중부지방에서 월동 1년생 두과 녹비작물인 헤어리벳치를 이용한 유기재배를 확대하는데 필요한 기초 자료를 얻기 위하여 헤어리벳치-옥수수 작부체계의 후작물로서 가을무를 헤어리벳치와 혼파시기를 달리하여 생육을 조사한 결과는 다음과 같았다. 1. 혼파시기가 빠를수록 섭식성 해충에 의한 무의 생육저해가 증대하였다. 2. 혼파시기가 빠를수록 여름형 잡초의 종류와 생육량이 증대하였다. 3. 헤어리벳치는 8월 중순 이후의 파종시기가 빠를수록 월동 전 생육량이 증대하였다. 4. 가을무도 8월 중순 이후의 파종시기가 빠를수록 생육량 및 최종 수량이 증대하였다. 따라서 헤어리벳치와 가을무를 혼파 할 경우 혼파 시기는 관행의 파종적기인 8월 중순이 적절할 것으로 판단되었다.

This experiment was conducted to study the spring productivity and feeding value of hairy vetch varieties. We also measured DM yield and feeding value by analyze CP and CF that authors made possible to calculate TDN and RFV. The results can be summarized as follows; Dry matter yield were increased earlier autumn seeding date and later cut in spring. Differences of dry matter yield in earlier cut in spring was high in order of Ostsaat, Welta, Vv4712, Penn-02, Common and Minnie. Crude protein(CP) yield was increased when earlier autumn seeding date and later cut in spring. Total digestible nutrient(TDN) yield of hairy vetch varieties was decreased when later autumn seeding date, and was increased when later cut in spring. TDN yield was highest in Ostsaat and Welta varieties had highest dry matter yield. Acid detergent fiber(ADF) content was decreased when later autumn seeding date and was increased when later cut in spring. Neutral detergent fiber (NDF) content was decreased when later autumn seeding date. Average values for relative feed value(RFV) were 157% and 132% in both cut. It shows that a high feed value in all of hairy vetch varieties. Above all, the results presented that the optimal seeding date for cultivating hairy vetch in the central region of Korea is between the 10th to the 20th of September. Because Ostsaat and Welta had significantly high dry matter yield we expected Ostsaat and Welta have a higher wintering ability.

Demand for the domestic hairy vetch seed production will be increased with the increasing interest of environment-friendly agriculture in Korea. This study was conducted during from 2000 fall to 2003 spring at upland field of National Institute of Crop Science in Suwon, Korea to compare wheat and triticale (TC) as stake crop of hairy vetch (HV), and to know proper seeding rates and ratios between TC and HV for the maximum HV seed production. As supporting crop of HV, TC was superior to wheat at the points of higher HV seed yield, stronger TC stalk for supporting, consistence of ripening stage of two seeds. In seeding method, row seeding was superior to broadcast seeding at the points of less lodging and higher HV seed yield. HV seed yield decreased with the increase of TC seeding rate in mixture cropping (row seeding), particularly at TC seeding rates over 5kg/10a. HV seed yield increased with the increase of HV seeding rate at the condition of TC seeding rates under 5kg/10a in spite of higher lodging of mixed crops at higher HV seeding rate due to higher HV aboveground dry matter. Maximum HV seed yield was obtained at TC seeding rate of 1~~1.5kg/10a as indicating HV seed yield 176kg/l0a (CV. Madison) at seeding rate of TC 1kg/10a + HV 2 kg/10a in 2001, and HV seed yield 96kg/10a (CV. Common) at seeding rate of TC 1.5kg/10a + HV 4.5kg/10a in 2003. Use of all-purpose combine harvester for harvesting and appliance for separation of mixed seeds using centrifugal force, which are prerequisite for HV seed production, was excellent in the simultaneous seeds production system of HV and TC.

