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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Soil Science and Fertilizer
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Journal DOI :
Korean Society of Soil Science and Fertilizer
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Volume & Issues
Volume 37, Issue 6 - Dec 2004
Volume 37, Issue 5 - Oct 2004
Volume 37, Issue 4 - Aug 2004
Volume 37, Issue 3 - Jun 2004
Volume 37, Issue 2 - 00 2004
Volume 37, Issue 1 - 00 2004
Selecting the target year
Chemical Properties Distributions of Commercial Organic By-product Fertilizers
Lee, Chang-Ho ; Yoon, Young-Man ; Ok, Yong-Sik ; Lim, Soo-Kil ; Kim, Jeong-Gyu ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 1~6
Agricultural recycling of livestock wastes by composting has lots of beneficial effects on crop production and soil fertility. Most of composts are made from pig manure and water content controller such as saw dust, bark, rice hulls etc. by aerobic processing. But the insufficient supply of saw dust, bark etc. cause the indiscreet use of industrial waste having heavy metals and toxic synthetic chemicals. This research investigated the present quality status of organic by-product fertilizers, and suggested the way of quality interpretation under the statistical approaches based on median, mean and weighted average value. Since the data of one hundred of samples for heavy metal contents (Cd, Pb, Cu, and Cr) and OM/N showed extremely left-skewed distribution, the median was more useful than the mean in representing the characteristics of distribiition for each items. The weighted average value will be a useful index for the quality based on the total amount of producing.
Strontium Stimulates IAA Oxidation and Polyamine Synthesis in Germinating Mung Bean Hypocotyls (Vigna radiata L.)
Kim, Tae-Wan ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 7~13
Mung beans (Vigna radiata L.) were used to investigate the roles of strontium in hypocolyl elongation under IAA regime during the germination. After imbibition in a medium with or without IAA,
stimulated IAA oxidation. Three to five fold increasing in IAA oxidase activity seems to be direct evidence of growth inhibition through
. Furthermore, the accumulation of spermidinc and spermine by
in the range of 1 to 10 mM was observed. Spermidine levels were 2 to 3 fold higher than in control seedling grown without strontium. The increase in polyamine levels was observed on a g fresh weight basis. In conclusion, it was demonstrated that the inhibitory action of
is closely related with the IAA oxidation and polyamine biosynthesis.
Screening of Wintering Cd Hyperaccumulators
Lee, Han-Na ; Ok, Yong-Sik ; Kim, Jeong-Gyu ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 14~18
This study was aimed at searching for the wintering Cd hyperaccumulators as the life cycle of existing hyperaccumulators were mostly from spring to early winter season. The wintering hyperaccumulators can be effective for saving time loss during the winter. A pot experiment was conducted to search for hyperaccumulators through out the native wintering plants. Seven species of native wintering plants were applied; Bromus catharticus, Oxatis corniculata, Festuca rubra, Thlaspi. arvense, Agastache rrgosa, Viola seoulensis, and Patrinia rapestris. Among them, Bromus catharticus and Thlaspi arvense were selected as Cd hyperaccumulators; the two plants accumulated 112.35 and
of Cd in the shoot, respectively.
Influence of Salinity Treatment on Seed Germination and Polyamine Synthesis in Barnyard Grass(Echinochloa hispidula)
Yun, Sol ; Lee, Su-Yeon ; Lim, Hyo-Jin ; Shim, Myoung-Bo ; Sung, Jwa-Kyung ; Kim, Tae-Wan ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 19~24
To illuminate the physiological response to salinity, barnyard grass (Echinochloa hispidula) was germinated with high concentration of NaCl and KCL. Duration and promptness of seed germination were observed. Under salt stress, lipid peroxidation and polyamine biosynthesis were also analyzed. It appeared that high salt treatments per se did not provoke an inhibition of germination although the process of germination was significantly delayed. In context of lipid peroxidation and polyamine biosynthesis, we would imply that barnyard grass is tolerant to salinity. The increase in lipid peroxidation and putrescine content was prolonged only for 1 day after saline treatment. It could be concluded that these early acciimulation of putrescine and production of lipid peroxide seems to be associated with salt tolerance in the short-term. The physiological interest of these responses was discussed.
Effect of UV-B Radiation on the Leaf Growth of Rice Seedling
Sung, Jwa-Kyung ; Lee, Su-Yeon ; Kim, Tae-Wan ; Hwang, Seon-Woong ; Park, Moon-Hee ; Song, Beom-Heon ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 25~30
Rice seedlings were used to examine the effect of UV-B radiation on leaf elongation and development. Leaf elongation in both rice seedlings showed differently depending on each leaf age. UV-B radiation strongly reduced leaf elongation, 58-66% compared to without UV-B radiation, of two rice seedlings, therefore, those seedlings could not grow further. Both control and plants grown under UV-B regime showed a diurnial fluctuation in growth rate, showing maximum growth during the light period and minimum during the dark period. Leaf growth at the third leaf stage by UV-B treatment was considerably reduced by 1.7-fold than the control whereas at the fifth leaf stage was not changed. Hydrogen peroxide was considerably increased in the second phase of UV-B-induced response as catalase and peroxidase are deactivated with an increase of UV-B radiation.
