• 한국지역사회생활과학회지
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• 제19권4호
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• pp.659-672
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• 2008

There is a need to develop diverse cultivation species with reference to the favorites and farming experiences of allotment garden participants, in addition to the crops being cultivated in the gardens. In this study, therefore, a survey on the status of cultivation and the demand for herb crops for the garden participants was conducted. Current trend of the programmes related to allotment garden for city dwellers, executed by various relevant organizations was analyzed. A questionnaire was accomplished by adult participants experiencing farming in allotments. Likewise, interview with farm proprietors was conducted. The results showed that the number of crop species cultivated in allotments was about ten species. The purchase of seeds and nursery plants was mainly dependent on the farmland proprietors. The selection of the crops was made by both wife and husband. The status of herb utilization indicated that 5.7% of participants were cultivating or had cultivated herb plants. Sixty-two percent of participants were not cultivating herb plants because they did not know how. The purposes of using herbs were for medicine and beauty (22.0%), for spices (22.0%) and for enjoyment (29.0%). Thirty-four percent (34.0%) of participants were interested or would like to use the herbs in the future for medicine and beauty, 39.0% for spices and 31.7% for enjoyment. It is expected that the demand for herbs would increase. Also, 78.3% of participants had the intension or had taken into consideration to cultivate the herb plants, if the farmland proprietors would provide the plants. And, they had interest in planting, management and post harvest utilization and if a reference material would be provided as well. An approach to plant new crops might be possible to those who have more than four years of farming experience and possess relatively high level of cultivation techniques. In conclusion, the favorable crop cultivation strategy corresponding to the participants' abilities; and rental process were essential for the sustainable operation of allotment gardens and expanded number of participants. Moreover, there is a need to pay attention to the city dwellers who have a lot of farming experiences in allotment gardens to maintain agriculture and rural community. This is so, because they are interested in agriculture and rural community and most of them replied that they had intentions to move to rural areas in the future.

• 한국작물학회지
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• 제32권1호
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• pp.1-4
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• 1987

인도네시아 발리에서 한국 4개품종을 묘대일수와 재배법을 달러하여 공식한 결과 20일묘와 30일묘간에는 이앙후 출수기까지의 일수, 생육과 수양형질 및 수량에서 차이가 없었으며 시비량이 많고 재식밀도가 낮은 한국재배법이 수량 및 수량 구성요소가 유의성 있는 좋은 성적을 보였다.

• 한국식물병리학회지
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• 제10권2호
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• pp.112-118
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• 1994

Forth microbial isolates out of 167 isolates from the soil of controlled cultivation areas inhibited mycelial growth of Rhizoctonia solani AG2-1 causing the strawberry bud rot in vitro. Among the isolates, Kr013 and Kr020 showed suppressive effect to R. solani AG2-1 on seedlings of chinese cabbage treated by root immersion, charcoal carrier granule and drenching on 1.0% infested soil in pot. Furthemore, the corresponding effect was also revealed when the charcoal carrier granule of the isolates were treated on the seedling of strawberry that were planted on the planting hole in pot. To examine the effects of biological control in green house, it had been tested the infection rates by using two different treatments. First, the strawberry runner were planted on the nursery soil mixed with 20% charcoal carrier granule of Kr013 and Kr020 isolate respectively, and grown for 20 days before transplanting. Then the young plants form the mother plant were separated and transplanted on the 1.0% infested soil. Another method was that the charcoal carrier of Kr013 and Kr020 isolates applied to planting hole of 1.0% infested soil just before transplanting. Then the young plants were grown for 20 days on the sterilized nursery soil before transplanting. From the results, the effects of biological control was significantly higher on former treatment (e.g. the infection rates were 7.3 and 5.7%, respectively) than on the latter treatment (e.g. the corresponding value were 16.7 and 15.7%, respectively). The antagonistic isolates of Kr013 and Kr020 were respectively identified as Pseudomonas cepacia with the similarity of 55.0% and 60.0% by using the Biolog GN Microplate system.

• 한국작물학회지
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• 제55권1호
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• pp.24-30
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• 2010

