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Dr. Taek-Keun Oh
Department of Bio-environmental Chemistry, College of Agriculture and Life Sciences, Chungnam national university

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0 Biochar
0 Compost
0 biomass volarization
0 agro-environmental chemistry
0 climate change and greenhouse gas emissions

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Journal article
Published: 20 August 2021 in Agronomy
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There is a paucity of data regarding the effect of nutrient-enriched biochar amendments on nutrient dynamics in both soil and crops. This is important because unlike pristine biochar, nutrient-enriched biochar is applied to the soil in minute quantities as large amounts may led to over application of the nutrients loaded in it. The current study examined the effects of both phosphorus- and nitrogen-enriched biochars on the dynamics of both macro and micronutrients in the sandy soil and leaf lettuce grown thereon. The phosphorus enrichment followed co-pyrolysis of animal manure (cow dung) with 25% and 50% bone meal (w/w), while the nitrogen enrichment was achieved by soaking the co-pyrolyzed biochar into urea and urea-hydrogen peroxide. The performances of the nutrient-enriched biochar were compared with the conventional amendment of urea and triple superphosphate (TSP) in the production of leaf lettuce over a period of two seasons in a pot experiment. The nutrient-enriched biochar amendments resulted into higher microbial biomass carbon and carbon to nitrogen ratios than the conventional amendment. The conventional amendment caused more phosphorus, potassium, and magnesium accumulations in the leaf lettuce than the nutrient-enriched biochar amendments. The nutrient-enriched biochar amendments led to more accumulations of nitrogen, calcium, and micronutrient elements in the leaf lettuce and availabilities of all the nutrient elements in the soil and thus, nutrient-enriched biochar acted as a reservoir that could provide nutrients to the growing lettuce beyond a single growing season.

ACS Style

Deogratius Luyima; Michael Egyir; Yeo-Uk Yun; Seong-Jin Park; Taek-Keun Oh. Nutrient Dynamics in Sandy Soil and Leaf Lettuce Following the Application of Urea and Urea-Hydrogen Peroxide Impregnated Co-Pyrolyzed Animal Manure and Bone Meal. Agronomy 2021, 11, 1664 .

AMA Style

Deogratius Luyima, Michael Egyir, Yeo-Uk Yun, Seong-Jin Park, Taek-Keun Oh. Nutrient Dynamics in Sandy Soil and Leaf Lettuce Following the Application of Urea and Urea-Hydrogen Peroxide Impregnated Co-Pyrolyzed Animal Manure and Bone Meal. Agronomy. 2021; 11 (8):1664.

Chicago/Turabian Style

Deogratius Luyima; Michael Egyir; Yeo-Uk Yun; Seong-Jin Park; Taek-Keun Oh. 2021. "Nutrient Dynamics in Sandy Soil and Leaf Lettuce Following the Application of Urea and Urea-Hydrogen Peroxide Impregnated Co-Pyrolyzed Animal Manure and Bone Meal." Agronomy 11, no. 8: 1664.

Review
Published: 05 April 2021 in International Journal of Environmental Science and Technology
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Agricultural operations and processes generate copious quantities of particulate matter (PM) both directly and indirectly through emissions of PM precursor gases with dire consequences for human health, environment and climate. PM emissions from agricultural activities are projected to continually rise in the light of soaring food demand driven by a ballooning global population, and thus, plausible measures are needed to combat them. Recently, interest in using biochar to attenuate PM emissions of agricultural origin, especially the secondary PM precursors, has gained traction and this review study is purposed to examine the capacity of the technology to curb the agricultural-related PM emissions basing on observations made in the previously concluded studies. The study gives a brief overview of the effects of PM and delineates its weighty agricultural sources plus detailing whether and how the pyrolysis technology and biochar as its product can help to alleviate the emissions. Additional discussions address the looming dilemma of biochar applications becoming a PM emission problem and the techniques that should be applied to ensure its sustainable usage. It is overwhelmingly clear from the studies reviewed that pyrolysis and resultant biochar have an enormous potential to attenuate PM from agriculture if adequately utilised.

ACS Style

D. Luyima; M. Egyir; J.-H. Lee; J.-H. Yoo; T.-K. Oh. A review of the potentiality of biochar technology to abate emissions of particulate matter originating from agriculture. International Journal of Environmental Science and Technology 2021, 1 -18.

AMA Style

D. Luyima, M. Egyir, J.-H. Lee, J.-H. Yoo, T.-K. Oh. A review of the potentiality of biochar technology to abate emissions of particulate matter originating from agriculture. International Journal of Environmental Science and Technology. 2021; ():1-18.