Morphological Alteration of Cell Organelles Affected by UV-B Radiation in Rice Leaf Tissues
Sung, Jwa-Kyung ; Song, Beom-Heon ; Kim, Hong-Sig ; Lee, Chul-Won ; Kim, Tae-Wan ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 31~35
This experiment was performed to observe morphological changes in rice leaf tissue caused by a successive UV-B radiation. Effect of UV-B radiation on the structural alteration of tissue was not visually found, however, Photosynthate containing phosphate was sharply reduced in proportion with an increase of UV-B radiation. Fundamental components of cuticle layer were being degraded after 6 h of UV-B radiation compared to the control. UV-B-induced mesophyll cell appeared altered because of water stress, the shape of chloroplast appeared to be considerably shrunk and chloroplast thylakoid membranes were severely destructed. Primary cell wall of UV-B-stressed tissue was entirely scattered or disappeared, and the secondary cell wall due to lignin synthesis and deposition resulted in being thickened, almost 2-times, compared with the control.
Inorganic Phosphate Solubilization by Immobilized Pantoea agglomerans under in vitro Conditions
Kim, Eun-Hee ; Park, Sung-Ae ; Park, Myoung-Su ; Yang, Jin-chul ; Madhaiyan, Munusamy ; Seshadri, Sundaram ; Sa, Tong-Min ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 36~40
It is now widely accepted that immobilized microbial cells can overcome some of the problems associated with microbial survival stability, efficacy, storage, transportation and ease of application in agricultural environments. Pantoea agglomerans, a phosphate solubilizing bacterium, was immobilized in alginate, agar and gelatin carriers. All the three immobilfized carriers with bacterial cells of P. agglomerans were compared for solubilization of tricalcium phosphate in pure liquid cultures. While alginate beads were tested for phosphate solubilization on alternate days up to five days, agar beads and gelatin cubes were subjected for one time phosphate solubilization analysis after seven days. Both alginate and agar immobilized cells of P. agglomerans exhibited higher efficiency in increasing the solubilizaliun of tricalcium phosphate than gelatin immobilized cells. The culture filtrate of alginate bead inoculation treatment registered a rapid increase in soluble phosphate concentration upon incubation. A corresponding decrease in the pH of the medium was also observed in all the treatments.
Effect of Immobilized Cells of Pantoea agglomerans on Growth Promotion of Rice(Oryza sativa L.) in the Presence of Rock Phosphates
Chung, Hee-Kyung ; Ryu, Jeoung-Hyun ; Lee, Hyoung-Seok ; Park, Myoung-Su ; Madhaiyan, Munusamy ; Seshadri, Sundaram ; Sa, Tong-Min ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 41~45
A phosphate solubilizig bacterium, Pantoea agglomerans, was isolated from rhizosphere soils collected from Chungbuk area. A greenhouse experiment was conducted to study the effect of combined application of rock phosphate and P. agglomerans inoculation on plant growth and phosphate accumulation of rice (Oryza sativa L.). Apart from control that received no inputs, six treatments were planned as follows; 1) seed bacterization, 2) free cell inoculation and 3) bacteria immobilized beads inoculation, individually and in combination with 1 and 2.5 g of rock phosphate per pot. The results showed that plant growth and phosphate uptake were significantly enhanced as a result of bacterial inoculation. Bacterial inoculation in the form of immobilized beads and 1 g of rock phosphate was found to affect positively the rice plant growth and phosphorus accumulation than other treatments. The available phosphate concentration of the pot mixture also found improved as a result of P. agglomerans inoculation. A positive correlation was observed between the phosphate concentration in the pot mixture and phosphate accumulation in plant.
Phenotypic Characterization of Methylotrophic N
-Fixing Bacteria Isolated from Rice (Oryza sativa L.)
Madhaiyan, Munusamy ; Park, Myoung-Su ; Lee, Hyoung-Seok ; Kim, Chung-Woo ; Lee, Kyu-Hoi ; Seshadri, Sundaram ; Sa, Tong-Min ;
Korean Journal of Soil Science and Fertilizer, volume 37, issue 1, 2004, Pages 46~53
In this study, we compared the levels of methylotrophic bacterial community diversity in the leaf, stem, grain, root and rhizosphere soil sainples of four rice cultivars collected from three regions of Korea. Thirty five pigmented and five non-pigmented isolates showing characteristic growth on methanul were obtained. When phylotypes were defined by performing numerical analysis of 42 characteristics, four distinct clusters were formed. While two clusters, I and IV diverged on the basis of nitrate and nitrite reduction, other two clusters, comprising only pink pigmented colonies, diverged on the basis of cellulase activity. Out of the two reference strains used in the analysis, Methyhbacterium extorquens AM1 diverged from all the clusters and M. fujisawaense KACC 10744 grouped under cluster III. All the isolates were positive for urease, oxidase, catalase and pectinase activity and negative for indole production, MR and VP test,
production, starch, and casein hydrolysis. No clusters were found to possess thermotolerant isolates, as no growth of the isolates was observed at
. Two strains in cluster I were found to possess gelatin hydrolysis and methane utilizing properties respectively. Most of the isolates in all the four clusters utilized monosaccliarides, disaccharide and polyols as carbon source. Six isolates showed considerable nitrogenase activity ranging from 86.2 to