로 양질의 아미노산 및 핵산관련물질과 같은 맛 성분의 함량이 높지만, 어체가 작고 잔뼈가 많아서 가공을 위해 기계적으로 처리하기에는 부적합한 결점을 지니고 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.344-345
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• 2000

근해안강망어업에서 주로 어획되는 수산자원은 참조기, 갈치, 아귀등의 저서성어류로서, 겨울에는 월동장인 우리나라 서해남부 및 동중국해 북부해역으로 남하회유하고 봄이 되면 황해 및 중국 연안의 산란장으로 북상이동하는 계절회유를 한다. 따라서 근해안강망어업의 주간어황은 황해 및 동중국해에 서식하는 대상어업자원의 자원량변동의 영향을 받으며, 해황의 변동에 따른 회유경로의 경년변동 및 계절회유에 의한 주 서식처의 변동, 조석의 변동, 어장의 일기등의 영향을 받는다. (중략)

• Proceedings of the Korean Society of Grassland Science Conference
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• 1999.06a
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• pp.75.2-76
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• 1999

1996-1998년까지 3개년에 걸쳐 경기 수원, 경북 경산 및 제주지역에서 수행된 시험결과 오처드그라스 공시품종의 생육특성, 건물 수량 및 사료가치는 다음과 같았다. 오처드그라스의 유식물에 있어서 활력은 Dawn 품종이 7점으로 보통이었으나 다른 품종은 8-9점으로 높은 편이었다. 내병성에 있어서는 공시품종간에는 차이가 없이 8점으로 양호한 편이었다. 월동률에 있어서는 Kara 품종이 85%로 가장 낮았으나 기타품종은 91% 이상으로 높았다.(중략)

• Proceedings of the Korean Society of Grassland Science Conference
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• 1999.06a
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• pp.76-77
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• 1999

1996-1998년에 걸쳐 경기 수원, 경북 경산 및 제주에서 시험결과 우량품종으로 선발된 이탈리안 라이그라스의 생육특성과 건물수량 및 사료가치는 다음과 같았다. 월동률에 있어서 FL80(장려품종)이 중북부 지역인 수원에서 69%로 가장 낮았고 Marshall(장려품종) 및 Grazer 등이 가장 높았다. 숙기는 Grazer 및 FL80(장려품종)이 4월 중순에 출수가 시작되어 가장 조생종으로 평가되었다.(중략)

• Proceedings of the Korean Society of Grassland Science Conference
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• 2000.09a
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• pp.106.2-107
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• 2000

• Journal of The Korean Society of Grassland and Forage Science
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• v.36 no.4
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• pp.287-292
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• 2016

The objective of this study was to determine the effect of harvesting time of rice on growth characteristics and dry matter yields of Italian ryegrass (Lolium multiflorum Lam., IRG) 'Kowinearly' after seeding them in paddy field. Experiments were performed in National Institute of Animal Science, RDA (Cheonan, Choongcheongnam-do province of Korea) for four years (2011~2014). Italian ryegrass variety 'Kowinearly' was seeded at experimental paddy fields before rice harvest in late September. Rice were harvested at 10, 20, and 30 days after seeding of IRG. As the harvest time of rice became later, the number of tillering before winter was reduced and IRG plant length before winter was shorter. The dry matter yield of IRG was also reduced. When rice were harvested at 20 days and 30 days after sowing of IRG compared to the rice harvested in autumn at 10 days after sowing of IRG, the number of tillering for IRG before winter was decreased by an average of 19% and 40%, respectively. The winter survival ratio of IRG was decreased by an average of 13% and 19%, respectively. Their dry matter yields were also reduced by an average of 8% and 19%, respectively. The heading date was different from each other in three years. The plant length at the time of IRG harvest in the spring was not significantly different among treatment groups. Taken together, our results suggest that when Italian ryegrass is grown in paddy fields by the method of 'seeding of IRG before rice harvest', rice should be harvested as soon as possible after sowing of IRG 'Kowinearly' in the autumn to increase forage productivity.

• Journal of The Korean Society of Grassland and Forage Science
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• v.34 no.1
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• pp.52-59
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• 2014

This study was conducted to estimate the Hanwoo carrying capacity when whole crop wheat, as a winter forage crop, was grown on mixed-sowing of legume forage and by applying cattle manure on the productivity and feed value of whole crop wheat during the period of 2012~2013. The experiment was conducted in a split plot design with three replications. The main plots consisted of three different culture methods such as whole crop wheat and mixed sowing combination with hairy vetch or forage pea. The subplots consisted of four different applications of cattle manure (0, 50, 100 and 150 kg N/ha). The annual amount of dry matter (DM) of whole crop wheat in Gyeongju were higher than those of in Gyeongsan and Yeongju, and the mixed-sowing of hairy vetch mixture was the highest (p<0.05) compared with the single-sowing of whole crop wheat and mixed-sowing of legume in Gyeongju. The DM amounts were increased proportionately corresponded to the applying level of cattle manure, and was found to be significantly (p<0.05) high at the level of 100 and 150 kg/ha groups. With the feed value of forage, the crude protein (CP) contents tended to be higher in the mixed-sowing of legume than the single-sowing of whole crop wheat at the wintering experimental sites of legume. For whole crop wheat, total digestible nutrients (TDN) content was the highest in the mixed sowing plots of forage pea in Gyeongsan; however, there was no significant differences among the single-sowing of whole crop wheat. The carrying capacity of Hanwoo (head/ha) was higher (p<0.05) in Gyeongju (3.83 head) than that in Gyeongsan (3.11) and Yeongju (1.35). Further, the carrying capacity in the single-sowing of whole crop wheat was lower than that in the mixed-sowing of legume, and the hairy vetch was the highest among the mixed-sowing groups (p<0.05). Overall, the present results recommend taking into account the wintering for the mix-sowing of legume in Gyeongbuk province. The cattle manure may be applied for legume in the wintering unavailable regions. In addition, applying cattle manure at the level of 100~150 kg/ha and the mix-sowing of legume may increase the productivity per unit area and feed value, including the CP, for improving the carrying capacity of Hanwoo.