Chicago/Turabian Style

D. Luyima; M. Egyir; J.-H. Lee; J.-H. Yoo; T.-K. Oh. 2021. "A review of the potentiality of biochar technology to abate emissions of particulate matter originating from agriculture." International Journal of Environmental Science and Technology , no. : 1-18.

Journal article
Published: 20 January 2021 in Applied Biological Chemistry
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The need for organic soil amendments is increasing in the Republic of Korea against the backdrop of increased soil acidification and nutrient losses. The pyrolysis of biomass produces biochar which not only increases soil productivity but also provides environmental benefits through carbon sequestration. The portion of the brewer’s spent grain (BSG) recycled is by far less than the amount generated, but pyrolysis can help to reverse this trend by turning BSG waste into a valuable soil amendment. The current study, therefore, evaluated the effects of brewer’s spent grain biochar (BBXXX) produced at three different temperatures of 300 °C, 500 °C and 700 °C on the yield and quality characteristics of the leaf lettuce as well as the effects on soil chemical properties through a pot experiment. Each of the BBXXXand BSG were added to the soil at two rates of 2% and 5% by weight. The pH and carbon content of the BBxxx increased with increasing pyrolysis temperatures and the trend was replicated in the soil upon biochar application i.e. the soil pH and carbon content increased alongside temperatures at which biochar was pyrolyzed. On the other hand, however, the soil electrical conductivity (EC) diminished with the increasing pyrolysis temperatures of the biochar applied. With regards to crop growth, the BB5005% amendment produced the highest marketable yield of the leaf lettuce and while the lettuce grown on the control produced leaf lettuce with the lowest content of nitrate nitrogen, BB5005% amendment generally produced the highest quality lettuce. The results indicate that BB500performed agronomically better than the rest of the amendments and is thus recommended as an effective BSG recycling measure.

ACS Style

Jun-Hyuk Yoo; Deogratius Luyima; Jae-Han Lee; Seong-Yong Park; Jun-Woo Yang; Ji-Young An; Yeo-Uk Yun; Taek-Keun Oh. Effects of brewer’s spent grain biochar on the growth and quality of leaf lettuce (Lactuca sativa L. var. crispa.). Applied Biological Chemistry 2021, 64, 1 -10.

AMA Style

Jun-Hyuk Yoo, Deogratius Luyima, Jae-Han Lee, Seong-Yong Park, Jun-Woo Yang, Ji-Young An, Yeo-Uk Yun, Taek-Keun Oh. Effects of brewer’s spent grain biochar on the growth and quality of leaf lettuce (Lactuca sativa L. var. crispa.). Applied Biological Chemistry. 2021; 64 (1):1-10.

Chicago/Turabian Style

Jun-Hyuk Yoo; Deogratius Luyima; Jae-Han Lee; Seong-Yong Park; Jun-Woo Yang; Ji-Young An; Yeo-Uk Yun; Taek-Keun Oh. 2021. "Effects of brewer’s spent grain biochar on the growth and quality of leaf lettuce (Lactuca sativa L. var. crispa.)." Applied Biological Chemistry 64, no. 1: 1-10.

Journal article
Published: 31 October 2020 in Applied Biological Chemistry
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Sawdust is the main bulking agent used to compost food waste in Korea but it is not an economically desirable choice because its availability entirely depends on imports. Since food waste composting provides agricultural, environmental and economic benefits, it is vital that we search for suitable replacements to sawdust from the locally available materials. In this study, we assessed the composting characteristics of food waste amended with various bulking agents including sawdust, ginkgo leaves, insect feces, and mushroom waste. Each of the bulking agents was mixed with the food waste in ratios of 3:7, respectively. Even though the initial temperatures were highest in the mixture of the food waste and insect feces whose temperature stood at 65 °C against 39, 58 and 51 °C in the sawdust, ginkgo leaves and mushroom waste mixtures, respectively on the third day of the experiment (DAT 3), it was terminated on the 21st day (DAT 21) because of excessively high water content (70.92%). The water content of the composted food waste supplemented with sawdust, mushroom waste, and ginkgo leaves stood at 51.28, 39.81, and 44.92%, respectively at the end of the experiment and therefore, the fully mature composts satisfied the water content requirement of less than 55% established by the Rural Development Agency of the ministry of Agriculture of Korea. The results of the CoMMe-101, Solvita and seed germination index indicated that the composted food waste amended with the mushroom waste and ginkgo leaves matured relatively quicker than that of the sawdust amendment. Based on the above observations, it is clear that the mushroom waste and ginkgo leaves are actually more effective bulking agents than the sawdust and as such, are recommended as suitable replacements for sawdust in food waste composting.

