• 제목/요약/키워드: field crops

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주요(主要) 논·밭 작물(作物)에 대한 농가시비(農家施肥) 실태(實態) (Status of Farmers' Application Rates of Chemical Fertilizer and Farm Manure for Major Crops)

  • 박백균;전태하;김유학;호교순
    • 한국토양비료학회지
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    • 제27권3호
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    • pp.238-246
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    • 1994
  • 23개 작물(作物) 13,259점(點)에 대한 농가(農家) 시비량(施肥量)을 조사(調査)한 결과(結果) 1. 농가시비량은 시비기준량에 비해 일반작물(一般作物)의 경우 평균적(平均的)으로 질소(窒素) 38%, 인산 7% 정도 과비(過肥)되었으나 채소작물(菜蔬作物)에 대해서는 질소(窒素) 40%, 인산(燐酸) 138%, 가리(加里)는 53% 과비(過肥) 경향(傾向)이었음. 2. 주요작물(主要作物)에 대한 시비량(施肥量) 차이(差異)를 도별로 나누어 보면 벼에 대한 시비량은 비교적 타지역(他地域)보다 단수(段收)가 높은 충남(忠南)과 전북지성(全北地城)이 다른 지역보다 40~50% 많았으며, 밭 작물(作物)의 콩과 참깨의 경우는 지역간(地域間)에 큰 차이(差異)가 없었음. 고추는 강원(江原), 전남북(全南北), 경남북(慶南北)에서 많았고, 배추는 강원(江原)과 충남지역(忠南地域)에서 많았음. 3. 주산지(主産地)의 시비경향(施肥傾向)을 비주산지와 비교하여 보면 대체로 주산지(主産地)의 시비량(施肥量)이 일반작물보다 채소작물(菜蔬作物)에서 많은 것으로 나타났음. 4. 재배작형(栽培作形)으로 볼때 재배환경(栽培環境)이 좋아 생산량이 노지(露地)보다 많은 시설재배(施設栽培)에서 질소(窒素) 5.9kg/10a(21%), 인산(燐酸) 8.7kg/10a(52%), 가리(加里) 7.1kg/10a(34%)가 더 시비되는 경향이었는데, 대체로 옥수수, 고추, 토마토, 상추에 대한 화학비료 시용량은 시설재배(施設栽培)에서, 오이, 딸기, 무, 배추의 경우는 노지(露地)에서 많았음. 5. 유기질(有機質) 비료(肥料)는 일반작물(一般作物)의 경우 대체로 60%이하의 농가(農家)에서, 채소작물(菜蔬作物)에는 69~100%의 농가(農家)에서 시용(施用)되었고 채소작물의 시용량(施用量)이 더 많은 경향(傾向)이었으며, 주산지(主産地)와 비정산지(非定産地)로 나누어 볼때 일반작물(一般作物)에 대한 시용량은 비주산지(非主産地)가 재료(材料)가 충분(充分)하여 더 많이 주는 경향이나 채소작물(菜蔬作物)는 주산지나 비주산지 큰 차이(差異) 없이 필수적(必須的)으로 사용하는 것으로 나타났음. 6. 작물별(作物別)로 많이 사용(使用)하는 복합비료(複合肥料)는 고농도의 수도용 복합비료 이었음. 특히 수도용복합 비료는 전용복합비료가 있건 없건간에 벼(1모작)와 맥주보리, 콩, 참깨를 제외(除外)한 모든 작물(作物)에서 가장 많이 사용되었음.

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국내 주요 약용작물에 발생하는 총채벌레의 종류와 피해 (Thrips in Medicinal Crops in Korea:Identification and Their Damages)

  • 강택준;안승준;안태진;조명래;전흥용;정재아
    • 한국약용작물학회지
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    • 제20권6호
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    • pp.487-492
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    • 2012
  • Damages of medicinal crops by thrips and identification of thrips species were investigated by periodic surveys on major medicinal crops, Platycodon grandiflorum, Schizandra chinensis, Codonopsis lanceolata, Lycium chinense, Bupleurum falcatum, Ledebouriella seseloides, Angelica gigas, Glycyrrhiza uralensis, Liriope platyphylla, Atractyloides sp., once or twice a month in Suwon, Eumseong, Jecheon, Pyeongchang, Chyungyang from May to October in 2012. Thrips and their damages were found at all of the medicinal crops investigated, mostly occurring at early growing stages of each medicinal crop and causing apical meristem region withered, thereby inhibiting the growth of plants. For species identification of thrips collected from each medicinal crops, DNA from each individual was extracted and ITS2 and COI regions were amplified by PCR. As a result, Frankliniella intonsa, Thrips tabaci, and Megalurothrips distalis have been identified as dominant species on medicinal crops in open field, whereas Frankliniella occidentalis was restricted to Lycium chinense in which protected cultivation. This study suggests that the occurrence of thrips species on medicinal crops seems to be affected by host specificity and environmental factors such as cultivation types.

