Peat 연구의 현황과 전망

밝훈 한국토양비료학회 1990 한국토양비료학회 학술발표회 Vol.1990 No.45

인삼재배 분야의 과거 20년 연구

밝훈,Park, Hoon 고려인삼학회 1996 Journal of Ginseng Research Vol.20 No.4

Researches on mineral nutrition, physiology and phyrsiological diseases, . cultivaction methods. brceding. pest control quality management and extension during 1976-1995 in Korea were reviewed Review in brceding and pest control was restricted to the researches directely related to cultivaction. Mineral nulrient up take. partion and varicos factors such as top dreasing. Light intersity etc. and interrelationship between minerals were investigated. Top dressing was not effective due to low minera1 requorement Physiological characteristics on tempelature light and water were well elucidated and applied to assess traditional cultivation method and its inovation. Photosyrnthetic pigments. light harvest proteins and activity of related enzymes were studied. In nitrogen metabolism arginine, praline, ammonium, threonine appeared to have important role in re growth of shoot Saponin metabolism was studied in relation to growth and new ginsenosides were found but physiological role of saponin was not clearly elucidated yet Endogenous growth regulators were reported and various erogenous growth regulators were studied for growth stimulation. short stem and seed pruning etc. Various physiological diseases were investigated for cause and control measures were established. Water culture was little studied Forest culture was studied but not retched the recommendable stage Drip irrigation straw mulching. seasonal shading and soil preparation method including soil fertility adjustment were established for practical application. Shading materials completely changed to polyethylene net and materials of polymers The research on ginseng cultivation in paddy field opened the way to establish the permanent ginseng cultivation plantation Ginseng harvester and seeder were developed in the late 1950s. Transplanted and many other machines were developed in the early 1990s. In ginseng breeding only pure line selection was of practical significance several verities were at the stage of seed propagation at ginseng plantations. Mutation breeding (${\gamma}$-ray. X-ray chemicals) was not successful. The research on plantlet formation through tissue culture was a little progressed but still far behind to vegetative propagation. Disease control research was concentrated in the isolation and identification of pathogans. their ecological charactelistics and biological control and soil humigation. Potato root rot nematodes was found and control method was established. Insect and small animal control research was greatly progresses in identification, ecological investigation, and ecological and physical control. Weed control was less important due to the development of mulching method of ridge and ditch. Quality factors of raw ginseng in relation to red ginseng process were extensively studied. Traditional quality measures were elucidated in accordance with modern analytical chemistry resulting in the importance of peptides in the centrat part rather than ginsenosides For large root production growth promoting rootzone micrcorganisms (PGPRM) were isolated and active compounds were identified. Field test on PGPRM was on going. Varictus methods formality improvement through cultivation were developed. Management research of ginseng production was rare Extension was active throuch official and private organizations and through workshop for the extension specialists, and direct lectures to grower's. Extension services made the researcher to understand the existing problems at grower's fields. Research environment for ginseng production was in prime time only for three years when Korea Ginseng Research Institute was established then gradually aggravated.

인삼연구 및 지도의 Infra 구축 방향

밝훈,Pack Hun 한국인삼전략화협의회 2005 인삼·약초 Vol.3 No.6

인삼생산에 있어 생리특성, 재배조건 및 품질의 상호관계

밝훈,Park, Hoon 고려인삼학회 1992 Journal of Ginseng Research Vol.16 No.1

일본의 최근 인삼수출입 동향

밝훈,Park, Hoon 고려인삼학회 1994 Journal of Ginseng Research Vol.18 No.3

Recent trend of ginseng (p. ginseng) trade in Japan was analyzed. From 1984 white ginseng import increased continuously to 240% while export of red ginseng decreased to 29%. Red ginseng import increased until 1990 and decreased thereafter, resulting in 12% of total import ginseng in 1993 from 47% in 1990. During five years (1989∼1993) white ginseng import from Korea decreased from 44% to 14% of total white ginseng imported while import from China increased. Red ginseng import from China ranged 97 to l00% of total red ginseng and little change was shown during five years. Price of Korean ginseng was higher than that of China by 2.2 times for white and 6.6 times for red. The continuous decrease of Chinese ginseng price might affect import trend. Export price of red ginseng increased continuously and was higher than that of Korean red ginseng (1.95 times) and much higher than import price (20 times in 1993).

