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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 47, Issue 6 - Dec 2014
Volume 47, Issue 5 - Oct 2014
Volume 47, Issue 4 - Aug 2014
Volume 47, Issue 3 - Jun 2014
Volume 47, Issue 2 - Apr 2014
Volume 47, Issue 1 - Feb 2014
Selecting the target year
Evaluation of Practical Application of the Remote Monitoring System for Water Salinity in Estuary Lake During Farming Season
Lee, Kyung-Do ; Hong, Suk-Young ; Kim, Yi-Hyun ; Na, Sang-Il ; Oh, Young-Jin ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 313~318
DOI : 10.7745/KJSSF.2014.47.5.313
The remote monitoring system of water salinity was assessed in Wando reclaimed land lake during a farming season in 2009. Increasing of water salinity in this lake used to bring about salt damage on rice plant occasionally. At the early stage of the rice growing period, rice growth was not damaged due to enough rainfall with more than 120 mm from the mid-May to the first ten days of June. Data collection using on-site water salinity measuring sensors every 2 hours and real-time transmission in system were carried out for the experiment. We compared the transmitted values from the sensor system with water sample values collected and analyzed by a local technical office. Salt concentrations measured by sensor in real-time monitoring system were available data. The regression equation between rainfall and water salinity was presented as (water salinity after rainfall) =
(water salinity before rainfall)
, p<0.01). It is suggested that the system is useful for stable farming in the area where farmer use water in reclaimed lakes as an irrigation source.
Predicting Soil Chemical Properties with Regression Rules from Visible-near Infrared Reflectance Spectroscopy
Hong, Suk Young ; Lee, Kyungdo ; Minasny, Budiman ; Kim, Yihyun ; Hyun, Byung Keun ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 319~323
DOI : 10.7745/KJSSF.2014.47.5.319
This study investigates the prediction of soil chemical properties (organic matter (OM), pH, Ca, Mg, K, Na, total acidity, cation exchange capacity (CEC)) on 688 Korean soil samples using the visible-near infrared reflectance (VIS-NIR) spectroscopy. Reflectance from the visible to near-infrared spectrum (350 to 2500 nm) was acquired using the ASD Field Spec Pro. A total of 688 soil samples from 168 soil profiles were collected from 2009 to 2011. The spectra were resampled to 10 nm spacing and converted to the 1st derivative of absorbance (log (1/R)), which was used for predicting soil chemical properties. Principal components analysis (PCA), partial least squares regression (PLSR) and regression rules model (Cubist) were applied to predict soil chemical properties. The regression rules model (Cubist) showed the best results among these, with lower error on the calibration data. For quantitatively determining OM, total acidity, CEC, a VIS-NIR spectroscopy could be used as a routine method if the estimation quality is more improved.
The Characteristics of Growth and Green Manure Yield by Different Kinds of Landscape Crops Cultivated in Summer in Upland Soil
Cho, Hyeoun-Suk ; Seong, Ki-Yeung ; Park, Tae-Seon ; Seo, Myung-Chul ; Kim, Mi-Hyang ; Kang, Hang-Won ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 324~331
DOI : 10.7745/KJSSF.2014.47.5.324
Landscape crops have decorated its surrounding landscape by being cultivated from spring to late fall. Recently, landscape crops are starting to get the limelight as crops that can be cultivated in large area farmlands. Therefore, we examined the growth characteristics of landscape crops, green manure yield and nitrogen production of crops that are cultivated during summer, which are sunflower, cosmos, sunnhemp and sesbania, in order to select crops that can be utilized as landscape crops and green manure crops. The height of landscape crops increased when the harvest time was later. Especially, sunnhemp, cosmos, sunflower and sorghum grew over 100cm. The days to flowering of sunnhemp and cosmos were 50 and 53 days each, and their flowering period of more than 50 days were long. The days to flowering of sunflower, which was 52 days, was short, and its flowering period, which was 21 days, was also short. When the harvest time was later, the green manure yield and nitrogen production of all crops increased. Individually, the green manure yield was higher in sunnhemp, sorghum, sunflower, with
, and was lowest in sesbania. The nitrogen production was higher in sunnhemp, with
Therefore, as seen in its flowering characteristics, green manure yield and nitrogen production, sunnhemp had the best green manure and landscape effects among the landscape crops for summer.