단옥수수로부터 찰옥수수로 변한 소비자들의 기호성과 홍수출하를 피하고 생산자의 소득을 높이기 위한 주년공급에 대응하기 위해서 조생종과 만생종 찰옥수수의 육묘와 이식재배에 관한 체계적인 연구가 필요한 현실이다. 본 연구는 2007년에 국립식량과학원 시험포장에서 찰옥수수의 조생종 품종 찰옥 1호와 만생종 품종 찰옥 4호를 재료로 하여 풋옥수수의 안정성 높은 이식재배법에 대한 일련의 실험을 수행한 것으로 그 결과를 요약하면 다음과 같다. 1. 육묘기간이 길어질수록 파종 후의 출사일수가 길어지는 반면, 이식후의 출사일수는 짧았는데, 출사일수는 찰옥 1호가 찰옥 4호에 비하여 9~12일, 그리고 2기작이 1기작에 비하여 12~15일 정도 짧았다. 2. 육묘 이식재배한 찰옥수수의 간장은 육묘일수가 길수록 감소하는 경향이었으며, 직파재배에서 간장은 2기작재배에서 1기작재배에 비하여 찰옥 1호는 17%, 그리고 찰옥 4호는 24% 감소하였다. 3. 이삭길이는 육묘일수가 길어질수록 다소 감소하였는데, 찰옥 1호는 1기작재배에 비하여 2기작재배에서 크게 감소하였다. 4. 상품 이삭수는 직파재배에서 2기작재배가 1기작재배에 비하여 찰옥 1호는 64% 감수하였고, 찰옥 4호는 12%로 감소하여 그 정도가 적었다. 5. 상품 이삭수로 보아 찰옥수수의 적정육묘일수는 찰옥1호는 1기작재배 15일 육묘, 2기작재배는 이식재배 보다 직파재배가 적당하고, 찰옥4호는 모든 작기에서 20일 육묘로 판단되었다.

• 생물환경조절학회지
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• 제18권1호
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• pp.51-59
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• 2009

양파의 재배 지역 확대 및 재포 기간을 단축하고자 동절기 플러그 육묘를 통한 춘파재배를 위한 품종별 생육 특성과 수량, 저장성을 검토하였다. 중부지방의 평지에서 양파를 춘파재배한 결과 품종별로 육묘시의 생육차이가 수확시의 생육이나 수량에는 큰 영향을 미치지 못하였다. 수량은 도복시기가 관련 있어 구비대가 6월 말 정도로 다소 늦게 이루어지는 경우가 충분한 구비대로 수량이 증가하는 경향을 보였다. 품종에 따른 도복시기는 '천주대고(Cheonjudaego)' 등의 품종들은 6월 말이 지나도 도복이 이루어지지 않아 중부지방 평지에서 춘파 양파 재배 시 도복시기에 따른 품종선택에 대한 고려가 필요하다. 구중은 '센슈추쿠키(Senshuchukooki)', '아톰(Atom)', '하이볼EX(Hiball EX)'등이 컸으나 '와세소닉(Wase sonic)' 같은 품종과는 차이가 컸다. 그러나 수량은 구중 이외에 상품성에 의해서 수량이 결정되어, 비교적 구중이 무겁고 상품성이 좋았던 '아톰(Atom)', '에이스(Ace)', '럭키(Lucky)', 'OP' 등이 경우가 전체적인 상품수량에서 좋은 경향을 나타내었다. 춘파재배한 양파를 3개월간 처장한 경우 상품률이 '에이스(Ace)'의 93%에서 '와세 소닉(Wase sonic)'의 13%까지 품종에 따른 차이가 컸는데, 도복시기가 빠른 품종들이 저장성이 낮게 나타나는 경향을 보였다. 이러한 결과로 볼 때, 양파 평지 춘파재배를 할 경우 도복이 빠른 품종을 피해서 재배하는 것이 유리하나 계절적인 특성을 고려하여 도복이 너무 늦게 되는 품종도 피해야 할 것으로 생각된다. 일반적으로 생산되는 대부분의 양파는 바로 창고에 입고하여 저장되어 이용되나, 평지의 춘파 양과는 재배목적을 뚜렷이 하여 수확과 동시에 이용하는 것이 바람직할 것으로 생각한다.

• 식물병연구
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• 제12권3호
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• pp.272-277
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• 2006

수경재배지 폐양액 내 Phytophthora spp.는 일차적인 전염원이며 배양액 재사용 시 전염이 더욱 확산될 수 있다. 오존은 농업용수 및 지하수 살균을 위해 산업적으로 이용하여 왔으나 수경 재배지에서 폐양액 살균 후 재활용 목적으로 충분한 연구는 수행되지 못하였다. 본 연구에서는 폐양액 내 존재하는 4종의 Phytophthora spp.에 대하여 살균 목적으로 오존 처리 시간을 $1{\sim}9$분까지 구분하여 처리하였다. 폐양액 내 오존 7분 이상(농도 1.4 mg/l) 처리에서는 처리 시간에 관계없이 시험균주 4종 모두에서 매우 높은 살균력을 나타낸 반면 5분(농도 1.2mg/l) 이하의 저농도 처리는 충분한 살균력을 나타내지 못하였다. 한편, 7분 이상 고농도($1.4{\sim}1.7mg/l$)로 살균 처리된 폐양액을 P. nicotianae가 생장중인 배양접시에 처리한 결과 일부 배지 속 깊게 생장중인 균사체까지 살균력이 미치지 못하였다. 따라서, 본 연구 결과 완전한 폐양액 살균을 위해서는 오존 살균과 더불어 균사체 덩어리 또는 이병 잔재물을 제거할 수 있는 필터 방식과의 병행이 바람직하다.

