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토양개량제(土壤改良劑) 처리(處理)가 토양(土壤)의 물리성(物理性)과 대두(大豆) 수량(收量)에 미치는 영향(影響)
조인상,허봉구,류관식,엄기태,조성진,Jo, In Sang,Hur, Bong Koo,Ryu, Kwan Shig,Um, Ki Tae,Cho, Seong Jin 한국토양비료학회 1987 한국토양비료학회지 Vol.20 No.1
This experiment was designed to find out the effects of soil conditioner, Polyacrylamide (PAM) and Bitumen, on the changes of soil aggregate properties and crop yields. The soil conditioners were treated at the rates of 0.5% and 1% to sandy loam and silty clay loam soils. The aggregate stability, wetting angle, mean weight diameter and air permeability were analyzed. Pot experiments were carried out to investigate the soybean growths and soil property changes after the soil conditioners were sprayed to surface soils. Soil aggregate stability was increased remarkably by the soil conditioner, PAM and Bitumen, treatments. PAM was more effective in sandy loam than silty clay loam, but Bitumen was better in silty clay loam. Wetting angle of the soil was changed slightly by PAM treatment, but it was greatly changed to hydrophobic by Bitumen treatment. Air permeability, water infiltration rate and moisture retention of the soils were increased by surface application of soil conditioners, PAM and Bitumen. The growths of soybean in conditioner applicated pots were better than those of untreated pots from early stage, and the yields were increased 6-13%. 토양개량제(土壤改良劑)가 토양(土壤) 입단형성(粒團形成)에 미치는 영향(影響)을 구명(究明)하고 토양(土壤) 입단(粒團)의 특성(特性)이 토양(土壤) 및 작물생육(作物生育)에 미치는 효과(效果)를 검토(檢討)하기 위하여 토양개량제(土壤改良劑) PAM 및 Bitumen 을 사양토(砂壤土) 및 미사질(微砂質) 식양토(埴壤土)에 각각(各各) 0.5%, 1%씩 처리(處理)하여 입단(粒團)의 안정성(安定性), 습윤각(濕潤角), 평균(平均) 중량직경(重量直徑), 통기성등(通氣性等)을 조사(調査)하고 토양개량제(土壤改良劑)를 미사질(微砂質) 식양토(埴壤土) pot에 각각(各各) 0.5%, 1%씩 표면(表面) 처리(處理)하여 대두(大豆) 생육(生育)과 토양(土壤) 특성(特性) 변화(變化)를 조사(調査)하였다. 1. 토양개량제(土壤改良劑) PAM 및 Bitumen 처리(處理)에 의(依)하여 토양입단(土壤粒團)의 안정성(安定性)은 현저(顯著)히 증대(增大)되었으며 동일농도(同一濃度)에서 PAM은 사양토(砂壤土)에서 Bitumen은 미사질(微砂質) 식양토(埴壤土)에서 더 효과적(效果的) 이었다. 2. PAM 처리(處理)에 의(依)하여 토양(土壤)의 습윤각(濕潤角)은 크게 변화(變化)되지 않았으나 Bitumen 처리(處理)에 의(依)하여 토양(土壤)의 소수성(疎水性)은 크게 증대(增大)되었다. 3. PAM 및 Bitumen 처리(處理)에 의(依)하여 통기성(通氣性) 및 수분(水分)의 침투속도(浸透速度)가 증대(增大)되고 수분함량(水分含量)이 많아졌다. 4. 대두(大豆)의 생육(生育)은 토양개량제(土壤改良劑) 처리(處理)에 의(依)하여 무처리(無處理)보다 초기(初期) 생육(生育)이 양호(良好)하고 수량(收量)은 6-13% 증수(增收) 되었다.
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조인상 한국콩연구회 1991 韓國콩硏究會誌 Vol.8 No.2
Some field survey and experiment data were analyzed to understand the effects of soil physical properties on soybean growth and soil physical management methods were presented. Average soil bulk densities of soybean fields were 1.22 for surface layer and 1.36 for subsoils and plowing layer thickness was 11.5cm. Soybean growth were closely related to plowing layer, drainage class and bulk density of the soils. The main soil factors to control the soybean growth were shallow soil depth, steepnees and hardness. As increasing the soil bulk density from 1.27 to 1.46, the soybean yields were decreased to 33%. Chiseling, and trenching were the useful practices to improve the soil physical conditions and soybean growth. The effects of various organic resources on soil physical characteristics and soybean yields, the optimum ranges of soi1 physical properties, and the useful sail physical improvement methods were presented.
