• Title/Summary/Keyword: 관개량

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Analysis of Exchangeable Sodium Percentage During Desalinization of Reclaimed Tidal Lands (간척지 토양의 제염과정 중 교환성 나트륨 백분율 분석)

  • Koo Ja Woong;Choi Jin Kyu;Son Jae Gwon
    • KCID journal
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    • v.8 no.1
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    • pp.48-60
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    • 2001
  • This study was performed in order to produce the basic data for the estimation of water requirements for desalinization and developing prediction techniques of desalinization to be applicable in the beginning of tidal land reclamation through analyzing ch

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Comparison of Initial and Mean Concentrations of Nitrogen and Phosphorus in Runoff from a Paddy Field (논에서의 강우 유출시 질소$\cdot$인의 초기농도와 유출과정 평균농도 비교)

  • Yoon Kwang-sik;Choi Jin-kyu;Cho Jae-young;Son Jae-gwon;Koo Ja-woong
    • KCID journal
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    • v.7 no.1
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    • pp.27-35
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    • 2000
  • To investigate the difference between initial and mean concentrations of nitrogen and phosphorus in runoff from a paddy field, water quality samples were taken for every two hours when runoff occurred by rainfall. The arithmetic mean concentration and wei

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Effects of Irrigation on Soil Moisture and Growth of Soybean (관개량이 토양수분과 콩 생육에 미치는 영향)

  • Yoon, Kwang-Sik;Han, Kuk-Heon;Choi, Soo-Myung;Nam, Sang-Sik;Lee, Yong-Jik;Kim, Jin-Taek
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2002.10a
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    • pp.29-32
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    • 2002
  • In order to investigate effect of irrigation on soil moisture and soybean growth, a experimental plot, which was shielded from precipitation was established. Four different irrigation rates were applied and soil moisture variations were monitored with TDR. Soybean yield and product quality are under scrutiny.

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Correlations between Pumping Rate to Irrigated Area and Rainfall Amount in a Paddy Field (논관개 양수량의 관개면적과 강수량과의 관계)

  • Lee, Sung-Hee;Kim, Tai-Cheol
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2001.10a
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    • pp.89-92
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    • 2001
  • This study was to analyse the correlations between pumping rate to irrigated area and rainfall amount in the Geum river basins. A total of 84 pumping stations and field data from the paddy of 28,772 ha were introduced to the analysis. The results showed that the pumping volume was highly correlated to the rainfall during the irrigation period and irrigated area. But, it was difficult to determine the exact correlation factors, because of the lack of data like the efficiency of water in the paddy field.

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Characteristics of T-N and T-P Runoff Loadings of Churyeong-cheon Watershed in the Seomjin River Basin (섬진강 수계 추령천 유역의 총질소 및 총인의 유출부하 특성)

  • Choi Jin-Kyu;Son Jae-Gwon;Koo Ja-Woong;Yoon Kwang-Sik;Kim Young-Joo
    • KCID journal
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    • v.9 no.2
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    • pp.43-50
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    • 2002
  • To provide the basic information for the water quality improvement of the Seomjin River Basin, the water qualities of the Churyeong-cheon watershed were investigated from May in 1999 to September in 2002. Annual total runoff at the Churyeong-cheon watersh

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Simulation of Optimum Irrigation Water of Upland Crops by Evapotranspiration Calculation Methods (증발산량 산정기법에 따른 밭작물의 적정 관개량 모의)

  • Kim, Sun-Joo;Lee, Joo-Yong;Kim, Phil-Shik
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.271-274
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    • 2003
  • The objectives of this study are for finding an optimal calculation method comparing observed evapotranspiration with calculated evapotranspiration by Blaney-Criddle, Penman and Penman-Monteith method which are used in many place of Korea. And after appling optimal calculation method, optimal irrigation is presented through calculation of effective rainfall and requirement water considering characteristics of region, crop and soil.

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