새만금 간척지 밭 토양의 관개 방식별 관개용수량과토양 용적수분함량 변화 분석 연구
Analysis of Irrigation Amounts and Soil Volumetric Water Contents by Irrigation Method in Saemangeum Reclaimed Tideland
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초록
This study was conducted to analyze changes of irrigation water and soil volumetric water content by irrigation method of field soil in Saemangeumreclaimed tideland. The main test irrigation methods was surface drip irrigation, sprinkler irrigation, and sub drip irrigation. In addition, the correlationbetween irrigation amounts and crop yield by irrigation method was investigated. For soil volumetric water contents increases by 25%, surface dripirrigation took 1.5 hour, sprinkler irrigation took 2.0 hours, and sub drip irrigation took 3.0 hours. As a result of analyzing the irrigation amountsaccording to the yield, the surface drip irrigation was 2.66 mm/day in the seedling stages, 3.31 mm/day in the vegetative growth stages, and 5.09mm/day in the flowering stages. Sprinkler irrigation was 2.90 mm/day in the seedling stages, 3.87 mm/day in the vegetative growth stages, and 7.11mm/day in the flowering stages. Sub drip irrigation was 2.42 mm/day in the seedling stages, 3.09 mm/day in the vegetative growth stages, and 4.87mm/day in the flowering stages. It was analyzed that there was a statistically significant difference in irrigation amounts by fresh weight and irrigationmethod (F=4.002, p=0.022), and irrigation amounts by dry weight and irrigation method (F=3.499 p=0.034). Surface drip irrigation was judged to bemore appropriate than sprinkler irrigation or sub drip irrigation for field crops in Saemangeum reclaimed land.
Abstract
This study was conducted to analyze changes of irrigation water and soil volumetric water content by irrigation method of field soil in Saemangeumreclaimed tideland. The main test irrigation methods was surface drip irrigation, sprinkler irrigation, and sub drip irrigation. In addition, the correlationbetween irrigation amounts and crop yield by irrigation method was investigated. For soil volumetric water contents increases by 25%, surface dripirrigation took 1.5 hour, sprinkler irrigation took 2.0 hours, and sub drip irrigation took 3.0 hours. As a result of analyzing the irrigation amountsaccording to the yield, the surface drip irrigation was 2.66 mm/day in the seedling stages, 3.31 mm/day in the vegetative growth stages, and 5.09mm/day in the flowering stages. Sprinkler irrigation was 2.90 mm/day in the seedling stages, 3.87 mm/day in the vegetative growth stages, and 7.11mm/day in the flowering stages. Sub drip irrigation was 2.42 mm/day in the seedling stages, 3.09 mm/day in the vegetative growth stages, and 4.87mm/day in the flowering stages. It was analyzed that there was a statistically significant difference in irrigation amounts by fresh weight and irrigationmethod (F=4.002, p=0.022), and irrigation amounts by dry weight and irrigation method (F=3.499 p=0.034). Surface drip irrigation was judged to bemore appropriate than sprinkler irrigation or sub drip irrigation for field crops in Saemangeum reclaimed land.
참고문헌 (22)
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