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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Soil Science and Fertilizer
Journal Basic Information
Journal DOI :
Korean Society of Soil Science and Fertilizer
Editor in Chief :
Volume & Issues
Volume 41, Issue 6 - Dec 2008
Volume 41, Issue 5 - Oct 2008
Volume 41, Issue 4 - Aug 2008
Volume 41, Issue 3 - Jun 2008
Volume 41, Issue 2 - Apr 2008
Volume 41, Issue 1 - Feb 2008
Selecting the target year
Effects of Thinning on Nutrient Input by Rainfall and Litterfall in Natural Hardwood Forest at Mt. Joongwang, Gangwon-do
Jung, Mun-Ho ; Lee, Don-Koo ; Um, Tae-Won ; Kim, Young-Soo ; Kwon, Ki-Cheol ; Jung, Kang-Ho ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 1~8
The objectives of this study were to compare nutrient natural input between thinned and unthinned natural hardwood stands at Mt. Joongwang, Pyongchang-gun, Gangwon-do. Throughfall, stemflow, A-layer and B-layer soil water as well as litterfall were sampled at two-week intervals during the period of June to October from 2002 to 2004. The amount of rainfall interception in thinned and unthinned natural hardwood stands was as 12% and 18%, respectively. The results indicated that there was no difference in annual nutrient input by rainfall between thinned and unthinned stands.
concentrations of A-layer soil water in the unthinned stand were higher than those in the thinned stand. In the B-layer soil water,
concentrations in the unthinned stand were higher than those in thinned stand. Mean annual litterfall input was
in unthinned stand and
in thinned stand. Total-N input from litterfall was
in the unthinned stand and
in the thinned stand, while there was no difference in exchangeable cation input from litterfall between thinned and unthinned stands. Thus, the difference in nutrient inputs except for N by throughfall, stemflow and litterfall between the two stands was not influenced by thinning.
Ubiquitous Presence and Activity of Thiosulfate Oxidizing Bacteria in Rhizosphere of Economically Important Crop Plants of Korea
Yim, Woo-Jong ; Anandham, R. ; Gandhi, P. Indira ; Hong, In-Soo ; Islam, M.R. ; Trivedi, P. ; Madhaiyan, M. ; Han, Gwang-Hyun ; Sa, Tong-Min ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 9~17
The presence of thiosulfate oxidizing bacteria was examined in rhizosphere soils of 19 economically important plant species belonging to 10 different families. The results showed that the thiosulfate oxidizing bacteria were present in all the tested rhizosphere soils, and the total 32 thiosulfate oxidizing bacteria were recovered. Furthermore, the biochemical characterization revealed that 56% and 44% of the isolates belonged to the obligate chemolithoautotrophs and facultative heterotrophs, respectively. The isolates ATSR15P utilized 19.17 mM of thiosulfate and accumulated 11.65 mM of sulfate in the medium. Concurrently, the decrease in pH of the medium was observed. This study comprehensively demonstrates that the active sulfur oxidation is a ubiquitous phenomenon in the rhizosphere of crop plants in Korea.
In vitro Evaluation of the Mechanism of Antagonism and Phosphate Solubilization by the Insect Gut Bacteria Pseudomonas sp. PRGB06 that Exhibits Plant Growth Promotion and Bio-Fertilizing Traits
Kim, Kyoung-A ; Indiragandhi, P. ; Anandham, R. ; Palaniappan, P. ; Trivedi, P. ; Madhaiyan, M. ; Han, Gwang-Hyun ; Sa, Tong-Min ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 18~25
Pseudomonas sp. PRGB06, a bacterial strain isolated from diamondback moth (Plutella xylostella) gut, was examined for its plant growth promotion and biofertilizing traits. The bacteria growth was observed under various conditions of carbon sources, temperature, pH and salt concentrations. In addition, the mechanisms of antagonism and phosphate solubilization were investigated. The bacterial strain PRGB06, grew well using most of the tested carbon sources. The best growth was observed at
and pH 7. The inhibition of the pathogenic fungi was likely due to the volatile antifungal metabolite and ammonia gas produced by the bacteria. A significant positive relationship was found between the phosphate solubilization and acid production. When inoculated with PRGB06 in vitro and in gnotobiotic condition, red pepper and maize showed increase in root length, seedling vigor and dry bio-mass.
