• 한국토양비료학회지
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• 제41권5호
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• pp.348-353
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• 2008

토양에서 인산가용화 미생물의 역할을 탐색하기 위해, 밭과 시설재배 토양에 서식하는 인산가용화 미생물의 특성을 조사하였다. 노지 밭 토양에 비해 시설재배지 토양에서 EC가 높았으며, 토양 pH, 유기물, 유효인산, 치환성 양이온 및 총 인도 시설재배지에서 비교적 높은 경향이었다. 인산가용화 세균의 수는 시설재배지 토양이 밭 토양보다 높았으나, 인산가용화 세균의 종류는 밭 토양에 많았다. 인산가용화 세균의 밀도와 인산가용화능 간에 정의 상관이 있었다. 밭 토양에서는 Bacillus, Cedecea, Brevibacillus, Paenibacillus Pseudomonas, Serratia속 등이 시설재배지 토양에서는 Bacillus, Cellulomonas 속 등의 인산가용화 세균이 분리되었다.

• 한국관개배수논문집
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• 제11권2호
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• pp.55-63
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• 2004

To devise better development plan, survey was conducted about current farmer's irrigation management on upland in the YoungSan River Irrigation Project District IV. Major upland crops are garlic and onion in this region. Currently, upland irrigation has b

• Applied Biological Chemistry
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• 제34권2호
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• pp.187-189
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• 1991

Gelatinization temperatures of upland and lowland waxy brown rice starches annealed at $25^{\circ}C$ and $60^{\circ}C$ for 24hr were investigated with differential scanning calorimetry No annealing effect was observed at low temperature. The upland rice starch showed narrower range of gelatinization temperature upon annealing treatment at $60\circ}C$ compared with the lowland rice starch. The enthalpy of gelatinization was not changed in case of the upland rice starch but was increased in case of the lowland one upon annealing.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2021년도 추계학술대회
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• pp.8-8
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• 2021

• 한국작물학회지
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• 제51권5호
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• pp.401-407
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• 2006

본 시험은 논과 밭재배에 따른 양파생육 및 채종용 모구 생산, 저장력의 차이를 구명하고자 실시하였으며 그 결과는 다음과 같다. 1. 시험전후 토양의 화학적 성분을 보면 질소, 인산, 칼리는 밭토양에서 많았으며 칼슘, 마그네슘, 나트륨은 논토양에서 많았다. 토양수분은 논토양에서 많았고 지중온도는 밭 토양에서 높았다. 2. 양파의 지상부 생육은 밭재배가 양호했으나, 구의 발달은 월동이후 초기에는 논재배에서 빨랐으나 구 비대기 이후에는 밭재배가 더 컸다. 3. 구의 평균 무게는 밭재배가 무거으며, 양파구의 수분함량은 밭재배가 더 많았다. 경도는 논재배가 더 단단했으며 당도는 밭재배에서 더 높았다. 4. 양파의 무기성분 함량은 질소, 인산, 칼리는 밭재배에서 많았고 칼슘, 마그네슘, 나트륨은 논재배에서 많았다. 5. 구중 분포를 보면 밭재배에서는 구가 큰 양파가 많이 분포했으며 논재배에서는 작은 크기의 양파가 많이 분포하였고 양파 채종에 알맞은 모구 생산 비율은 논재배가 $63{\sim}70%$로 밭재배에 비해 $8{\sim}26%$ 더 많았다. 6. 부패율은 논재배가 $27.2{\sim}34.6%$이고 밭재배가 $37.5{\sim}51.4%$로 논재배가 $8.7{\sim}24.2%$ 적었다.

• 한국잡초학회지
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• 제17권2호
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• pp.157-162
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• 1997

답전윤환(畓田輪換)에 따른 잡초발생 양상(樣相)을 구명하여 환경보존형(環境保全型) 잡초방제(雜草防除) 기술(技術)의 기초자료를 얻고자 수행한 결과 다음의 결과를 얻었다. 1. 답전윤환(畓田輪換)에 따른 초종별 우점도(優占度)를 보면 밭을 논으로 윤환(輪換)함으로서 방동사니, 피, 마디꽃, 밭뚝외풀, 여뀌 순으로 우점도(優占度)가 높았으며 반대로 논을 밭으로 윤환(輪換)함으로서 피, 바랭이, 방동사니, 밭뚝외풀 순으로 우점도(優占度)가 높았다. 2. 답전윤환(畓田輪換)에 의한 잡초방제(雜草防除) 효과(效果)는 74-78%로 밭을 논으로 윤환(輪換)함으로서 명아주, 바랭이, 환삼덩굴, 메꽃, 닭의장풀 등이 반대로 논을 밭으로 윤환(輪換)함으로서 마디꽃, 올챙이고랭이, 피 등이 감소(減少)하였다. 3. 답전윤환(畓田輪換)에 따른 초종별 유사성(類似性) 계수(係數)는 밭을 논으로 윤환(輪換)함으로서 8, 반대로 논을 밭으로 윤환(輪換)함으로서 64를 나타내었으며 Simpson index로 0.34-0.35로 나타나 답전윤환(畓田輪換)에 의해 군락내 초종이 매우 다양화(多樣化)되었다.