ACS Style

Jae-Han Lee; Deogratius Luyima; Chang-Hoon Lee; Seong-Jin Park; Taek-Keun Oh. Efficiencies of unconventional bulking agents in composting food waste in Korea. Applied Biological Chemistry 2020, 63, 1 -7.

AMA Style

Jae-Han Lee, Deogratius Luyima, Chang-Hoon Lee, Seong-Jin Park, Taek-Keun Oh. Efficiencies of unconventional bulking agents in composting food waste in Korea. Applied Biological Chemistry. 2020; 63 (1):1-7.

Chicago/Turabian Style

Jae-Han Lee; Deogratius Luyima; Chang-Hoon Lee; Seong-Jin Park; Taek-Keun Oh. 2020. "Efficiencies of unconventional bulking agents in composting food waste in Korea." Applied Biological Chemistry 63, no. 1: 1-7.

Original article
Published: 12 September 2020 in Journal of Material Cycles and Waste Management
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Formulating biochar-based nitrogen fertilisers from charred livestock manure and urea, the two largest emitters of ammonia (NH3) may help to abate particulate matter emitted from agricultural operations. However, animal manure biochar inadequately retains carbon, thus impairing its primary role of carbon sequestration. Co-pyrolysis of animal manure with phosphorus (P) may improve quality of the biochar, but with the phosphate rock reserves expected to vanish soon, a shift to renewable P sources is desirable. Bone waste is laden with P and can be a viable replacement of the phosphate rock. In the current study, we assessed the efficiency of bone waste as a P source in the co-pyrolysis of cow dung and quantified the NH3 emitting potentials of the biochar-based urea and UHP fertilisers formulated with the co-pyrolysed biochar. Co-pyrolysis of cow dung with bone waste increased yield and carbon retentions of biochar and boosted biochar’s capacity to attenuate NH3 emissions. UHP fertilisers formulated from the co-pyrolysed biochar lessened NH3 evolutions by as high as 85.93% and were more effective in reducing NH3 volatilisations than co-pyrolysed biochar-based urea fertilisers.

ACS Style

Deogratius Luyima; Jae-Han Lee; Jwakyung Sung; Taek-Keun Oh. Co-pyrolysed animal manure and bone meal-based urea hydrogen peroxide (UHP) fertilisers are an effective technique of combating ammonia emissions. Journal of Material Cycles and Waste Management 2020, 22, 1887 -1898.

AMA Style

Deogratius Luyima, Jae-Han Lee, Jwakyung Sung, Taek-Keun Oh. Co-pyrolysed animal manure and bone meal-based urea hydrogen peroxide (UHP) fertilisers are an effective technique of combating ammonia emissions. Journal of Material Cycles and Waste Management. 2020; 22 (6):1887-1898.

Chicago/Turabian Style

Deogratius Luyima; Jae-Han Lee; Jwakyung Sung; Taek-Keun Oh. 2020. "Co-pyrolysed animal manure and bone meal-based urea hydrogen peroxide (UHP) fertilisers are an effective technique of combating ammonia emissions." Journal of Material Cycles and Waste Management 22, no. 6: 1887-1898.

Journal article
Published: 09 September 2020 in Applied Biological Chemistry
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Co-pyrolysis of animal manure biomass with bone meal (BM) and soaking of the resultant biochar in urea containing solutions may offer a sustainable and cheap way of formulating slow-release nitrogen (N) and phosphorus (P) fertilisers. This method can lead to optimisation of the carbon sequestration capacity of the biochar, abatement of environmental pollution by P and N and alleviation of the severity of the projected future scarcity of P. A few studies have indicated that sorption can create efficient slow-release fertilisers although all of them utilised charged moieties such as ammonium ions to formulate them and as a result, there is a paucity of data concerning the efficiency of fertilisers formulated using uncharged compounds like urea. It’s against that background that we examined the possibility of leveraging co-pyrolysis and sorption with urea containing solutions to formulate slow-release N and P fertilisers along with assessing the agronomic efficiency of the formulated fertilisers through cultivating lettuce in pots for two seasons. Both urea-hydrogen peroxide (UHP) and urea were utilised as N sources. UHP (CDBM-UHP) and urea (CDBM-Urea) containing biochars averagely released 64.40% and 87.00% of the added N, respectively over the 28-day incubation period with the amount of N released decreasing with increasing concentrations of BM in the biochar. Lettuce yields and nutrient use efficiencies of N and P were higher in the CDBM-UHP than in the CDBM-Urea treatments. It’s therefore clear that sorption of UHP by BM containing biochar concomitantly slows-down releases of N and P and boosts the agronomic efficiency of the fertilisers.

