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      • SCOPUSKCI등재
      • KCI등재

        사양토 조건에서 지중점적 관수・관비 처리가 감자 생육 및 수량에 미치는 영향

        문석주,윤을수,오승가,노일래,조영손 경상국립대학교 농업생명과학연구원 2023 농업생명과학연구 Vol.57 No.2

        There is an increasing interest in subsurface drip irrigation as one of the practices to efficiently solve problems associated with agriculturalwater shortage due to global warming and declining soil fertility. However, our understanding of subsurface irrigation effects on domesticfood crop, especially when combined with subsurface fertigation is still limited. We measured the growth characteristics and yieldcomponents of potatoes (Solanum tuberosum L.) under subsurface drip irrigation and fertigation (SSF), compared with conventional surfaceirrigation and fertigation (CF). For SSF drip pipes (Ø 14.10 ㎜, 1.6 L h-1) were placed with the depth of 40 ㎝. The pipeline intervals were 80 ㎝ at the experiment farm of Gyeongsang National University. The recommended fertilizer rate for potatoes (N-P-K : 100-88-130㎏ ha-1) was split-applied with N-P-K : 50-48-90 kg ha-1 before sowing, the remaining amount (N-P-K: 50-40-40 kg ha-1) was supplya tuber formation stage and enlargement stage with subsurface drip fertigation. Plant length was found to be the longest by SSF. but,while stem diameter was the thickest under CF. Total yield and marketable tuber yield were 38.6 FW Mg ha-1 and 27.4 FW Mg ha-1,respectively, under CF, which were greater by 14.0% and 20.8% compared to those under SSF. Water distribution measured acrossa soil profile down to 80 ㎝ ranged from 10% to 35% following subsurface drip irrigation, that the dominant gravitational movementof water from the subsurface irrigation depth campared to moving from dripping point to soil surface by capillary diffusion of water. The growth characteristics and water movement suggest that further research in subsurface irrigation system is needed to increase waterirrigation efficiency and crop productivity in sandy loam soil. 지중점적 관수・관비 시스템은 지구온난화로 인한 물 부족과 낮은 토양비옥도 문제에 대응하기 위한 효율적인 방법의 하나로 주목받고있다. 그러나, 국내 식량작물에 대한 지중점적 관수 효과, 특히 지중점적 관비와의 결합에 대한 이해와 관련 시스템 개발은 여전히 미미하다. 본 연구에서는 기존의 표면 관수 및 시비(CF)와 비교하여 지중점적 관수 및 관비 처리(SSF)에 따른 감자(Solanum tuberosum L.)의성장 및 수량 특성을 측정하였다. 지중점적 처리를 위해, 경상국립대학교 실험 포장(583 m2)에서 점적관(Ø 14.1 ㎜, 1.6 L h-1)을 80㎝ 간격으로 깊이 40 ㎝에 매설하였다. 감자의 표준 시비량(N-P-K: 100-88-130 ㎏ ha-1) 중 일정량 기비(N-P-K: 50-48-90 ㎏ ha-1)후, 잔여 시비량인 N-P-K: 50-40-40 kg ha-1을 괴경형성기와 괴경비대기에 절반씩 나누어 관비하였다. 감자 생육 특성 중 초장은 지중점적처리구에서 가장 길게 나타났으나, 경직경은 대조구에서 가장 두껍게 나타났다. 총 수량과 상서용 수량은 각각 대조구에서 38.6 Mgha-1, 27.4 Mg ha-1로 지중점적처리구와 비교하여 총 수량은 14.0%, 상서용 수량은 20.8% 높게 나타났다. 지중점적 관수 후 깊이 80㎝까지의 토양 단면조사에 따른 수분 분포는 10~35%의 수분함량을 보였으며, 모세관 확산 현상에 의해 중력으로 인한 수분의 하강이우세하게 나타났다. 따라서, 사양토 조건에서 지중점적관수・관비 처리에 따른 감자의 생육과 물의 이동은 투입비용과 에너지 효율성을고려한 작물 생산성을 높기기 위해 지중점적 관수시스템, 매설 깊이나 관수방법 등에 대한 추가적인 연구가 필요할 것으로 사료된다.