Winter hairy vetch (HV) can be used as green manure with conventional tillage system (CT), in which chemical N fertilizer required for cultivation of sub-sequent com could be fully saved, or as cover crop with no-tillage system (NT) in which soil could be protected from erosion, control of weed, and the reduction of N fertilizer application. This experiment was carried out to compare the enrichment of soil mineral nitrogen (SMN) at corn root zone, and the changes of com growth and N uptake according to HV amounts (winter fallow, above-ground HV removed, intact HV, and HV added from aboveground HV removed) under two tillage systems in the upland field of National Crop Experiment Station, Suwon, Korea in 1996. HV cultivation during winter decreased SMN a little at com planting. HV incorporation with CT increased SMN rapidly during early growth stage according to rapid decomposition of Hv. SMN by HV cover with NT was increased slowly and its increase was higher in the surface soil (soil layer 0-7.5cm) compared to deep soil layer 7.5-22cm. Com growth and N status at corn silking stage, com yield and N uptake at harvest were increased in proportion to aboveground HV amounts regardless of tillage system. Average hairy vetch nitrogen (HV-N) uptake efficiency by com was 10% higher with CT than with NT in which average HV-N uptake efficiency was 43 %. Corn yields were not different between two tillage systems, but corn N uptake was increased by 33 kgN/ha more with CT than with NT due to the increase of corn N concentration. The increase of SMN and com N uptake from HV cover with NT could not be disregarded though those with CT were higher than with NT

약용작물(藥用作物)중 재배 면적이 많고 소득성(所得性)이 높은 다년생(多年生)의 초본성 작물인 황기의 1~2년생근(年生根) 재배시 헤어리베치 녹비와 액상분뇨 시용이 황기의 생육특주(生育特注) 및 생산성(生産性)과 토양(土壤) 특성에 미치는 영향을 검토한 시험결과를 요약하면 아래와 같다. 1. 지상부 생육 중 경장(莖長)과 분지수(分枝數)는 헤어리베치 녹비, 액상분뇨 시용구에서 생장량이 컸으며, 생육이 늦게까지 지속되었다. 근장(根長), 근경(根徑), 지근수(支根數) 모두 헤어리베치 녹비와 액상분뇨 시용구에서 증가하는 경향이었으며 건물비율(乾物比率) 재배 1년차 보다 재배 2년차에 증가하였다. 2. 재배 2년차의 건근수양(乾根收量)은 녹비를 피복한 무비구, 화학비료, 액상분뇨 시용구에서 각각 196, 240, 255kg/10a으로서 녹비를 피복하지 않는 무비구, 화학비료, 액상분뇨 시용구에서는 각각 115, 225, 232 kg/10a 보다 증수되었다. 황기 재배시 헤어리베치 녹비 피복은 질소공급에 의한 수량증가와 잡초억제 효과를 나타내었다. 3.뿌리의 질소함양(窒素含量)은 재배 1년차에 1.33~2.56%, 재배 2년차에 1.9~2.95%으로 재배 년차가 높을수록 증가(增加)되었다. 질소함량을 조단백질 함량으로 환산하면 재배 2년차에 20~23%로서 콩 단백질 함량의 45~65% 수준이었다. 4. 시험 후 토양의 총 질소함량은 녹비 액상분뇨 시용구에서 유의성 있게 증가하였으나 토양 내 염류집적(鹽類集積)은 되지 않았다.

Decomposition of green manure is necessary for the nutrient supply in farm soil. Hairy vetch as a green manure is superior to other winter legumes in terms of wintering ability and N accumulation. This experiment was carried out to investigate the decomposition and N release of hairy vetch and its effect on rice production as the following crop in paddy field. Decomposition of hairy vetch placed by soil depth of 0, 10 and 20cm at transplanting time was investigated by mesh bag method, which was enclosed chopped residue in mesh bags. The fate of 15 N derived from 15 N-labeled hairy vetch was investigated at harvest in three levels of N fertilization. Grain yield of the transplanted paddy rice cultured with hairy vetch as starter N were compared with that of applying urea as starter N in the field. Hairy vetch residue decomposed very rapidly both in transplanted and dry-seeded paddy field. In transplanted paddy field, hairy vetch residue lost 72-81 % and 86-90% of its weight after one and five month, respectively, as affected by incorporation depth. The C/N ratio of the decomposing vetch residue increased sharply during the early stages and after then, decreased slowly. The amounts of N and P released from the vetch were about 90% and 97% of initial content after one month, respectively. Recoveries of hairy vetch-15 N by rice plant were 30.6, 34.6 and 35.7% in 0, 6 and 12 kg urea-N 10 a-l application, respectively, indicating that N fertilization increased the recovery of hairy vetch. 15 N. Hairy vetch residue incorporated as starter maintained significant N H4 + -N concentration in soil water of plow layer until effective tillering stage. Grain yield in the plot applied with hairy vetch was not significantly different from that in the plot with urea. We concluded that hairy vetch incorporation could substitute starter N fertilization and showed possibility to reduce N amount of top-dressing.g.g.

