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강항원,고지연,박향미,이재생,강위금,박경배,Kang, Hang-Won,Ko, Jee-Yeon,Park, Hyang-Mee,Lee, Jae-Saeng,Rang, Ui-Gum,Park, Kyeong-Bae 한국토양비료학회 2000 한국토양비료학회지 Vol.33 No.1
축분퇴비의 시용시 보충하는 비종에 따른 하우스 내부의 가스 발생양상과 미생물의 다양성을 구명하여 가스피해 정감 및 토양건전성 유지를 위한 기초자료를 얻고자 식양질 하우스토양에 축분퇴비의 시용량을 고추의 기준시비량과 퇴비에 함유된 인산함량을 기준하여 정식 2주전에 시용하고 부족한 질소성분을 요소와 완효성U/F복비로 보충처리하여 4월부터 8일 까지 재배하였다. 암모니아 및 아민류 가스는 정식초기에는 다소 낮은 농도로 배출되다가 정식 후 27일경에 peak를 보인 후 급격히 감소하여 33일경 이후에는 검출되지 않았으며, 평균농도는 요소구에 비하여 완효성U/F복비구가 암모니아 42%, 아민류 85%감소되었다. 이산화탄소는 요소구 1,200~3,200, 완효성U/F복비구 $900{\sim}2,650mg\;{\ell}^-$의 범위로 배출되었고, 평균농도는 요소구 2,260, 완효성U/F복비구 $1,590mg\;{\ell}^-$이었다. 세균, 방선균, B/F비, A/F비, 암모니아 및 아질산산화세균, 질산환원균 등의 밀도는 재배기간이 경과됨에 따라 완효성U/F복비구에서 더 높았으나 사상균 수는 요소구에서 많았고 탈질균은 비슷한 경향을 보였다. 조사한 6종 미생물 밀도의 백분율을 이용한 다양성지수는 0.10~0.35 범위로 재배기간이 경과함에 따라 감소하는 경향이었으며, 처리간에는 완효성U/F복비구가 요소구에 비하여 더 높았다. This study was conducted to gain basic data for alleviation of gas emission and conservation of healthy soil environment by investigating an aspect of gas emission and microbial diversity due to the supplement of different fertilizers after application with a livestock manure compost in greenhouse soils. Green pepper was cultivated in clay loamy soil from April to August. Before planting, a livestock manure compost was applied with $741mg\;ha^{-1}$ on the basis of the phosphate content contained in compost. And then, deficient nitrogen for cropping was supplemented with either quick-acting fertilizer of urea or a controlled slow release fertilizer made from urea formaldehyde(U/F). $NH_3$ and R $NH_2$ gases emitted from soil showed a low concentration in the early stage but a maximum in 27 days after planting, then decreased rapidly and not detected after 33 days. Their average concentrations were 42% and 85% lower in the treatment of slow release fertilizer than that of urea fertilizer, respectively. $CO_2$ gas emitted under urea fertilization was ranged from 1,200 to $3,200mg{\ell}^{-1}$ and that in slow release fertilizer was $900{\sim}2,650mg\;{\ell}^{-1}$. The average concentration of urea treatment was $2,260mg{\ell}^{-1}$ and 30% higher than that of slow release fertilizer. The treatment of slow release fertilizer with the lapse of cropping time populated larger in numbers of bacteria, actinomycetes, nitrate bacteria and nitrate reduction bacteria, and ratios of bacteria and actinmycetes to fungi than that of urea fertilizer. But the number of fungi was higher in the treatment of urea fertilizer and denitrifying bacteria showed a similar trend in both treatments. The microbial diversity index, which calculated with numbers of 6 species of microorganisms, was decreased with increasing of growing stage in the range of 0.1 to 0.35 and that was higher in the tratment of slow release fertilizer than urea.