Comparison of Soil Nutrient Status in Conventional and Organic Apple Farm
Chung, Jong-Bae ; Lee, Yoon-Jung ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 26~33
Soil nutrient status in an organic apple farm was evaluated in relation to a conventional farm to better understand the effects of organic farming system on soil fertility. Soil organic matter, total and mineral N, available P, exchangeable cations, and available micronutrients were monitored at depth of 5-20 cm from May to October in 2006. Average soil organic matter content was 63.3 and
in organic and conventional farm, respectively. Total N content was 3.3 and
in average for organic and conventional farm, respectively. Ammonium and nitrate N in organic farming were maintained at relatively stable levels, but in the conventional farm the levels were very high in early season due to the chemical fertilizer application. In the organic apple farm, available P content in May was lower than that found in the conventional farm, but during the growing season available P content was continuously increased and in August the content was more than
. The organic farm maintained relatively greater exchangeable K, Ca, and Mg levels than the conventional farm. Available Cu, Fe, and Mn contents in the conventional farm were relatively greater than those found in the organic farm. However, available Zn extracted in 0.1 M HCl was much greater in the organic farm. Nutrient levels above crop needs were observed in both conventional and organic apple farm suggesting a more appropriate management of soil nutrients in organic farming to secure its fundamental functions for the sustainable agriculture.
Soil Moisture Regime Affects Variation Patterns in Concentration of Inorganic Nitrogen from Liquid Swine Manure during Aerobic Incubation
Ro, Hee-Myong ; Kim, Lee-Sun ; Lee, Min-Jin ; Choi, Hyo-Jung ; Park, Chi-Ho ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 34~37
Changes in Carbohydrate, Phenolics and Polyamines of Pepper Plants under Elevated-UV-B Radiation
Sung, Jwa-Kyung ; Lee, Su-Yeon ; Park, Jae-Hong ; Lee, Sang-Min ; Lee, Yong-Hwan ; Choi, Du-Hoi ; Kim, Tae-Wan ; Song, Beom-Heon ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 38~43
Pepper plants (Capsicum annuum, cv. Manitta) were subjected to different intensities of UV-B radiation to understand alterations of primary- and secondary-metabolism such as carbohydrates, phenolic compounds and polyamines. UV-B doses with a UV-B lamp (
) were adjusted between 0 to 9 hr. The soluble sugars and starch contents in pepper leaves were highly influenced by UV-B treatment. The soluble sugars altered from
after 9 hrs of UV-B exposure. The starch contents after 3 hrs of UV-B exposure changed from
and then remained unchanged. The absorbance of UV-absorbing compounds reached initially maximum at all wavelengths read. On the basis of this result, we analyzed total phenolics, anthocyanin and simple free phenolic acids. Anthocyanin and free phenolic acids responded sensitively with a steady increase during UV-B treatment, although anthocyanin contents declined highly after 3 hrs of treatment. Whereas, there is no alteration of total phenolics (as gallic acid equivalent) caused by UV-B. Free polyamine levels in leaves increased rapidly and highly when UV-B was treated. The most prominent changes in polyamine induction were putrescine and spermidine (+ 70 %) after 3 hrs and spermine (+ 150 %) after 6 hrs.
Impacts of Cover Crops on Early Growth, Nitrogen Uptake and Carbohydrate Composition of Pepper Plants
Sung, Jwa-Kyung ; Lee, Sang-Min ; Lee, Yong-Hwan ; Choi, Du-Hoi ; Kim, Tae-Wan ; Song, Beom-Heon ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 44~49
Sufficient inorganic nitrogen supply for crop growth is crucial for economically sustainable organic farming. The effects of an application of cover crop biomass on crop growth, nitrogen utilization and carbohydrate composition were investigated during early stage. Short-term changes in soil nitrogen after incorporating fresh hairy vetch and rye shoots were measured. The inorganic nitrogen from cover crops reached the peak at 15 (
) and 24 (
) days after incorporation, and then decreased rapidly. The highest concentration of soil nitrate showed at 27 days of incorporation in hairy vetch and at 18 days in rye, and three fold differences exhibited between two treatments. Crop growth under hairy vetch or rye incorporation significantly differed. At 20 DAT, dry matter production in NPK and hairy vetch was about two fold greater than that in rye. Difference in decomposing rates of hairy vetch and rye had also influence on nitrogen status in leaves and roots of pepper plants. Total nitrogen was greater in NPK and hairy vetch than in rye until 20 DAT, whereas inorganic nitrogen (nitrate and nitrite) concentration was higher in rye. Temporal changes in soluble sugars and starch in pepper plants among treatments were similar, although difference in the amount existed. It was suggested that hairy vetch as an alternative nitrogen source promoted crop growth and mineral utilization during early growth stage, whereas an obvious effect in rye was not found.