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학부모가 인식한 유아교사의 갈등관리 유형이 교사에 대한 신뢰와 행동의도에 미치는 영향
조인상,신승연 국제문화기술진흥원 2023 The Journal of the Convergence on Culture Technolo Vol.9 No.5
This study explored the influence of conflict management styles (i.e., Integrating, Considering, Compromising, Dominating, Avoiding) adopted by early childhood teachers to deal with conflict that may arise with parents on parents’ behavioral intentions (i.e., re-registration intentions, oral transmission intentions) with the mediating role of parents’ trust in teacher on the relationship between conflict management styles and parents’ behavioral intentions. The data were collected from 356 parents in southern Gyung-gi-do and data analysis was done through structural equation modeling using AMOS 26.0. The study results show that the Integrating style of teachers was positively related to the parents’ intention of re-registration. Trust in teacher was found to have an mediation effect on the Integrating, the Avoiding and the Compromising styles and re-registration intentions and oral transmission intentions of parents respectively. The results imply the importance of conflict management styles and building trust for enhancing the parents’ behavioral intentions.
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조인상 대전대학교 군사연구원 2006 군사학연구 Vol.10 No.-
A study on the structure and the causes of the image of the army
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경운방법(耕耘方法)의 차이(差異)가 토양(土壤)의 물리성(物理性)과 수도생육(水稻生育)에 미치는 영향(影響)
조인상,민경범,김리열,임정남,엄기태,Jo, In-Sang,Min, Kyeong-Beom,Kim, Lee-Yul,Im, Jeong-Nam,Um, Ki-Tae 한국토양비료학회 1985 한국토양비료학회지 Vol.18 No.2
경운방법(耕耘方法)의 차이(差異)가 토양(土壤)의 물리적특성(物理的特性)과 수도생육(水稻生育)에 미치는 영향(影響)을 구명(究明)하기 위(爲)하여 미사식양질답(微砂埴壤質畓)에서 경운기경운(耕耘機耕耘), 무경운(無耕耘), 로타리, 심경(深耕), 심토파쇄(深土破碎) 및 치슬프라우 등(等) 6개(個)의 상이(相異)한 경운조건하(耕耘條件下)에서 수도(水稻)를 재배(栽培)하였다. 1. 작업능률(作業能率)은 치슬프라우가 600a/hr로 가장 높았으며 트랙터심경(深耕)>심토파쇄(深土破碎)>로타리>경운기경운(耕耘機耕耘)의 순서(順序)로 낮아졌다. 2. 물리성개선(物理性改善) 효과(效果)는 토심(土深) 20cm까지는 트랙터 심경(深耕)과 치슬프라우가 양호(良好)하였으며, 20cm이하(以下) 깊이에서는 심토파쇄(深土破碎)가 효과적(效果的)이었다. 3. 수도수량(水稻收量)은 경운기경운(耕耘機耕耘)에 비(比)하여 로타리구(區) 4% 무경운구(無耕耘區)는 11% 감수(減收)되었고, 심경구(深耕區)는 5%, 심토파쇄(深土破碎) 4%, 치슬프라우는 3% 증수(增收)되었으며 작업능률(作業能率)과 수량면(收量面)에서 종합(綜合) 고찰(考察)해보면 심경구(深耕區)가 합리적(合理的)인 경운방법(耕耘方法)으로 판단(判斷)된다. A field experiment was conducted to find out the effects of tillage methods on the changes of soil physical properties and rice yields. Silty clay loam soil was treated with six kinds of different tillage methods, cultivator plow-rotary, rotary, tractor deep plow-rotary, subsoiling-rotary, chisel plow-rotary and no-tillage, and Jinju variety of rice was cultivated. The results were summarized as follows; 1. Working efficiency was highest at chisel plow and the efficiencies were decreased with the order of deep plow, subsoiling, rotary, and cultivator plow. 2. Deep plow and chisel plow were considered as the useful treatments of physical properties to 20 cm depth soil and subsoiling was effective to 40 cm depth soil. 3. Rice yields were decreased 4% by rotary and 11% by no-tillage compare to cultivator plow-rotary but the yields were increased 5% by deep plow, 4% by subsoiling and 3% by chisel plow. As the results of all the data, welting efficiency, soil physical properties and rice yields, tractor deep plow was recommendable tillage method for rice paddy soils.
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