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梁義錫,安壽奉 충남대학교 농업과학연구소 1986 農業技術硏究報告 Vol.13 No.1
Long-term fertilizer application have been carried out at experimental farm of the Yeongnam Crop Experiment Station from 1967 to 1983 to obtain basic informations about longterm effect of fertilizer regime, especially, compost and chemical fertilizer on the soil chemical properties and the rice growth. 1. Rice yields obtained from the non-fertilized plot and PK applied plot were significantly reduced compared to NPK applied plot by 43% and 53%, respectively, primarily due to decrease of leaf area, crop growth rate, number of panicles and number of spikelets and delayed flowering. 2. No visible phosphorus-symptom and yield loss were obserbed at the plot that phosphorus was not included even though phosphorus content in the soil and rice plant were lowered. 3. The plot that was not received potassium resulted in yield loss by 9% compared to NPK applied plot due to decrease in potassium content in soil and rice plant, and spikelt number. 4. Available phosphorus, silica, and exchangeable potassium in soil significantly increased by adding compost to NPK applied plot and hence, increased grin yield by 6 to 9% compared to applied plot through improvement of nutrient uptake efficiency. 5. Grain yield of compost applied plot lowered by 30% than NPK applied plot due to decreased nutrient uptake efficiency and delayed rice growth while this yield was higher than Non-fertilized plot.
장기간(長期間)의 비료연용(肥料連用)이 수도(水稻)의 생육(生育)과 수량(收量)에 미치는 영향(影響)
양의석,안수봉,Yang, Euy Seog,Ahn, Su Bong 충남대학교 농업과학연구소 1986 Korean Journal of Agricultural Science Vol.13 No.1
다년간(多年間) 동일(同一) 비료(肥料)를 시용(施用)한 논에서 시비조건(施肥條件)의 차이(差異)가 토양(土壤)의 특성(特性)에 미치는 영향(影響)을 구명(究明)함과 아울러 수도(水稻)의 반응(反應)올 형태(形態), 생리(生理), 생육면(生育面)으로 분석검토(分析檢討)하였던 바 다음과 같은 결과(結果)를 얻었다. 1. 무비구(無肥區)와 무질소구(無窒素區)에서는 엽면적(葉面積)과 평균(平均) 생장속도(生長速度)의 감소(減少), 출수지연(出穗遲延), 수수(穗數)와 단위영화수(單位潁花數)의 감소(減少)로 3 요소구(要素區)에 비(比)하여 수량(收量)이 각각(各各) 43%와 53%정도(程度) 감소(減少)되었다. 2. 무인산구(無燐酸區)에서는 토양(土壤) 및 도체(稻體)의 인산함량(燐酸含量)이 낮았으나 그 결핍증상(缺乏症狀)이 나타날 정도(程度)는 아니었으며 수량(收量) 감수(減收)도 적었다. 3. 무가리구(無加里區)에서는 토양(土壤) 및 도체(稻體)의 가리함량(加里含量이 크게 떨어졌으며 1 수영화수(穗潁花數)의 감소(減少)로 삼요소구(三要素區)에 비(比)하여 약(約) 9%의 수량(收量) 감수(減收)가 있었다. 4. 삼요소(三要素)+퇴비시용구(堆肥施用區)에서는 토양중(土樓中)의 유효인산(有效燐酸), 치환성가리(置換性加里) 및 규산함량(珪酸含量)이 높았으며 도체내질소(稻體內窒素), 인산(燐酸), 가리(加里) 및 규산(珪酸)의 흡수량(吸收量)이 증대(增大)되고 단위영화수(單位潁花數)와 수수(穗數) 증가(增加)로 삼요소(三要素) 시용구(施用區)보다 6~9% 증수(增收)되었다. 5. 퇴비시용구(堆肥施用區)는 질소(窒素), 인산(燐酸)의 흡수량(吸收量) 감소(減少)와 영양생장부진(營養生長不振), 수수(穗數) 및 영화수(潁花數) 감소(減少)로 과실(結實)의 양호(良好)에도 불구(不拘)하고 삼요소구(三要素區)보다 수량(收量)이 약(約) 30% 감소(減少)되었으나 무비료(無肥料)보다는 28%의 증수효과(增收效果)가 인정(認定)되었다. Long-term fertilizer application have been carried out at experimental farm of the Yeongnam Crop Experiment Station from 1967 to 1983 to obtain basic informations about longterm effect of fertilizer regime, especially, compost and chemical fertilizer on the soil chemical properties and the rice growth. 