• Title/Summary/Keyword: Double cropping

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Effects of Amount of Nitrogen Application on Decomposition of Barley Straw and Growth & Yield of Rice in Paddy Field of Double Cropping (이모작(二毛作) 답(畓)에서 질소시용량(窒素施用量)이 보릿짚 분해(分解)와 수도생육(水稻生育) 및 수량(收量)에 미치는 영향(影響))

  • Yoo, Chul-Hyun;Yang, Chang-Hyu;Lee, Sang-Bok;Kang, Seung-Weon;Han, Sang-Soo;Kim, Seong-Jo
    • Korean Journal of Soil Science and Fertilizer
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    • v.33 no.3
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    • pp.167-174
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    • 2000
  • To investigate the effect of amount of nitrogen application on decomposition of barley straw, growth and yield of rice in paddy field of double cropping, this study was conducted to Jeonbuk series at the Honam area from 1997 to 1998. Carbon persistence of barley straw was lowered while nitrogen persistence rate was increased as increasing amount of nitrogen application and carbon -nitrogen ratio was not decreased as increasing amount of nitrogen application. Soil microflora under barley straw application was high in order of actinomycetes>cellulosedecomposer>bacteria>fungi. Nitrogen starvation under barley straw application showed at tillering stage of rice, but this was not appeared in plot of N $144kg\;ha^{-1}$ application. Plant height, culm length and ear length of rice plant by barley straw application were short, but those of N $108kg\;ha^{-1}$ application was not different from compared with none-application barley straw. Rice yield of N $108kg\;ha^{-1}$ applied barley straw was smiliar to none-application barley straw, but that of N 90. $144kg\;ha^{-1}$ was highly decreased.

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The Characteristics of Traditional Irrigation Farming System of Uiseong-gun (의성 전통수리 농업시스템의 특징)

  • Lee, Yoo-Jick;Lee, Seung-Hye;Lee, Da-Young;Jeong, Jae-Hyeon;Park, Jin-Wook;Gu, Jin Hyuk
    • Journal of Korean Society of Rural Planning
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    • v.29 no.1
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    • pp.69-79
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    • 2023
  • Uiseong-gun, Gyeongsangbuk-do, one of the representative small rain regions, has developed a traditional irrigation farming system while overcoming and adapting to unfavorable agricultural environments from the days of the ancient nation of Jomunguk to the present. In 2018, its value was recognized and designated as Nationally Important Agricultural Heritage System No. 10. This study was conducted with the purpose of examining the characteristics of the traditional irrigation farming system in Uiseong from the viewpoints of irrigation facilities, irrigation communities, and agricultural activities. The research results are as follows. Uiseong-gun has been expanding irrigation facilities for agriculture since long ago, and it has been investigated that a total of 6,227 irrigation facilities are currently distributed along the Wicheon water system that crosses Uiseong-gun from east to west. Irrigation facilities appear differently depending on the topography. The irrigation facility has a 'su-tong' as an irrigation passage and a corkscrew structure 'mot-tchong' as a water quantity control device, so the amount of water was adjusted as needed. Through this facility, surface water with warmer temperature is supplied to the farmland to prevent cold damage to crops. Uiseong has developed activities to organize irrigation communities in one village or several villages to secure agricultural water from an early age. Currently, this tradition continues, and a total of 213 irrigation communities manage 375 irrigation facilities (6.0% of all irrigation facilities). Through this organization, called Mong-ri-gye, water for agriculture is obtained, managed, and distributed equitably. In order to increase agricultural production, Uiseong implemented double cropping by converting rice fields and fields. In the case of Mt. Geumseong, double cropping of rice and barley was mainly carried out until the 1970s, but since the 1980s, double cropping of rice and garlic has been implemented with higher income. One of the unique features of the agricultural system of this region is the spectacular landscape that changes simultaneously from field to rice field in spring and from rice field to field in autumn.

Study of Growing Environment for Double Cropping in Plastic Flim House. (플라스틱 하우스의 2단재배를 위한 생육환경에 관한 연구)

  • 김기성;김문기
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1997.11a
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    • pp.8-13
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    • 1997
  • 온실내 재배면적을 최대한 확보하기위해서 2단으로 베드를 설치할 경우 하단부의 생육환경은 상단부와 많은 차이를 보일 것으로 예상된다. 특히 광환경은 매우 열악할 것으로 예상되지만, 호음성식물(Shade plant)의 경우 광포화점이(400$\mu$mol$^{-l}$ m$^{-2}$ ) 비교적 낮기 때문에 재배가 가능할 것으로 판단된다. (중략)

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Effects of Soil Moisture Control and Dormancy Breaking A on Bud Burst and Fruiting for Double Cropping System in a Year in ′Kyoho′ Grapes (포도 ′거봉′ 2기작재배를 위한 하계 휴면타파에서 토양수분조절과 휴면타파제 처리가 발아에 미치는 영향)

  • 오성도;김용현;최동근
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 2002.04a
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    • pp.131-136
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    • 2002
  • 포도 2기작 재배는 아열대 지방인 대만 등에서 온난한 기후를 이용하여 실시되고 있다. 최근에 와서는 일본에서도 시설내 환경조절을 통하여 거봉포도를 한 나무에서 1년에 2회 생산하는 2기작 재배가 시도되고 있다. 2기작 재배 기술이 확립되면 수익의 증가가 기대됨과 동시에 하우스의 이용효율이 높아진다. 또한 수세도 쇠약해지지 않아 정상적인 가온재배에 비해서 수세 유지가 양호하다(Yamamoto, 1993). (중략)

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