Use of NIR Technique for Determination of Total Phosphorus and Available Phosphorus in Korean Soils
Ryu, Kwan-Shig ; Park, Ji-Sook ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 50~54
NIR spectroscopy is newly developed tools determining the soil properties. Phosphorus in soil is one of the most difficult and time consuming elements to assess for plant needs. The calibration coefficient(R) of NIR method for total phosphorus by
P was 0.91 and 0.88, and available phosphorus by Lancaster and Bray 1. extractant was 0.88 and 0.82. According to Williams guidelines for the calibration coefficient, NIR method could also be used for estimating total and available phosphorus if one performed optimal calibration for predicting soil properties. Applicability of NIR spectra, if improved accuracy, may allow the use of soil testing.
Influence of Vetiver Grass (Vetiveria zizanioides) on Rhizosphere Chemistry in Long-term Contaminated Soils
Kim, Kwon-Rae ; Owens, Gary ; Naidu, Ravi ; Kim, Kye-Hoon ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 55~64
A detailed understanding and appreciation of the important mechanisms operating at the soil:root interface, commonly identified as the rhizosphere, is critical for evaluating the potential for particular plant species to be successfully used as part of a phytoremediation technique. For specific plants, mechanisms may exist to overcome the inherit limitation of the phytoremediation technique when poorly mobile soil metals are of interest. In the present study, the influence of root exudates on the rhizosphere chemistry of soil and consequential metal uptake were investigated following culture of vetiver grass (Vetiveria zizanioides), recognized as a promising plant for land stabilization, in three different long-term contaminated soils and one non-contaminated control soil. The soil solution pH increased (0.3-1.1 units) following vetiver grass culture and dissolved organic carbon (DOC) also significantly increased in all soils with the highest increase in PP02 (23 to
). Chemical changes are contributed to root exudation by vetiver grass when exposed to high concentration of heavy metals. Chemical changes, consequently, influenced metal (Cd, Cu, Pb, and Zn) solubility and speciation in the rhizosphere. The highest solubility was observed for soil Ko01 (eg. 2091 and
for Cd and Pb, respectively). Initial heavy metal solubility in soils varied with soil and either increased or decreased following vetiver grass culture depending on the soil type. An increase in pH following plant culture generally resulted in a decrease in metal solubility, while elevated DOC due to root exudation resulted in an increase in metal solubility via the formation of metal-DOC complexes. Donnan speciation demonstrated a significant decrease in free Cd and Zn in the rhizosphere and the concentration of Cd, Pb, and Zn in vetiver grass shoot was highly correlated with soluble concentration rather than total soil metal concentration.
Effects of Barley Straw Management Practices on Greenhouse Gases(GHGs) Emission During Rice Cultivation in Rice-barley Double Cropping System
Ko, Jee-Yeon ; Lee, Jae-Saeng ; Jung, Ki-yul ; Choi, Young-Dae ; Ramos, Edwin P ; Yun, Eul-Soo ; Kang, Hwang-Won ; Park, Seong-Tae ;
Korean Journal of Soil Science and Fertilizer, volume 41, issue 1, 2008, Pages 65~73
Because main barley straw management is changing these days from off-fields to burning that may relate to air quality concerning the global warming, this study was conducted to investigate the effects of barley-straw management practices on greenhouse gas emissions during rice cultivation in rice-barley double cropping system. The treatments were barley straw burning, off-field usage of barley straw and incorporation of barley straw in paddy fields. Laboratory experiment showed that burning of barley straw at the rate of
emitted GHGs in the amounts of 4,607, 19.5, and
, respectively. During the rice cultivation of the rice-barley double cropping system, the highest GHG emission by evaluated close-static chamber method was observed from the soil incorporation of barley straw with 387 and
, respectively. The GHGs emissions from the barley straw burning and off-field usage treatments were 233 and
and 0.80 and
, respectively. The barley straw burning treatment showed the greatest GHGs emission among barley straw management practices in rice-barley double cropping system when considering GHGs emissions both during burning and from paddy fields during the cropping seasons. As a result, the GHGs emissions recorded in the barley straw incorporation to soil and off-field usage treatments were 22.4 and 66.8%, respectively, less than sum of GHGs emissions from the burning of barley straw and from paddy fields during rice cultivation.