ACS Style

Deogratius Luyima; Jwakyung Sung; Jae-Han Lee; Seong-Ah Woo; Seong-Jin Park; Taek-Keun Oh. Sorption of urea hydrogen peroxide by co-pyrolysed bone meal and cow dung slowed-down phosphorus and nitrogen releases but boosted agronomic efficiency. Applied Biological Chemistry 2020, 63, 1 -11.

AMA Style

Deogratius Luyima, Jwakyung Sung, Jae-Han Lee, Seong-Ah Woo, Seong-Jin Park, Taek-Keun Oh. Sorption of urea hydrogen peroxide by co-pyrolysed bone meal and cow dung slowed-down phosphorus and nitrogen releases but boosted agronomic efficiency. Applied Biological Chemistry. 2020; 63 (1):1-11.

Chicago/Turabian Style

Deogratius Luyima; Jwakyung Sung; Jae-Han Lee; Seong-Ah Woo; Seong-Jin Park; Taek-Keun Oh. 2020. "Sorption of urea hydrogen peroxide by co-pyrolysed bone meal and cow dung slowed-down phosphorus and nitrogen releases but boosted agronomic efficiency." Applied Biological Chemistry 63, no. 1: 1-11.

Journal article
Published: 31 December 2019 in Journal of Climate Change Research
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Nitrous oxide (N₂O), a greenhouse gas, influences global warming 295 times more than carbon dioxide does. N inputs applied to croplands including fertilizers and organic amendments are a major source of N₂O emission. However, studies on N₂O‐emanating organic amendments applied to croplands for improving soil fertility, especially livestock manure, are limited. Therefore, this study was conducted to measure N₂O emission from sweet potato fields amended with livestock manure composts over a one‐year period. Three types of compost, cattle manure compost (CMC), swine manure compost (SMC), and poultry manure compost (PMC) were each added at rates of 10 and 20 Mg per hectare, and then the same amount of synthetic fertilizer was added to all treatments. N2O flux from fertilized soils was measured for one year, beginning in April 2018. The cumulative N₂O flux from NPK, NPK+CMC 10 Mg ha‐1, NPK+SMC 10 Mg ha‐1, and NPK+PMC 10 Mg ha‐1 was 2.9, 5.5, 8.0, and 3.7 kg N2O‐N ha‐1 y‐1, respectively. The cumulative N₂O flux from NPK+CMC 20 Mg ha‐1, NPK+SMC 20 Mg ha‐1, and NPK+PMC 20 Mg ha‐1 was 10.0, 14.7, and 5.8 kg N₂O‐N ha‐1 y‐1, respectively. Soil treated with SMC emitted the largest quantities of N₂O amongst the three composts. N₂O emission factors from soils fertilized with CMC and SMC did not differ significantly from one another on the other hand, the emission factor from PMC was the lowest. A positive correlation was found between N₂O emission and water‐filled pore space, with N₂O emission drastically increasing at a WFPS >50%.

ACS Style

Eunjung Choi; Gunyeob Kim; Sun Il Lee; Hyuncheol Jeong; Jongsik Lee; HyoSuk Gwon; Taekguen Oh. Estimation of Nitrous Oxide Emission from Different Livestock Manure Composts Applied to Cropland. Journal of Climate Change Research 2019, 10, 325 -332.

AMA Style

Eunjung Choi, Gunyeob Kim, Sun Il Lee, Hyuncheol Jeong, Jongsik Lee, HyoSuk Gwon, Taekguen Oh. Estimation of Nitrous Oxide Emission from Different Livestock Manure Composts Applied to Cropland. Journal of Climate Change Research. 2019; 10 (4):325-332.

Chicago/Turabian Style

Eunjung Choi; Gunyeob Kim; Sun Il Lee; Hyuncheol Jeong; Jongsik Lee; HyoSuk Gwon; Taekguen Oh. 2019. "Estimation of Nitrous Oxide Emission from Different Livestock Manure Composts Applied to Cropland." Journal of Climate Change Research 10, no. 4: 325-332.