      • KCI등재

        임신중 분만중 및 산후에 있어서 혈당량과 혈장 NEFA의 변동

        문석주(SJ Moon),이종수(JS Lee),조재윤(JY Cho) 대한산부인과학회 1977 Obstetrics & Gynecology Science Vol.20 No.4

        비임신부 전임신기간 분만중 및 산후에 걸쳐 혈당경과 혈장 NEFA 함량을 측정하여 다음과 같은 결과를 얻었다. 1. 임신중에 혈당량은 임신이 진행됨에따라 점차 감소되는 경향이다. 임신중 혈장 NEFA 함량은 임신초기에 상승되었다가 5개월에 최하로 저하되었으며, 그 후부터 점차 증가하여 임신 제10개월에 최고에 달하였고 임신 제10개월반(42주)까지 하강되지 않했다. 2. 분만중 혈당량과 혈장 NEFA 함량은 급격히 증가하여 혈당량은 분만후 한시간에 최 고치에 도달되고 산후 제3일에 최하치였다. 혈장 NEFA 함량은 분만 제2기에 최고치였 고 태반 만출후에 급격히 하강하여 분만후 제2일과 제3일에는 정상치 이하로 하강하였다. 3. 제대혈당치는 모체 혈당치보다 항시 낮았고 혈장 NEFA 함량의 모체와 제대와의 비 는 2.2:1이었다. Employing Folin-Wu method for the measurement of blood glucose level and Dole method for non-esterified fatty acid in non-pregnancy, pregnancy, labor and postpartum period, the following results were obtained. Relevant discussions were made. 1. Gradually decreasing tendency in the concentration of blood glucose was noted with advancing gestation, The level of serum non-esterified fatty acid rise in the early pregnancy and dropped to the lowermost at the 5th month and then showed a gradual rise, reaching at a peak at the 10th month and maintaining the high level till 10 and a half month (42 weeks) of gestation. 2. The concentration of both blood glucose and serum non-esterified fatty acid abruptly increased during labor with the former at a peak in the post-partum 1 hour and the latter at the 2nd stage of labor and declining suddenly after the placental expulsion and finally dropping below normal on the postpartum 2nd or 3rd day. 3. The glucose level in the umbilical cord blood was constantly lower than that of the maternal blood while the level of non-esterified fatty acid in the maternal blood was as 2.2 times great as the cord blood.

      • KCI등재후보

        중학교 운동선수들의 스포츠형태와 종목유형별 스트레스 수준

        문석주(Moon Seok-Ju),이강헌(Lee Kang-hun) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.2

        This study was to investigate the reasons for the stresses of the athletes who attended middle schools, concerning the types and kinds of sports. Participants in the study was a total of 276 who was male, attended middle schools, and are participating as athletes in the types and kinds of sports under the organizations of the Korea Athlete Association. Test sheet, which was used in measuring the level of stresses on the athletes who are attending middle schools, was first developed by Kim Byung-Jun(1999) and then reorganized by An Jeong-Deok(2003). The level of the stresses of the athletes was calculated on the basis of the types and kinds of sports, the result was as follows. 1. The athletes's fears for failure in sports did not show significant differences in the kinds of sports, but in types of sports there were significant differences in which direct sports (involving physical touches) were higher than parallel ones (not involving physical touches). 2. The athletes' concerns about academic achievements in school and anxiety about competition had not significant differences among the kinds of as well as the types of sports. 3. There were not significant differences among the kinds of sports in anxiety about admission to the upper school, but there were significant differences among the types of sports in which direct sports were higher than parallel ones. 4. For the economical burden on the athletes in types of grouped sports, direct sports were higher than parallel ones.

      • KCI등재
      • Mole-Fetus Syndrome 3례 보고

        김두상,문석주 中央醫學社 1977 中央醫學 Vol.33 No.2

        Three cases of mole-fetus syndrome were admitted and treated at Han Gang Sung Sim Hospital, Choong-Ang University Medical School from November, 1971 to August, 1976 with the following results; 1) The ages of 3 cases were 27,28 and 31 respectively. 2) Preoperative diagnoses were inevitable abortion, intrauterine fetal death and missed abortion respectively. 3) The incidence was 1 out of 1, 549 cases of total deliveries, and 1 out of 140 cases of total spontaneous abortions. 4) The duration of pregnancy were 13 weeks, 18 weeks and 22 weeks respectively. 5) One of the three was recurrent mole-fetus syndrome with pulmonary tuberculosis. 6) Curettage was done in 2 cases and total abdominal hysterectomy was done in one case. They were all completely cured after 7 weeks, 12 weeks and 9 weeks of operation respectively.

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