• 한국토양비료학회지
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• 제49권2호
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• pp.157-167
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• 2016

The interspecific estimation for tolerance capacities of upland crop species to excessive soil water stress in paddy field is significant in agricultural practices. Most of upland crops can be damaged by either excessive soil water or capillary rise of the water table during rainy season in paddy fields. The major objective of this study was to evaluate water stress of upland crops under different drainage classes in converted paddy field. This experiment was carried out in poorly drained soil (PDS) and imperfectly drained soil (IDS) of alluvial sloping area located at Toero-ri, Bubuk-myeon, Miryang-si, Gyeongsangnam-do. The soil was Gagog series, which was a member of the fine silty, mixed, nonacid, mesic family of Aeric Endoaquepts (Low Humic-Gley soils). Two drainage methods, namely under Open ditch drainage methods (ODM) and, Closed pipe drainage methods (PDM) were installed within 1-m position at the lower edge of the upper paddy fields. The results showed that sum of excess water days ($SWD_{30}$), which was used to represent the moisture stress index, was 42 days (the lowest) in the PDM compared with 110 days in the ODM. Most of upland crops were more susceptible to excessive soil water during panicle initial stage on more PDS than on IDS. Yield of upland crops in the PDM was continuously increased by the rate of 15.1% on sorghum, 15.4% foxtail millet, 53.6% proso millet, 49.6% soybean and 47.9% adzuki bean as compared in the ODM. The capacity for tolerance by excessive soil water based on yield of each upland crop in the poorly drained sloping paddy fields was the order of sorghum, soybean, foxtail millet, proso millet and adzuki bean. Therefore, Sorghum is relatively tolerant to excessive soil water conditions and, may be grown successfully in converted paddy field.

• 한국토양비료학회지
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• 제36권6호
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• pp.423-428
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• 2003

밭농사의 다원적 기능 중 여름철 고온기의 기후순화 기능을 일증발산량으로 평가하였는데, 일증발산량은 우리나라 주요 밭작물의 평균작물계수와 밭토양의 평균 토양수분계수를 이용하여 추정하였다. 7월부터 8월 사이의 고온기간 중 밭농사에 의해 날아간 수분증발산량은 ha당 1,676 Mg으로 추정되었으며, 밭 면적 전체로는 $1.224{\times}10^6Mg$에 해당되었다. 이러한 수분의 증발산을 통한 기후순화기능의 경제적인 가치를 기화열로 환산하면 $7.1{\times}10^{14}kcal$에 해당하였으며, 이 열량을 냉방용 석유 값으로 평가하면 12조 3,412억원에 해당되었다.

• 한국자원식물학회지
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• 제20권3호
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• pp.258-262
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• 2007

The study was conducted to evaluate the performance of the popular isoflavone-rich soybean 'agakong' in upland and in drained-paddy fields. Analysis revealed no significant variation in terms of plant height, number of seeds per pod, number of nodes, and 100-seed weight between the two cropping system. Number of pods was significantly higher in paddy field(234.2kg 10a$^{-1}$) compared to those harvested in the upland field, which was later manifested on the yield where paddy soybeans obtained 278.1kg 10a$^{-1}$ whereas upland only obtained 179.3kg 10a$^{-1}$. This observed difference in yield was attributed to the observed higher amount of N in the paddy soil (0.907%) as compared to the upland soil (0.458%). In terms of nutritional content, protein and phytic acid contents were the only parameters that showed significant differences while oil, sugar, reducing power and fatty acids were all comparable in paddy and filed condition. Protein content was higher in upland soil (47.4%) than that of the paddy (44.9%) soil. On the opposite, phytic acid was higher in paddy (2.90%) than in upland (1.09%). This study showed that the yield of soybean is generally a factor of soil N, drained-paddy field production of soybean is comparable to upland-filed production with the benefit of increasing phytic acid content while maintaining its nutritional value.

• 한방비만학회지
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• 제22권1호
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• pp.21-29
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• 2022

Objectives: This study aimed to examine the changes in ingredients according to its cultivation method by examining the content of saponin and non-saponin components of ginseng. Methods: Ginseng saponin component analysis was compared and reviewed using the high-performance liquid chromatography method, and acidic polysaccharide component was measured using the carbazole sulfuric acid method. Results: The comparative analysis of ginseng saponin content of 4 and 6 years old fresh ginseng showed the following results. According to the cultivation method, upland field cultivation fresh ginseng showed higher average content of crude saponin than paddy field cultivation fresh ginseng. Whereas, paddy field cultivation fresh ginseng showed higher average content of total saponin than upland field cultivation fresh ginseng. Ginsenoside Rb1 showed higher content of paddy field cultivation fresh ginseng than upland field cultivation fresh ginseng in 6 years old ginseng. However, it showed higher content of upland field cultivation fresh ginseng than paddy field cultivation fresh ginseng in 4 years old ginseng. Additionally, ginsenoside Rg1 showed higher content of paddy field cultivation fresh ginseng than upland field cultivation fresh ginseng in 6 years old ginseng, whereas upland field cultivation fresh ginseng showed higher content of paddy field cultivation fresh ginseng in 4 years old ginseng. The effect on the content of ginseng saponins and acidic polysaccharides according to paddy field and upland field cultivation methods is considered to be small. Conclusions: The paddy field cultivation method, which is more efficient in production cost due to depletion of farmland and long-distance cultivation, is considered to be an economical cultivation method.