Article
Published: 11 October 2018 in Applied Biological Chemistry
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We analyzed the contents of 38 primary metabolites and 9 minerals in the leaves and roots of bell pepper (Capsicum annuum L. var. angulosum) to study metabolic responses to deficiency in nitrogen, phosphorus, potassium, calcium, or magnesium. Induced deficiencies of individual cations reduced the abundance of the other cations in both leaves and roots. Each nutrient-deficient condition was clearly grouped by principal component analysis, which also showed that leaves under cation-deficiency treatments were separated from those under non-cation-deficiency treatments. This was consistent with that a single cation deficiency decreased the levels of the other cations in leaves. Specifically, N deficiency reduced amino acids and organic acids in both tissues. The common response to P-, K-, Ca- or Mg-deficient conditions showed significant increases in the levels of amino acids in both tissues and organic acids in the roots. In the leaves, P- or Mg-deficient conditions reduced organic acids. Soluble carbohydrates were significantly increased under N-, K-, Ca- or Mg-deficient conditions in the leaves, whereas in roots under K deficiency. Notably, the level of γ-aminobutyric acid, an amino acid that helps protect against biotic and abiotic stresses, was increased threefold in leaves under K-deficient conditions and sixfold in roots under P-, K-, Ca-, or Mg-deficient conditions. These findings provide additional information about variations in metabolite and mineral abundance in bell pepper leaves and roots in response to mineral shortage.

ACS Style

Yangmin X. Kim; Tae Jin Kim; Yejin Lee; Seulbi Lee; DeogBae Lee; Taek-Keun Oh; Jwakyung Sung. Metabolite profiling and mineral nutrient analysis from the leaves and roots of bell pepper (Capsicum annuum L. var. angulosum) grown under macronutrient mineral deficiency. Applied Biological Chemistry 2018, 61, 661 -671.

AMA Style

Yangmin X. Kim, Tae Jin Kim, Yejin Lee, Seulbi Lee, DeogBae Lee, Taek-Keun Oh, Jwakyung Sung. Metabolite profiling and mineral nutrient analysis from the leaves and roots of bell pepper (Capsicum annuum L. var. angulosum) grown under macronutrient mineral deficiency. Applied Biological Chemistry. 2018; 61 (6):661-671.

Chicago/Turabian Style

Yangmin X. Kim; Tae Jin Kim; Yejin Lee; Seulbi Lee; DeogBae Lee; Taek-Keun Oh; Jwakyung Sung. 2018. "Metabolite profiling and mineral nutrient analysis from the leaves and roots of bell pepper (Capsicum annuum L. var. angulosum) grown under macronutrient mineral deficiency." Applied Biological Chemistry 61, no. 6: 661-671.

Article
Published: 26 July 2018 in Applied Biological Chemistry
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The amount of vegetable waste (VW) has increased, and demand for good quality of organic soil amendment is high. For these reasons, successive composting technique was tried to examine the possibility of increasing nitrogen contents in the compost. Collected VW was initially composted after mixing with either sawdust (SD) or cocopeat (CP) at different ratios (30–50% of SD or CP). After finishing the first composting cycle, finished compost was mixed with fresh VW at various ratios (10–30% of VW) for the second cycle of composting. Temperature, pH, electrical conductivity (EC), organic matter (OM) content, and carbon/nitrogen ratio (C/N ratio) were monitored, and compost maturity, phytotoxicity, nutrient contents and heavy metal concentration of the final compost in the second cycle of composting were measured. Temperature profiles of the first and second composts showed typical composting processes, and temperature was increased up to the range of 55–68 °C in both the first and second compost during the thermophilic period. Other chemical properties such as pH (6.60–9.10), EC (1.36–2.86 dS m−1), and OM content (49.40–64.04%) were within the ranges of typical composts. The nitrogen content (1.76–2.28%) was increased when successive composting technique was adapted. After finishing the second composting, average nitrogen content was increased at the range of 9.4–32.4% compared to the first cycle of compost. The maturity test showed that all the composts satisfied criteria of maturity level and concentration of hazardous heavy metal was below the threshold value in Korea. In conclusion, VW could be recycled to make organic soil amendment and successive composting process is an efficient technique to increase the nitrogen contents in the compost.

ACS Style

Eui Yeong Kim; Young Kyu Hong; Chang Hoon Lee; Taek Keun Oh; Sung Chul Kim. Effect of organic compost manufactured with vegetable waste on nutrient supply and phytotoxicity. Applied Biological Chemistry 2018, 61, 509 -521.

AMA Style

Eui Yeong Kim, Young Kyu Hong, Chang Hoon Lee, Taek Keun Oh, Sung Chul Kim. Effect of organic compost manufactured with vegetable waste on nutrient supply and phytotoxicity. Applied Biological Chemistry. 2018; 61 (5):509-521.