논에서 여름 및 겨울 사료작물의 최적 작부체계에 관한 연구 (Study on the Promising Double Cropping System of Summer and Winter Forage Crop in Paddy Field)

  • 김원호;신재순;임영철;서성;김기용;이종경
    • 한국초지조사료학회지
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    • 제25권4호
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    • pp.233-238
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    • 2005
  • 본 연구는 여름 사료작물(옥수수, 수수$\times$ 수단그라스 교잡종, 사료용 피, 율무, 밭벼)와 겨울 사료작물(호밀, 총체보리, 이탈리안 라이그라스)을 농촌진흥청 축산연구소 답리작 논에서 생육특성, 사료가치 그리고 건물생산성을 고려하여 최적 작부체계를 구명하기 위한 시험을 2002년부터 2004년까지 수행하였다. 여름 사료작물에 있어 도복에 강한 작물은 다른 초종에 비교해서 사일리지용 옥수수, 율무 그리고 밭벼가 강했으며, 겨울 사료작물 중에서는 호밀과 이탈리안 라이그라스보다 총체보리에서 강했다. 여름 사료작물과 겨울 사료작물을 15개 작부조합 하였을 때 총체보리+수수$\times$ 수단그라스 교잡종, 호밀+수수$\times$ 수단그라스 교잡종 그리고 이탈리안 라이그라스+수수$\times$ 수단그라스 교잡종의 작부조합에서 ha당 각각 27,766 kg, 27,296kg 그리고 25,365kg으로 건물생산성이 높았으며, 그 외에 총체보리+사일리지용 옥수수와 호밀+사일리지 옥수수에서 각각 ha당 23,766kg과 23,572 kg으로 양호하였다.

Comparison of Bioavailability and Biological Transfer Factor of Arsenic in Agricultural Soils with Different Crops

  • Oh, Se Jin;Kim, Sung Chul;Ok, Yong Sik;Oh, Seung Min;Ji, Won Hyun;Yang, Jae E.
    • 한국토양비료학회지
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    • 제47권6호
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    • pp.518-524
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    • 2014
  • Heavy metal pollution in agricultural field near at the abandoned metal mines has been a critical issue in Korea. In particular, bioaccumulation in plants can have detrimental effect on human health. Main objective of this research was to examine arsenic (As) concentration in soil with varied extraction methods and to determine bioaccumulation and biological transfer factor in different crops. Results showed that bioaccumulation ratio of As for total contents in soil was ordered leafy and stem vegetables (1.19%) > fruit bearing vegetables (0.79%) > pulses (0.40%) > root vegetables (0.36%) with different crop species. Among 6 different extraction methods, all of extraction methods showed high correlation ($R^2=0.87-0.97$) except DTPA ($R^2=0.25$) when comparing As concentration in soil extracted with different extractants and As concentration in each crops. Calculated biological transfer factor was ranged 0.002-0.018 depending on crop species. Overall, concentration of As in crops can be varied and best management practice for minimizing bioaccumulation of As should be considered depending on crop species.

신개간지에서 구비 및 삼요소시용이 청예사료작물의 생육 및 건물축적에 미치는 영향 (effect of Cattle Compost and NPK Application on Growth and Dry Matter Accumulation of Selected Forage Crops on Neqly Reclaimed Uplands)

  • 한민수;박종선
    • 한국초지조사료학회지
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    • 제11권2호
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    • pp.108-115
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    • 1991
  • A field experiment was conducted to evaluate the effects of cattle compost application on the change of soil physical properties and their relationship to yield performance of selected main forage crops. Maize(CV. Suweon 19) and sorghum hybrids(CV. Pioneer 9'31) as a summer crops and winter rye were grown on newly reclaimed red yellow soils(Fine loamy, Typic Hapludults) under different application rate of cattle compost associated with chemical NPK fertilization, from Oct. 1986 to Sept. 1989. Experimental field was laid down as a split plots design with four replications. The results obtained are summarized as follows: 1. Cattle compost application reclaimed soil physical propeties, such as formation of granular structure and water holding capacity, and it result in a great increase of plant growth and the rate of dry matter accumulation. 2. While cattle compost treatment reduced the portion of soild phase of the three phase constituents of soils, it increased the portion of air phase and liquid phase comparatively. 3. Organic matter, N, P, K, and mineral content in soil were markedly increased in the plot treated with compost. 4. Cattle compost application increased fodder production both in maize-rye and sorghum hybrids-rye cultivation. Annual dry matter yield of maize-rye cropping was 2183(NI'K only), 2425(NPK+compvst 3000 kg) and 2800kg/lOa(NPK + compost 6000kg/10a).