원료삼 생산수익 결정모형

밝훈(Hoon Park) 고려인삼학회 2009 Journal of Ginseng Research Vol.33 No.3

원료삼 생산에 있어 총수익(R)을 결정하는 4요인 승법 모형을 설정하고 (R=AYQP) 세 농가의 수납실적 수치를 사용하여 총수익 결정식임을 확인하였다. 4요소는 자본요소인 재배면적(A), 기술요소인 단위수량(Y)과 가중평균 품질등급(Q) 그리고 시장요소인 평균등급 가격(P)의 3요소로 해석하였다. 기술요소인 YQ는 자본(A)과 수익(R)의 직선모형에서 기울기가 되어 단위자본의 수익창출계수임을 밝혔다. 수익결정식은 인삼산업의 발전이 재배수량과 품질 향상기술 YQ를 증대시켜 면적(A)을 감소시킴으로서 수익(R)을 높여 시장가격(P)을 낮추는데 있음을 보여주었다. To better understand how to increase a ginseng grower's revenue, a 4-factor revenue determination model (RDM) of raw ginseng production (R=AㆍYㆍQㆍP) was proposed. The total revenue (R) is a multiplicative function of four factors: cultivation area(A), unit yield (Y), quality grade (Q) and unit price (P). The A appears to be a pure capital factor. Y and Q are technological factors and P is social and market factor. When P is constant, the technological term (YQ) is the revenue per unit area (R/A) production efficiency per capital. The RDM appears to be a linear model between R and A with the slope [YQ]. RDM was applied to three farmers' raw ginseng production for assessment of its dependency on capital and technological factors.

인삼탄저병균에 대한 인삼보호효과를 나타내는 신규미생물

이병대,밝훈,신점호,허회정,조현주 고려인삼학회 2011 고려인삼학회 학술대회 Vol.2011 No.4

훼어웨이 경사의 토양 깊이별 무기성분 분포

최병주,주영희,밝훈,Choi, B. J.,Ju, Y. H.,Park, H. 한국잔디학회 1997 한국잔디학회지 Vol.11 No.2

Soil chemical properties were investigated to elucidate vertical movement of mineral nutrients in a fairway slope of 27 year-old golf course. Soil samples were taken at every 10cm depth to 4Ocm on 4 sites 20m apart each along two parallel lines 60m apart on the slope(15˚) in August. Accord-ing to the similarity of vertical distribution pattern they could be classified into 6 distinctive groups(magnesium, nitrate, phosphorus, ammonium, manganese and copper) and the slope tended to affect the vertical movement of minerals. The contents of Ca and Mg increased with depth while NO$_3$-N and Zn decreased and correlated positively. Soil pH showed significant positive correlation with depth, Ca and Mg. Phosphorus content was highest in 10~20cm depth and decreased resulting in relatively high content in 30~40cm depth of the bottom site of slope. Iron distribution pattern was similar to phosphorus. Potassium and $NH_4$showed various(irregular) patterns. Mn was highest in the deep layer at the lower sites of slope but it was reverse at the upper sites and negatively correlated with Fe. Cu content incresed with depth and heighest in 20~30cm depth. Electroconductivity showed significant positive correlation with $NO_3$-N. Magnesium, cal-cium and copper seem to be prone to defficiency due to fast leaching, and nitrate and phosphorus prone to excess problem. Preventive measures on acidification of surface soil should be taken.

Gliocladium spp(KGPF - S27) 에서 인삼생육 촉진물질의 분리동정

이종화,이미자,밝훈,윤종혁 한국농화학회 1992 Applied Biological Chemistry (Appl Biol Chem) Vol.35 No.4

초대형인삼(500g이상/뿌리) 개발을 목적으로 대형인삼 근권미생물에서 인삼냉장 촉진물질을 탐색한 일부 결과이다. Gliochladium을 malt extract 배지에서 배양한 여액의 ethylacetate획분을 인삼유묘 검정과 silicagel column 크로마토그라피, semiprep-HPLC를 이용하여 단계별로 분획을 분리 정제함으로써 활성물질을 단리하였다. UV, High-resolution MS, ¹H, ¹³C-NMR에 의하여 분자조성은 C_18H_(23)O₃Cl이고, 분자구조는 3-(3,7,7-trmethyl-2,6-heptadienyl)-5-chloro-orsellinaldehyde로 밝혀졌다. 이 물질은 Collectochlorin B로 담배역병균에서 분리 보고된 것이다.

잔디생육에 대한 유기물, 활성탄소 및 마그네슘의 효과

최병주,심재성,밝훈,Choi, Byung-Ju,Shim, Jai-Sung,Park, Hoon 한국잔디학회 1994 한국잔디학회지 Vol.8 No.3

Effect pf rape seed oil cake compast (OM) active carbon(C) compound fertilizer (NPK) and magnesium sulfate (Mg) application on Zoysia koreana growth by lysimeter of 50cm soil column filled with a low fertility loam. Effect on growth was in order of OM>OM . NPK interaction> NPK . active carbon and Mg were not effective OM . NPK interaction effect was negative on leaf width and root dry matter yield. OM and OM . NPK interaction were most effective on rhizome growth. Their effect did not change the ratio of growth rates between aerial part and rhizome but change that between aerial part and root. Leaf width was most sensitive to the treatments.