Chicago/Turabian Style

Eui Yeong Kim; Young Kyu Hong; Chang Hoon Lee; Taek Keun Oh; Sung Chul Kim. 2018. "Effect of organic compost manufactured with vegetable waste on nutrient supply and phytotoxicity." Applied Biological Chemistry 61, no. 5: 509-521.

Journal article
Published: 27 February 2018 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Jaekyoung Noh; Jaenam Lee; Yoshiyuki Shinogi; Taek-Keun Oh. Simulating Daily Runoff in Hydrologic Standard Basin Considering Agricultural Reservoir Operation. Journal of the Faculty of Agriculture, Kyushu University 2018, 63, 119 -130.

AMA Style

Jaekyoung Noh, Jaenam Lee, Yoshiyuki Shinogi, Taek-Keun Oh. Simulating Daily Runoff in Hydrologic Standard Basin Considering Agricultural Reservoir Operation. Journal of the Faculty of Agriculture, Kyushu University. 2018; 63 (1):119-130.

Chicago/Turabian Style

Jaekyoung Noh; Jaenam Lee; Yoshiyuki Shinogi; Taek-Keun Oh. 2018. "Simulating Daily Runoff in Hydrologic Standard Basin Considering Agricultural Reservoir Operation." Journal of the Faculty of Agriculture, Kyushu University 63, no. 1: 119-130.

Journal article
Published: 27 February 2018 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Hyeon–Ji Song; Jae–Han Lee; Su-Hun Kim; Ho–Cheol Lee; Yoshiyuki Shinogi; Taek-Keun Oh. Effect of Biochar Derived from Coffee Sludge on Growth of Chinese Cabbage (Brassica campestris L. ssp. pekinensis) in Field Soil and Bed Soil. Journal of the Faculty of Agriculture, Kyushu University 2018, 63, 131 -137.

AMA Style

Hyeon–Ji Song, Jae–Han Lee, Su-Hun Kim, Ho–Cheol Lee, Yoshiyuki Shinogi, Taek-Keun Oh. Effect of Biochar Derived from Coffee Sludge on Growth of Chinese Cabbage (Brassica campestris L. ssp. pekinensis) in Field Soil and Bed Soil. Journal of the Faculty of Agriculture, Kyushu University. 2018; 63 (1):131-137.

Chicago/Turabian Style

Hyeon–Ji Song; Jae–Han Lee; Su-Hun Kim; Ho–Cheol Lee; Yoshiyuki Shinogi; Taek-Keun Oh. 2018. "Effect of Biochar Derived from Coffee Sludge on Growth of Chinese Cabbage (Brassica campestris L. ssp. pekinensis) in Field Soil and Bed Soil." Journal of the Faculty of Agriculture, Kyushu University 63, no. 1: 131-137.

Journal article
Published: 27 February 2018 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Thi Hien Le; Taek-Keun Oh; Ok Jae Won; Yoshiyuki Shinogi; Jeung Ju Lee; Kee Woong Park; Jung–Sung Chung. Allelopathic Suppression of Sorghum bicolor (L.) Moench Shoot Extracts on Weed Germination and on Weeds Treated by Foliar Application. Journal of the Faculty of Agriculture, Kyushu University 2018, 63, 21 -25.

AMA Style

Thi Hien Le, Taek-Keun Oh, Ok Jae Won, Yoshiyuki Shinogi, Jeung Ju Lee, Kee Woong Park, Jung–Sung Chung. Allelopathic Suppression of Sorghum bicolor (L.) Moench Shoot Extracts on Weed Germination and on Weeds Treated by Foliar Application. Journal of the Faculty of Agriculture, Kyushu University. 2018; 63 (1):21-25.

Chicago/Turabian Style

Thi Hien Le; Taek-Keun Oh; Ok Jae Won; Yoshiyuki Shinogi; Jeung Ju Lee; Kee Woong Park; Jung–Sung Chung. 2018. "Allelopathic Suppression of Sorghum bicolor (L.) Moench Shoot Extracts on Weed Germination and on Weeds Treated by Foliar Application." Journal of the Faculty of Agriculture, Kyushu University 63, no. 1: 21-25.

Journal article
Published: 24 February 2017 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Chang Hoon Lee; Ha-Na Kim; Seok-Cheol Kim; Sung Chul Kim; Jwakyung Sung; Yoshiyuki Shinogi; Taek-Keun Oh. Study on Patent Trends for Food Waste Recycling Technology. Journal of the Faculty of Agriculture, Kyushu University 2017, 62, 115 -122.