추파연맥-옥수수 이모작 작부체계에서 헤어리벳치 녹비 이용의 가능성 및 그 효과를 검정하기 위해 1999년 및 2000년의 2년간 작물시험장 발포장에서 옥수수 수확 후 9월 초순 연맥과 헤어리벳치를 혼파하여 11월 초순 일차적으로 사초를 수확하고 난 후 월동한 벳치를 옥수수의 녹비로 이용하였을 때의 효과를 조사하였는데 다음과 같은 결과를 얻었다. 옥수수 단작에서 벳치단파에 따른 옥수수에 대한 2년 평균 벳치녹비량 6.7cm/ha의 효과는 연맥이모작의 옥수수 질소표준비와 거의 동일하였다. 연맥과 혼파시의 벳치의 녹비 및 녹비질소량은 벳치 단파시의 40%에 불과하여 옥수수 6엽기에 조사한 토양질산태 질소량도 벳치-녹비구 및 연맥-표준질소구보다 반 이하로 감소하였고 식물체 질소함량이 많이 감소하여 출사기 옥수수 질소흡수량이 40-50kg/ha 감소하였다. 그러나 옥수수 6엽기에서의 토양질산태 질소가 무질소비료구의 2배 정도였으며 시험 2년차에는 추비질소가 필요없이 토양 질산태 질소수준인 25mg/kg에 거의 접근하였으며, 출사기에서의 옥수수 질소흡수량이 무질소비료구보다 약 30-40kg/ha 증가하였다. 시험 1년차 연맥+베치-녹비구의 옥수수 전건물중은 벳치-녹비구 및 연맥-표준질소구보다 종실중이 다소 감소하여 약 2 ton/ha 정도의 수량 감소가 있었지만 시험 2년차는 동일하였다. 옥수수 1년차에 약 60kg/ha, 2년차에 20kg/ha 감소하였으며, 연맥-무질소구에 비해서는 1년차 30kg/ha, 2년차 45kg/ha 정도 증가하여 질소화학비료 50-100kg/ha 대체효과를 얻을 수 있었으며, 뚜렷한 녹비의 2년 누적효과를 볼 수 있었다. 따라서 옥수수의 단작시의 헤어리벳치녹비보다는 효과가 적지만 연맥 이모작시에도 연맥과의 혼파에 의한 헤어리벳치의 녹비 및 질소비료 절감효과도 충분히 크며 녹비의 누적효과도 기대할 수 있을 것으로 판단되었다.olice billeting area, sports area, and rear rest area. The entrance space, Podori plaza, and symbolic court on the south-west part of the site represent the publicity of the site as the concept of "open space." On the contrary, considering the specialty of police affairs, the north-east part of the site, which contains the police billeting area and rest area, were designed to maintain security by using the concept of "closed space." To express an identity of the KPA, ′Podori′, a police mascot, the plaza was designed and is suppose to function as the hub of the community. In the front section of the plaza, a symmetrical planting pattern, centering the strong axis, was introduced to strengthen its symbolic meaning. Traditional window frames such as the pattern of ′Pisal-jige′and ′′Umulsal-jige′ were used for the paving system which is applied as the environment friendly design. Site facilities and furnitrue were placed at every i

Hairy vetch (Vicia villosa Roth) winter annual is very effective on reducing chemical nitrogen fertilizer for subsequent com by fixed organic green manure nitrogen fixed during hairy vetch growth. In this experiment, hairy vetch produced above-ground dry matter of 5 ton/ha, nitrogen yield 200 kgN/ha, at com planting on the average during 1997 and 1998. Changes in com yield and nitrogen uptake for two years were investigated after application of nitrogen fertilizer 0, 60, 120, 180, 240 kgN/ha on plot of winter fallow and hairy vetch green manure, respectively. Nitrogen status such as ear-leaf N%, SPAD value at silk and dough stage, and com yield decreased in proportion to reduction of nitrogen fertilizer at winter fallow, but nitrogen status and yield of com were not different among nitrogen fertilizer rate at hairy vetch green manure. Com yield (total dry matter) at 0 kgN/ha plot of hairy vetch was 22, 20 ton/ha in 1997, 1998, respectively and com could produce more dry matter 9, 13 ton/ha by hairy vetch green manure compared with winter fallow under the condition of no nitrogen fertilizer in 1997, 1998, respectively. Com yield (total dry matter) at 60kgN/ha of hairy vetch green manure was higher than that of high N fertilizer rate such as 180, 240 kgN/ha of winter fallow. Nitrogen uptake of com at plot of hairy vetch-no nitrogen fertilizer slightly decreased than at plot of hairy vetch - nitrogen fertilizer, but com absorbed more nitrogen of 141, 159 kgN/ha by hairy vetch green manure compared with winter fallow under no nitrogen fertilizer condition in 1997, 1998, respectively. Nitrogen fertilizer reduction for com by hairy vetch green manure was 149, 161kgN/ha in 1997, 1998, respectively. Still more, com could absorb more soil nitrogen by nitrogen fertilizer 60kgN/ha of hairy vetch green manure than by high nitrogen fertilizer such as 180, 240 kgN/ha at winter fallow. It is concluded that nitrogen fertilizer for corn could be reduced by winter cultivation and soil incorporation of hairy vetch at com planting.