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배수 약간 불량지 논에서 PVC 파이프 암거배수에 의한 사료작물 재배 (Growth and Tield Performance of Selected Forage Crops Cultivated on Imperfectly Drained Paddy Field under Subsurface Drainage by PVC Pipes)

  • 김정갑;박근제;김건엽;한민수
    • 한국초지조사료학회지
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    • 제16권3호
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    • pp.219-224
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    • 1996
  • Silage comkv, suwwn 19). sorghum $\times$ sudangrass(p. 988) and winter ryeNaton) were cultivated on imperfectly drained paddy field under two different draining methods, subsurface darinage by PVC pipes and open ditsched surface drainage. The crops were harvested at the stage of hard dough for corn and soft dough for wrghum and rye. The soil physical properties. soil colors. soil structure and soil wetness were improved in the subsurface drainage. Gravitational water table occured depth in 110 cm(dry season)~75cm(rain season). In soil profile description, yellowish brown with yellowish red mottles and well developed granular structure were found in the surface A horizon. The portion of solid phase in subsoils(B horizon) was reduced from 48.6%(undrained) to 43.7 %. A blocky structure with dark gray to gray were described in the open ditsched surface drainage. Severe wet depression of the crops was observed due to it's higher moisture contents, where the gravitational water occured depth in 25~37cm during the rainy season. The chemical properties of paddy soils were less affected by drainage methods. The concentration of available phosphate. organic matter and exchangeable K, Ca and Mg were decreased in the subsurface drained soils. The annual dry matter yields of com-rye cropping were 17.8 ton in the undrained, 21.6 ton in the open ditsch drainage and 35.9 ton/ha in the subsurface drainage.

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The cultivation of wild food and medicinal plants for improving community livelihood: The case of the Buhozi site, DR Congo

  • Karhagomba, Innocent Balagizi;Adhama, Mirindi T.;Mushagalusa, Timothee B.;Nabino, Victor B.;Koh, Kwangoh;Kim, Hee Seon
    • Nutrition Research and Practice
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    • 제7권6호
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    • pp.510-518
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    • 2013
  • This study aims to demonstrate the effect of farming technology on introducing medicinal plants (MP) and wild food plants (WFP) into a traditional agricultural system within peri-urban zones. Field investigations and semi-structured focus group interviews conducted in the Buhozi community showed that 27 health and nutrition problems dominated in the community, and could be treated with 86 domestic plant species. The selected domestic MP and WFP species were collected in the broad neighboring areas of the Buhozi site, and introduced to the experimental field of beans and maize crops in Buhozi. Among the 86 plants introduced, 37 species are confirmed as having both medicinal and nutritional properties, 47 species with medicinal, and 2 species with nutritional properties. The field is arranged in a way that living hedges made from Tithonia diversifolia provide bio-fertilizers to the plants growing along the hedges. The harvest of farming crops does not disturb the MP or WFP, and vice-versa. After harvesting the integrated plants, the community could gain about 40 times higher income, than from harvesting farming crops only. This kind of field may be used throughout the year, to provide both natural medicines and foods. It may therefore contribute to increasing small-scale crop producers' livelihood, while promoting biodiversity conservation. This model needs to be deeply documented, for further pharmaceutical and nutritional use.

논둑에서의 식물기생성선충 발생 실태 (Plant-parasitic Nematodes on the Ridge of Rice-field)

  • 박소희;제환석;박남숙;강헌일;최인수
    • 한국자원식물학회지
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    • 제35권1호
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    • pp.23-28
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    • 2022
  • 정부의 논 타작물 재배사업으로 인하여 밭으로 전환되는 논 면적이 증가하고 있다. 논둑의 식물기생성선충들의 감염 실태를 조사한 결과, 논둑에서 재배되는 작물은 콩 66%, 팥 21%, 들깨 13%였다. 논둑에서 발견된 식물기생성선충은 Helicotylenchus sp., Heterodera glycines, Meloidogyne arenaria, M. javanica, M. hapla, Paratylenchus projectus, Pratylenchus coffeae, P. neglectus, Rotylenchus incultus, Trichodorus sp. Tylenchorhynchus crassicaudatus, T. claytoni 등 총 8속 10종, 미동정 2종으로 국내 주요 식물기생성선충의 속이 거의 모두 포함되어 있었다. 논둑 작물에서 가장 많이 발견된 식물기생성선충은 나선선충류인 Rotylenchus (42%)였다. 처음으로 시도된 논둑 식물기생성선충 조사에서 예상보다 높은 밀도의 주요 식물기생성선충 8속 10종이 발견되었으므로 논둑에서 식물기생성선충이 논이 전환된 밭으로 점염될 염려가 있어 주의가 필요하다.

토성 및 지하수위의 차이가 청예사료작물의 생육과 수량에 미치는 영향 1. 논 전환밭에서 토성에 따른 청예사료작물의 생육과 수량 (Effects of Soil Texture and Ground Water Levels on the Growth and Yield of Forage Crops 1. Growth and Yield of Forage Crops Affected by Soil Texture in the Upland Diverted from Paddy Field)

  • 김수형;이호진
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 1994년도 춘계 학술대회지
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    • pp.124-125
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    • 1994
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