AMA Style

Chang Hoon Lee, Ha-Na Kim, Seok-Cheol Kim, Sung Chul Kim, Jwakyung Sung, Yoshiyuki Shinogi, Taek-Keun Oh. Study on Patent Trends for Food Waste Recycling Technology. Journal of the Faculty of Agriculture, Kyushu University. 2017; 62 (1):115-122.

Chicago/Turabian Style

Chang Hoon Lee; Ha-Na Kim; Seok-Cheol Kim; Sung Chul Kim; Jwakyung Sung; Yoshiyuki Shinogi; Taek-Keun Oh. 2017. "Study on Patent Trends for Food Waste Recycling Technology." Journal of the Faculty of Agriculture, Kyushu University 62, no. 1: 115-122.

Journal article
Published: 24 February 2017 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Chang Hoon Lee; Kwang-Kyun Ko; Seok-Cheol Kim; Sung Chul Kim; Jwakyung Sung; Yoshiyuki Shinogi; Taek-Keun Oh. Characteristics of Food Waste Composting with Various Particle Sizes of Sawdust. Journal of the Faculty of Agriculture, Kyushu University 2017, 62, 123 -129.

AMA Style

Chang Hoon Lee, Kwang-Kyun Ko, Seok-Cheol Kim, Sung Chul Kim, Jwakyung Sung, Yoshiyuki Shinogi, Taek-Keun Oh. Characteristics of Food Waste Composting with Various Particle Sizes of Sawdust. Journal of the Faculty of Agriculture, Kyushu University. 2017; 62 (1):123-129.

Chicago/Turabian Style

Chang Hoon Lee; Kwang-Kyun Ko; Seok-Cheol Kim; Sung Chul Kim; Jwakyung Sung; Yoshiyuki Shinogi; Taek-Keun Oh. 2017. "Characteristics of Food Waste Composting with Various Particle Sizes of Sawdust." Journal of the Faculty of Agriculture, Kyushu University 62, no. 1: 123-129.

Journal article
Published: 24 February 2017 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Young Chang Kim; Jang Uk Kim; Jung Woo Lee; Ick Hyun Jo; Kyoung Hwan Bang; Dong Hwi Kim; Dong Yun Hyun; Taek-Keun Oh; Yoshiyuki Shinogi; Chanhui Lee. The Classification of the Morphological Characteristics of Aerial Vegetative Tissues in a Large Germplasm Collection of Korean Ginseng (panax sp.). Journal of the Faculty of Agriculture, Kyushu University 2017, 62, 69 -74.

AMA Style

Young Chang Kim, Jang Uk Kim, Jung Woo Lee, Ick Hyun Jo, Kyoung Hwan Bang, Dong Hwi Kim, Dong Yun Hyun, Taek-Keun Oh, Yoshiyuki Shinogi, Chanhui Lee. The Classification of the Morphological Characteristics of Aerial Vegetative Tissues in a Large Germplasm Collection of Korean Ginseng (panax sp.). Journal of the Faculty of Agriculture, Kyushu University. 2017; 62 (1):69-74.

Chicago/Turabian Style

Young Chang Kim; Jang Uk Kim; Jung Woo Lee; Ick Hyun Jo; Kyoung Hwan Bang; Dong Hwi Kim; Dong Yun Hyun; Taek-Keun Oh; Yoshiyuki Shinogi; Chanhui Lee. 2017. "The Classification of the Morphological Characteristics of Aerial Vegetative Tissues in a Large Germplasm Collection of Korean Ginseng (panax sp.)." Journal of the Faculty of Agriculture, Kyushu University 62, no. 1: 69-74.

Journal article
Published: 24 February 2017 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Weiqiang Jia; Ki Seon Hwang; Ok Jae Won; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. Occurrence of Weed Species in Pear Orchards in Chungnam Province of Korea. Journal of the Faculty of Agriculture, Kyushu University 2017, 62, 75 -80.

AMA Style

Weiqiang Jia, Ki Seon Hwang, Ok Jae Won, Taek-Keun Oh, Yoshiyuki Shinogi, Kee Woong Park. Occurrence of Weed Species in Pear Orchards in Chungnam Province of Korea. Journal of the Faculty of Agriculture, Kyushu University. 2017; 62 (1):75-80.

Chicago/Turabian Style

Weiqiang Jia; Ki Seon Hwang; Ok Jae Won; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. 2017. "Occurrence of Weed Species in Pear Orchards in Chungnam Province of Korea." Journal of the Faculty of Agriculture, Kyushu University 62, no. 1: 75-80.