1. Rice yields obtained from the non-fertilized plot and PK applied plot were significantly reduced compared to NPK applied plot by 43% and 53%, respectively, primarily due to decrease of leaf area, crop growth rate, number of panicles and number of spikelets and delayed flowering. 2. No visible phosphorus-symptom and yield loss were obserbed at the plot that phosphorus was not included even though phosphorus content in the soil and rice plant were lowered. 3. The plot that was not received potassium resulted in yield loss by 9% compared to NPK applied plot due to decrease in potassium content in soil and rice plant, and spikelt number. 4. Available phosphorus, silica, and exchangeable potassium in soil significantly increased by adding compost to NPK applied plot and hence, increased grin yield by 6 to 9% compared to applied plot through improvement of nutrient uptake efficiency. 5. Grain yield of compost applied plot lowered by 30% than NPK applied plot due to decreased nutrient uptake efficiency and delayed rice growth while this yield was higher than Non-fertilized plot.
신품종 갈색양송이 ‘다향’의 화학성분과 항산화활성 및 α-Glucoamylase 저해활성
김홍규(Hong-Kyu Kim),양의석(Euy-Seog Yang),박기문(Gi-Moon Park),김관후(Gwan-Hou Kim),김현호(Hyun-Ho Kim),이가순(Ka-Soon Lee) 한국식품영양과학회 2011 한국식품영양과학회지 Vol.40 No.8
신품종으로 개발한 양송이 ‘다향’의 우수성을 조사하기 위하여 총 폴리페놀성 물질, 유리당 및 β-glucan의 함량과 항산화활성 및 α-glucoamylase 저해활성을 기존 유통되고 잇는 705호 양송이와 비교 분석하였다. 총 폴리페놀 함량은 189±12 ㎎%로 기존 705호 양송이 168±8 ㎎%에 비하여 더 높았고, 유리당은 mannitol, xylose 및 trehalose의 3종이 각각 3.11, 0.12 및 0.08%로 mannitol이 가장 많이 함유되어 있었으며, β-glucan의 함량은 건조물에 대하여 28.34%이었고 705호 양송이는 26.55%의 함량을 보여 대조군에 비하여 높은 함량을 보여주고 있었다. DPPH용액에 의한 전자공여능은 다향은 물 추출물과 80% 에탄올 추출 각각 52.14% 및 57.81%, 705호는 각각 45.27% 및 46.93%를 보였으며, α-glucoamylase 저해활성은 물 추출물에서는 다향이 705호 양송이보다 저해활성이 더 높은 경향이었으며 80% 에탄올 추출물에서는 거의 비슷한 저해활성을 보였다. This study was conducted to investigate the quality characteristics, antioxidant activity, and α-glucoamylase inhibitory activity of Dahyang, a Chungnam Agricultural Research & Extension Service’s newly bred cultivar of brown button mushroom. Total phenolic compound contents of Dahyang and the no. 705 mushroom were 189±12 ㎎% and 168±8 ㎎%, respectively. The major free sugars in Dahyang were mannitol (3.11%), xylose (0.12%), and trehalose (0.08%). β-Glucan content was 28.34% in Dahyang and 26.55% in the no. 705 mushroom, respectively. Electron donating ability by DPPH in Dahyang and the no. 705 mushroom was 52.14% and 45.27% for the water extract, and 57.81% and 46.93% for the 80% ethanol extract, respectively. α-Glucoamylase inhibitory activity in a 10 ㎎/㎖ concentration of water extract were was 33.25% in Dahyang and 29.22% in the no. 705 mushroom, respectively.