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Su-Hwan Lee,Hui-Su Bae,Yang-Yeol Oh,Sang-Hun Lee,Yeong-Joo Kim,Sun Kim,Jin-Hee Ryu,Kang-Ho Jung,Choong-Geun Lee,Jae-Hyeon Kim,Yeong-Doo Kim,Weon-Young Choi,Jae-Yeong Cho,Kyoung-Bo Lee,Keon-Hui Lee,Ki- 한국토양비료학회 2016 한국토양비료학회지 Vol.49 No.6
It is known that the poor soil fertility of newly reclaimed saline soils is due to the lack of organic matter and available mineral nutrients for crop production. The effect of green manuring with Sesbania aculeata in combination with five rates of urea-N treatments (N0. N25, N50, N75, N100) on the productivity of a subsequent whole-crop barley and the fertility of the reclaimed saline soil in Saemangeum was evaluated in the field during 2013-2014 growing season. Sesbania was grown during summer season (June to October). The amount of Sesbania incorporated was 16.2 Mg ha<SUP>-1</SUP>. Sesbania contributed to 393 kg N ha<SUP>-1</SUP> to the soils when ploughed down and incorporated before whole-crop barley cultivated. The performances of whole-crop barley following sesbania incorporation were significantly affected by a combination of Sesbania manuring and different N rates. The N fertilizer equivalence without N fertilizer following Sesbania was 42.6% (63.9 kgN ha<SUP>-1</SUP>), compared with N100(150 kg N ha<SUP>-1</SUP>) in fallow soils. The whole-crop barley yield responded to N fertilizer rates in both sesbaniaamended and fallow soil. The yield response to nitrogen rates in fallow soil was linear (Y=0.0586X+3.3011, R<SUP>2</SUP> =0.9534), whereas that in sesbania-amended soils was quadratic (Y= -0.001X<SUP>2</SUP>+0.1322X+5.7143, R<SUP>2</SUP>=0.9576). The yield of whole-crop barley in sesbania-amended with increasing N rates was increased up to SN75 (115 kgN) 10.3 Mg ha<SUP>-1</SUP>. Apparent N recovery (ANR) of whole-crop barely showed decreased with sesbania plus increasing rates of N fertilizer. Despite higher yield with sesbania manuring plus increasing N rates, the contributions of N from Sesbania with increasing N rates to whole-crop barley were decreased, whereas those from fertilizer increment due to excessively mineralized Nitrogen. Considering yield, ANR, N contribution from Sesbania and nitrogen fertilizer, the optimum N rate was N50 rate following sesbania incorporation.
Su-hwan Lee,Pyeong Shin,Hui-su Bae,Jang-Hee Lee,Yang-Yeol Oh,Sang-Hun Lee,Tae-Hwan Rho,Beom-Heon Song,Jae-Yeong Cho,Kyoung-Bo Lee,Keon-Hui Lee,Ki-Hoon Park 한국토양비료학회 2014 한국토양비료학회지 Vol.47 No.6
Newly reclaimed tidal land is known to be in low status of soil fertility. The incorporation of crop residue is an effective method to improve soil properties and fertility in reclaimed saline soils. The objective of this study was to evaluate the efficiency of rice straw (RS) application to improve physico-chemical properties of saline-sodic soil and its contribution to productivity of whole crop barley. Increasing rate of rice straw improved growth parameter related to yield of whole crop barley, which increased tiller number significantly (p<0.05).The yield increased by 15% (F.W) and 9% (D.W) in rice straw-amended plots. The content of soil organic matter (SOM) in the surface soil (0-20cm) with rice straw incorporation increased by 5~9% (RS 2.5~RS 7.5) compared to RS 0, in which the content of SOM decreased after two consecutive cultivations. Rice straw incorporation promoted soil physico-chemical properties and nutrient-availability of the test crop, as indicated in change in soil bulk density, porosity and increased nutrient uptake of plant. Especially, the P content and uptake of whole crop barley increased with increasing the rate of rice straw application. In conclusion, the rice straw application at rates of 5.0-7.5 ton·ha<SUP>-1</SUP> in reclaimed saline soils effectively improved soil properties and crop productivity, which has potentials to reduce the loss of chemical fertilizers and facilitate the favorable condition for crop growth under adverse soil condition.
Yang, Su Hui,Song, Chin-Hee,Van, Hue Thi My,Park, Eunsook,Khadka, Daulat Bikram,Gong, Eun-Yeung,Lee, Keesook,Cho, Won-Jea American Chemical Society 2013 Journal of medicinal chemistry Vol.56 No.8
<P>Molecular knowledge of pure antagonism and systematic SAR study offered a direction for structural optimization of DIMN to provide nicotinamides as a novel series of AR antagonists. Nicotinamides with extended linear scaffold bearing sterically bulky alkoxy groups on isoquinoline end were synthesized for H12 displacement. AR binding affinity and molecular basis of antiandrogenic effect establish the optimized derivatives, <B>7au</B> and <B>7bb</B>, as promising candidates of second generation AR antagonists for advanced prostate cancer.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jmcmar/2013/jmcmar.2013.56.issue-8/jm3014103/production/images/medium/jm-2012-014103_0011.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/jm3014103'>ACS Electronic Supporting Info</A></P>
Development of 3-aryl-1isoquinolinamines as potent antitumor agents based on CoMFA
( Su Hui Yang ),( Hue Thi My Van ),( Thanh Nguyen Le ),( Daulat Bikram Khadka ),( Suk Hee Cho ),( Kyung Tae Lee ),( Eung Seok Lee ),( Young Bok Lee ),( Chang Ho Ahn ),( Won Jea Cho ) 영남대학교 약품개발연구소 2011 영남대학교 약품개발연구소 연구업적집 Vol.21 No.-