Journal article
Published: 24 February 2017 in Journal of the Faculty of Agriculture, Kyushu University
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ACS Style

Ok Jae Won; Min Young Eom; Young Tae Kim; Shahidul Haque Bir; Tae Seon Park; Romij Uddin; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. Growth Response of Rice and Paddy Weeds Under Elevated Temperatures. Journal of the Faculty of Agriculture, Kyushu University 2017, 62, 63 -67.

AMA Style

Ok Jae Won, Min Young Eom, Young Tae Kim, Shahidul Haque Bir, Tae Seon Park, Romij Uddin, Taek-Keun Oh, Yoshiyuki Shinogi, Kee Woong Park. Growth Response of Rice and Paddy Weeds Under Elevated Temperatures. Journal of the Faculty of Agriculture, Kyushu University. 2017; 62 (1):63-67.

Chicago/Turabian Style

Ok Jae Won; Min Young Eom; Young Tae Kim; Shahidul Haque Bir; Tae Seon Park; Romij Uddin; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. 2017. "Growth Response of Rice and Paddy Weeds Under Elevated Temperatures." Journal of the Faculty of Agriculture, Kyushu University 62, no. 1: 63-67.

Journal article
Published: 20 January 2017 in Plant Omics
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Jwakyung Sung; Hejin Yun; Minji Cho; Jungeun Lim; Seulbi Lee; DeogBae Lee; Taek-Keun Oh. Tissue-specific response of primary metabolites in tomato plants affected by different K nutrition status. Plant Omics 2017, 10, 37 -44.

AMA Style

Jwakyung Sung, Hejin Yun, Minji Cho, Jungeun Lim, Seulbi Lee, DeogBae Lee, Taek-Keun Oh. Tissue-specific response of primary metabolites in tomato plants affected by different K nutrition status. Plant Omics. 2017; 10 (1):37-44.

Chicago/Turabian Style

Jwakyung Sung; Hejin Yun; Minji Cho; Jungeun Lim; Seulbi Lee; DeogBae Lee; Taek-Keun Oh. 2017. "Tissue-specific response of primary metabolites in tomato plants affected by different K nutrition status." Plant Omics 10, no. 1: 37-44.

Journal article
Published: 29 February 2016 in Journal of the Faculty of Agriculture, Kyushu University
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Ok Jae Won; Young Tae Kim; Jung Sup Choi; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. Herbicidal Activity and Mode of Action of Streptomyces scopuliridis Metabolites. Journal of the Faculty of Agriculture, Kyushu University 2016, 61, 47 -51.

AMA Style

Ok Jae Won, Young Tae Kim, Jung Sup Choi, Taek-Keun Oh, Yoshiyuki Shinogi, Kee Woong Park. Herbicidal Activity and Mode of Action of Streptomyces scopuliridis Metabolites. Journal of the Faculty of Agriculture, Kyushu University. 2016; 61 (1):47-51.

Chicago/Turabian Style

Ok Jae Won; Young Tae Kim; Jung Sup Choi; Taek-Keun Oh; Yoshiyuki Shinogi; Kee Woong Park. 2016. "Herbicidal Activity and Mode of Action of Streptomyces scopuliridis Metabolites." Journal of the Faculty of Agriculture, Kyushu University 61, no. 1: 47-51.

Journal article
Published: 29 February 2016 in Journal of the Faculty of Agriculture, Kyushu University
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Jwakyung Sung; Minji Cho; Yeonkyu Sonn; Hejin Yun; Seongsoo Kang; Yoshiyuki Shinogi; Taek-Keun Oh. Mineral Uptake and Soluble Carbohydrates of Lettuce : Effects of Air Temperatures and Mineral Supply Levels. Journal of the Faculty of Agriculture, Kyushu University 2016, 61, 41 -46.

AMA Style

Jwakyung Sung, Minji Cho, Yeonkyu Sonn, Hejin Yun, Seongsoo Kang, Yoshiyuki Shinogi, Taek-Keun Oh. Mineral Uptake and Soluble Carbohydrates of Lettuce : Effects of Air Temperatures and Mineral Supply Levels. Journal of the Faculty of Agriculture, Kyushu University. 2016; 61 (1):41-46.

Chicago/Turabian Style

Jwakyung Sung; Minji Cho; Yeonkyu Sonn; Hejin Yun; Seongsoo Kang; Yoshiyuki Shinogi; Taek-Keun Oh. 2016. "Mineral Uptake and Soluble Carbohydrates of Lettuce : Effects of Air Temperatures and Mineral Supply Levels." Journal of the Faculty of Agriculture, Kyushu University 61, no. 1: 41-46.