http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
계분톱밥 퇴비화시 악취발생의 최소화를 위한 적정 공기주입을 구명
강항원(Hang Won Kang),박향미(Hyang Mee Park),고지연(Jee Yeon Ko),김민태(Min Tae Kim),강위금(Ui Gum Kang),이동창(Dong Chang Lee),문헌팔(Huhn Pal Moon),이재생(Jae Saeng Lee) 한국환경농학회 2001 한국환경농학회지 Vol.20 No.4
This study was conducted to find out the optimal aeration rates for minimizing odor emission and for increasing biological activities during composting of livestock manure in the enclosed bench-scale reactor system. It was treated with the mixture of poultry manure and sawdust controlled the initial water content of 60%, then aerated continuously at four different aeration rates (0.1, 0.2, 0.4 and 0.6 L/min/㎏ dry-solids). The average emitted concentration of ammonia in 0.6 L/min/㎏ dry-solids during composting reached the level of 40% in comparison with that of 0.2 L/min/㎏ dry-solids. In cases of sulfur compounds such as hydrogen sulfide, methylmercaptan and methylmercaptan, their concentrations decreased with increasing aeration rates and the emission time was shortened. But they didn`t detect in the treatment of 0.6 L/min/㎏ dry-solids. The biological activity for composting showed a trend of increasing as aeration rates increased. The treatment of 0.6 L/min/㎏ dry-solids gave the highest biological activity and the best compost quality.
밀폐형 Bench - scale reactor 에서의 우분 퇴비화시 Aeration 이 생물학적 활성에 미치는 영향
강항원 ( Hang Won Kang ),( Ruihong Zhang ),박향미 ( Hyang Mee Park ),고지연 ( Jee Yeon Ko ),이인구 ( In Koo Rhee ),박경배 ( Kyeong Bae Pak ) 한국환경농학회 1998 한국환경농학회지 Vol.17 No.3
This experiment used the enclosed bench-scale reactors of 242 liters was conducted to obtain basic data on temporal and spatial variations in temperature, oxygen and moisture content, which were important factors of biological activities, during composting of mixture of dairy manure and rice straw. The reactors with thermocouples, oxygen sensor and datalogger were aerated at four different rates of 0.09, 0.18, 0.90 and 1.79ℓmin^(-1) ㎏ dry solids^(-1). The higher aeration rates were, the faster the rates of increase and decrease in composting temperature were in both of initial and turnover stage, and the smaller the temperature difference between exhaust air and composting materials. Composting temperature of initial stage increased suddenly in all aeration rates, then stationary phase of temperature in materials and exhaust air showed at 50∼53℃ for 5 hours and at 45℃ between 5 and 15 hours, respectively. In initial stage the maximum temperature was decreased with increasing aeration rates but in the stage after turnover it was the opposite except for 1.79ℓmin^(-1)㎏^(-1). Time arrived at the maximum temperature of composting materials was later in low-aeration rates than high-aeration rates at both stages. Time maintained high-temperature more than 45℃ was rapidly decreased with increasing aeration rates. In initial stage of composting maintaining time of 65℃ or more was the longest in the treatments of 0.09 and 0.18ℓmin^(-1)㎏^(-1), while those of 55∼65℃ and 45∼55℃ was in 0.90 and 1.79ℓmin^(-1)㎏^(-1), respectively. The minimum oxygen content and the maximum oxygen consumption rate in exhaust air through composting materials showed the increased trends with increasing aeration rates. In initial stage the minimum oxygen content was ranged from 0.9% to 7.4% for 32 to 59.5 hours and the maximum oxygen consumption rate was 1.89∼6.48gh^(-1)㎏VS^(-1). In the stage after turnover their levels were 2.1∼19.9% and 1.76∼3.49g/h-㎏ VS, respectively, for 16 to 49.5 hours.