조생종 벼의 평야지 재배에 따른 등숙 온도 차이에 의한 전분구조 및 종자 저장단백질 특성 연구
곽지은,이점식,원용재,박향미,곽강수,김미정,이춘기,김선림,윤미라,Kwak, Jieun,Lee, Jeom-Sig,Won, Yong-Jae,Park, Hyang-Mee,Kwak, Kang-Su,Kim, Mi-Jung,Lee, Choon-Ki,Kim, Sun-Lim,Yoon, Mi-Ra 한국작물학회 2018 한국작물학회지 Vol.63 No.2
This study was performed to understand the effects of filling stage temperature on the characteristics of starch and storage protein and the quality of rice grains. Eight early maturing rice varieties were cultivated in Cheolweon (latitude $38^{\circ}15^{\prime}N$) and Suwon (latitude $37^{\circ}16^{\prime}N$) areas in Korea. Rice grown in Suwon, with relatively high ripening period temperatures, showed significantly reduced head rice ratio and eating qualities, higher protein and lower amylose contents than rice grown in Cheolweon. In rice that ripened under high temperature conditions, the starch contained significantly less short-chain amylopectin (DP < 12) but more intermediate- (DP 13-24) and long- (DP > 25) chain amlylopectin compared to rice that ripened under normal conditions. In addition, the electrophoretic pattern of rice storage protein under high- temperature conditions revealed decreased prolamin and increased glutelin contents.
강위금(Ui-Gum Kang),박향미(Hyang-Mee Park),이재생(Jae-Saeng Lee),고지연(Jee-Yeon Ko),이용환(Yong-Hwan Lee),전원태(Weon-Tae Jeon),김민태(Min-Tae Kim),좌재호(Jae-Ho Joa) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.3
콩재배시 질소와 인산질 양분의 공급원으로서 근류균과 균근균의 접종효과를 질석충진 포트와 포장토양에서 검토하였다. 영남지역 32개 밭토양에서 포자발아력이 우수한 균근균 Acaulospora sp., Gigaspora sp., Glomus sp. 3종을 분리하여 각각의 포자 10개를 질석으로 충진한 포트에 1x10<SUP>8</SUP> cells의 근류균 Bradyrhizobium japonicum YCK 213과 함께 다장콩과 은하콩에 접종했을 때 콩의 착협기 지상부 건물중과 뿌리혹무게는 다장콩의 Glomus sp. 접종구에서만 유의적인 (P ? 0.05) 증가를 보였다. 이 Glomus sp.를 pH 5.2, 유효인산 464 mg kg<SUP>-1</SUP>, 토착 B. japonicum 1x10³ cells, 그리고 균근균 포자가 10±0.2개 분포하는 적황색토에서 인산과 칼리만 시용하고 질소를 결재한 상태로 4.8x106 cells의 B. japonicum YCK 213과 10개의 Glomus 포자를 다장콩 2립에 접종한 결과, 콩의 수량은 질소 3 -인산 (P₂O5) 3 - 칼리 (K2O) 3.4 kg 10a<SUP>-1</SUP> 의 관행시비구(275.2 kg 10a<SUP>-1</SUP>)에 비해 유의적으로 증가하지는 않았지만 절대수량으로 볼 때 근류균 단독접종구는 2.4%, 근류균과 균근균 혼합접종구에서는 3.9% 증가되었다. The dual inoculation response of soybean with rhizobium and mycorrhiza was examined in pot vermiculite and field soils. In order to select a symbiotically compatible mycorrhiza with Bradyrhizobium japonicum, a highly germinating spore among 60 strains from 32 upland soils in southern part of Korea was obtained in Acaulospora sp., Gigaspora sp. and Glomus sp., respectively. As a result of dual inoculation of Glycin max cv. Dajangkong and Eunhakong both with 1×10<SUP>8</SUP>cells of B. japonicum YCK 213 and 10 spores of each mycorrhiza in vermiculite pot, only Glomus sp. treatment together with the rhizobium showed significant increase (P ?. 0.05) both in shoot dry wt and nodule mass of not Eunhakong but Dajangkong. In red-yellow soils with pH 5.2(1:5H₂O) and 203 mg of Lancaster P per kg of soil, in which 10³ cells of B. japonicum and 10±0.2 spores of mycorrhizae per gram of soil were naturalized, grain yield of G. max cv. Dajangkong was increased to 3.9% by dual inoculation both of 4.8x10<SUP>6</SUP>cells of B. japonicum and 10 spores of mycorrhizae per two seeds under condition applied with 30 kg P₂O5 and 34 kg K₂O per hectare compared to conventionally fertilized plot (2.75 MT ha<SUP>-1</SUP>) added with 30 kg N ha<SUP>-1</SUP>. However, there was not significant.