헤어리베치의 추계 파종시기별 이듬해 4월 하순의 녹비량 및 녹비질소량의 변화를 살펴보기 위하여 첫째 1996년 및 1997전 파종기 9월 10일, 10월 1일 및 10월 20일에 각각 파종량 10, 20, 30 및 40kg/ha의 처리를 두어 이듬해 1997년 및 1998년의 5월 1일에 각각 수확하였고, 둘째 1999년의 8월 20일부터 9월 30일까지 10일 간격으로 5회에 걸쳐 파종하고 이듬해 4월 22일, 4월 27일, 5월 2일의 3회에 걸쳐 수확하여 조사한 결과는 다음과 같다. 1997년 및 1998년 5월 1일 수확시 헤어리베치의 질소함량은 4% 내외, 2000년 수확시는 3.5% 내외를 나타내었는데 파종이 빠를수록 수확시 질소함량이 다소 감소하였다. 헤어리베치의 파종량이 증가할수록 녹비의 수량은 증가하였으나 2년 모두 파종량 30 kg/ha와 40 kg/ha간에 차이가 없어 적정 파종량은 30 kg/ha로 생각되었다. 적정 파종량에서 녹비건물중 이 9월 10일 파종은 5.5-7 ton/ha, 10월 1일 파종은 4-4.5ton/ha, 順월 20일 파종은 1.3-2.2 ton/ha로 파종시기가 늦을수록 감소하였는데, 특히 파종기 10월 이후에서 현저히 감소하였다. 녹비의 질소량은 녹비건물중과 거의 비례하였는데 지상부에 포함된 질소량(파종량 30-40 kg/ha)은 9월 10, 10월 1일 및 10월 20일 파종이 각각 220-280, 160-180, 60-100 kg/ha로 파종기의 지연에 따라 뚜렷이 감소하였다. 2000년의 4월 하순 수확에서는 8월 20일, 8월 31일, 9월 10일과 9월 20일 및 9월 30일 파종이 각각 7-8, 6-7, 4-5 및 2-3 ton/ha의 녹비건물중을 나타내어 파종이 8월 하순이 9월에 비해 현저히 증가하였다. 녹비질소량 역시 8월 20일, 8월 31일, 9월 10일과 9월 20일 및 9월 30일 파종이 각각 240-290, 200-260, 150-220 및 70-120 kg/ha 나타내어 8월 하순 파종이 9월 파종에 비해 증가하였다.

Winter green manure crops including legume increase grain yield of subsequent crop and substitute N fertilizer requirement with organic-No Hairy vetch grows vigorously and can provide N-rich green manure for corn with its soil incorporation after wintering. But, grain yield of corn as succeeding crop would be reduced if its planting time is delayed until late spring. This experiment was carried out to find the proper incorporation time of hairy vetch green manure and planting time of subsequent corn in cropping system with winter hairy vetch(green manure)-summer corn. Hairy vetch was incorporated into soil at a ten-day interval between April 10 and May 10 and corn was planted at 5 days after each hairy vetch incorporation. Soil nitrate concentration on April 10 and 20 in hairy vetch plot was slightly lower than that at winter fallow. Above-ground dry matter and organic-N of hairy vetch increased linearly with delayed hairy vetch incorporation time from April 10 to May 10. Average dry matter and organic-N produced by hairy vetch were 5.7 ton/ha and 248 kgN/ha, respectively. Corn growth and yield decreased as delayed corn planting time after May in spite of increasing dry matter and N-yield of hairy vetch. Nitrogen concentration of corn grain, stalk and whole plant at harvest were the highest in May 5 planting, but total N-uptake of May 5 planting were not different from that of April 25 planting because of lower grain yield. It was concluded that the proper incorporation time of hairy vetch and corn planting time were April 20 and April 25, respectively, because grain yield was the highest and corn could use hairy vetch-N effectively to produce dry matter.