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Effects of Excess Copper on Germination and Growth of Maize Plants
Shin, Ji Su(신지수),Kyo Sung Lee(이교석),Dong Sung Lee(이동성),Dae Sung Jeon(전대성),Youn K Lee(이연경),Misuk Park(박미숙),Ji W. Goo(구지원),Soo B. Kim(김수빈),Na Won Park(박나원),Ye Jin Park(박예진),So Jeong Kim(김소정),Bo Koung Lee 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.10
Influence of Hydrofluoric Acid on Soil Microorganisms and Physicochemical Properties of Soils
Lee, Youn Koung(이연경),Dong Sung Lee(이동성),Kyo Suk Lee(이교석),Dae Sung Jeon(전대성),Mi suk Park(박미숙),Ji Su Shin(신지수),Ji Won Goo(구지원),Soo Bin Kim(김수빈),Na Won Park(박나원),Ye Jin Park(박예진),So Jin Kim(김소정),Bo Koung 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.10
심호영 ( Ho Young Shim ),이교석 ( Kyo Suk Lee ),이동성 ( Dong Sung Lee ),전대성 ( Dae Sung Jeon ),박미숙 ( Mi Suk Park ),신지수 ( Ji Su Shin ),이연경 ( Yun Koung Lee ),구지원 ( Ji Won Goo ),김수빈 ( Soo Bin Kim ),송승근 ( Seong Ge 한국환경농학회 2014 한국환경농학회지 Vol.33 No.3
BACKGROUND: Increase in application of liquid pigmanure(LPM) in agriculture as nutritional source hasbecome a social issue due to its influence on water quality. Also, proper application methods have not been developedwith respect to indigenous properties of LPM and soilphysical properties. Therefore, we conducted thisexperiment to observe the infiltration characteristics anddistribution of dissolved organic compounds of LPM insoils having different soil textures. METHODS AND RESULTS: To do this experiment, wecollected three different soils and LPM. We analyzed thephysical and chemical properties of both soils and LPM todetermine the dilution ratios of LPM. The LPM diluted to 4different ratios with distilled water was applied to the top ofsoil column. Infiltration rates were observed by time anddepth until the amount of effluent collected from the bottomof the soil columns were stabilized while maintaining thehydraulic head 3 cm above the soil column. The resultsshowed that infiltration rates increased with increasingdilution ratios in the order of sandy, loamy sand, and sandyloam> The time required to reach steady state was increasedwith decreasing sand contents clay. CONCLUSION: The size and amount of the dissolvedorganic compounds in LPM that can determine theefficiency as fertilizer and environmental problems asnonpoint pollution source in water quality have not beeninvestigated with respect to behavior and transport of themin soil. Therefore, it requires further research how we canproperly apply LPM as valuable fertilizer substitute forinorganic fertilizers.