• 한국약용작물학회지
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• 제26권3호
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• pp.205-213
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• 2018

Background: Since the revised Ginseng Industrial Act was passed, ginseng sprouts have become a new medicinal vegetable for which there is high consumer demand. However, the existing amount of research and data on ginseng production has not kept pace with this changed reality. Methods and Results: In this study we analyzed the changes in the amounts of ginsenosides in different parts of growing ginseng sprouts during the period from when organic seedlings were planted in nursery soil until 8 weeks of cultivation had elapsed, which was when the leaves hardened. In the leaves, ginsenoside content increased 1.62 times with the panaxadiol (PD) system and 1.31 - 1.56 times with the panaxatriol (PT) system from 7 to 56 days after transplantation. During the same period, the total ginsenoside content of the stems decreased by 0.66 - 0.91 times, and those of the roots increased until the $21^{st}$ day, and then underwent steep declines. The effect of fermented press cake extract (FPCE) and tap water (TP) on the total amount of ginsenoside per plant were similar, and could be represented with the equations $y=1.4330+0.2262x-0.0008x^2$ and $y=0.9555+0.2997x-0.0031x^2$ in which y = ginsenoside content x = amount of and on the total amounts of FPCE or TP, respectively after 26.4 days, however, the difference between ginsenoside content with FPCE and TP widened. Conclusions: These results suggested that the amounts of ginsenosides in different parts of ginseng varied with the cultivation period and nutrient supply. These findings also provide fundamental data on the distribution of ginsenosides among plant parts for 2-year-old ginseng plants in the early-growth stage.

• 한국작물학회지
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• 제27권4호
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• pp.439-451
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• 1982

In fact, rice cultivation technique from 1962 to 1970 was very slight, but this technique from 1970 to now was remarkably developed in Korea, it was due to development of high fretilizer responsive and lodging resistant variety, Tongil; ie. Ind. ${\times}$ Japonica remote-cross rice variety. The main factors of this development is as follow: Firstly the most farmer (more than 90%) used newly developed seedling growth method; polyethylene film covered protected nursery bed. Secondly date of transplanting (middle or late part. of May) was earlier 10-15days than before 1970. Thirdly new varieties were highly lodging resistant at high fertilizer level $(N-P_2O_5-K_2O:15-9-11 kg/l0a)$. However, this level is 50% increased one than it for Japonica varieties. At forth planting density increased up to 75-80 hills per $3.3m^2$. Added to these factors, farm labor shortage and wage increase due to economic development gave a chance for introduction of transplanting machine to farmer in 1977. It's use increased for 100, 800 ha in 1981. The most of farmers are using herbicides and weed control system dependoing on wood composition has been established and disseminated to farmer.

• 한국수산과학회지
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• 제42권5호
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• pp.523-526
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• 2009

Biodegradable polybutylene succinate (BPS) multifilament were designed to degrade upon disposal by the action of afforestration of Ecklonia cava. Matured thalli of E. cava were collected at Jeju for zoospore collection and the substrate for zoospores were BPS multifilament (12 mm, 500 Td/96). The materials were made as nets of $1\;m^2$ with a cross stripes of 10 cm. The unit biodegradable nets bearing germlings of E. cava was moved into Wando where the place is conducting intensive seaweed cultivation in Korea for 5 months of nursery culture until they grew to 10 cm in length after which the nets were transplanted into the sea bed at Jeju at a depth of 12 m and the algal growth was monitored from May 2007 to December 2008. This is the first instance of using the BPS materials for seaweed afforestation to avoid any environmental problems.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.49-49
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• 2017

Sugar palm (Arenga pinnata (Wurmb.) Merr.) grows naturally under shading of tree canopy, therefore shading levels take a main role for an optimal growth of sugar palm seedlings. The study was conducted to examine the effect of shading levels on the seedlings growth of sugar palm for up to 11 months under four shading levels: S0 (100% of full sunlight or non-shading), S1 (32% shading level), S2 (56% shading level), and S3 (64% shading level). Sugar palm seedlings grown under the shade (32, 56, and 64%) showed better plant height, stem diameter, leaf size, petiole and rachis length, chlorophyll content, root fresh and dry weights, root volume, and total biomass than those grown without shading. Although there were no significant different responses among the shading treatments on plant height, biomass dry weight, leaf morphological characters, chlorophyll content, and SPAD value, the S2 treatment showed a significant effect on a better root characters. Therefore, it can be concluded that the S2 treatment, 56% shading level, is an optimal shading condition for sugar palm seedlings.