Responses of Capsicum annum (red pepper) to Fertilization Rates at Various Soil Moisture Conditions
Jung, Kang-Ho ; Sonn, Yeon-Kyu ; Han, Kyoung-Hwa ; Zhang, Yong-Seon ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 332~339
DOI : 10.7745/KJSSF.2014.47.5.332
This research was performed to test the hypothesis that the optimal fertilization rate for red pepper is changed by soil moisture condition. The experiment was conducted in rainfall-intercepted fields in Suwon, South Korea from 2002 to 2003. Soil was irrigated at 30, 50, or 80 kPa of soil moisture tension at 20 cm soil depth in 2002 and 30, 50, 100, or 150 kPa in 2003. For both years, fertilization was performed with four levels: none, 0.5, 1, and 1.5 times of the recommended N, P, and K fertilization rate. The irrigation amount was the greatest at 30 kPa irrigation while the water use efficiency increased with decrease of irrigation amount. The Irrigation amount was 508 mm at 30 kPa irrigation and ranged from 355 mm to 435 mm at 50 kPa irrigation. The maximum yield was found at 30 kPa irrigation and 1.5 times of the recommend fertilization rate in 2002 and 2003. The yield index of red pepper increased linearly with the fertilization rate at 30 kPa which implied that excess irrigation induced nutrient leaching and reduced nutrient availability. The maximum yield in 50 kPa and 80 kPa was found at the recommend fertilization rate while the yield decreased by fertilization at 100 kPa and 150 kPa irrigation. It implies that reduction of fertilization is the feasible practice to mitigate drought stress in fields without stable irrigation resources.
Effects of Compost and Gypsum on Soil Water Movement and Retention of a Reclaimed Tidal Land
Lee, Jeong-Eun ; Yun, Seok-In ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 340~344
DOI : 10.7745/KJSSF.2014.47.5.340
Compost and gypsum can be used to ameliorate soil physicochemical properties in reclaimed tidal lands as an organic and inorganic amendment, respectively. To evaluate effects of compost and gypsum on soil water movement and retention as a soil physical property, we measured the soil's saturated hydraulic conductivity and field capacity after treating the soil collected in a reclaimed tidal land with compost and gypsum. Saturated hydraulic conductivity of soil increased when compost was applied at the conventional application rate of
. However, the further application of compost insignificantly (P > 0.05) increased saturated hydraulic conductivity. On the other hand, additional gypsum application significantly increased soil saturated hydraulic conductivity while it decreased soil field capacity, implying the possible effect of gypsum on flocculating soil colloidal particles. The results in this study suggested that compost and gypsum can be used to improve hydrological properties of reclaimed tidal lands through increasing soil water retention and movement, respectively.
Daily Changes in Red-Pepper Leaf Surface Temperature with Air and Soil Surface Temperatures
Eom, Ki-Cheol ; Lee, Byung-Kook ; Kim, Young-Sook ; Eom, Ho-Yong ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 345~350
DOI : 10.7745/KJSSF.2014.47.5.345
This study was conducted to investigate the changes in daily surface temperature of red pepper leaf compared to air and soil surface temperature. The maximum, minimum and average daily temperatures of red pepper leaf were 27.80, 11.40 and
, respectively, which were lower by 0.10, 7.60 and
than air temperature, respectively, and lower by 15.00, 0.0 and
than soil surface temperature, respectively. Mean deviations of the difference between measured and estimated temperature by the E&E Model (Eom & Eom, 2013) for the air and surface temperature of red pepper leaf and soil were 0.64, 1.82 and
, respectively. The relationships between measured and estimated scaled factor of the air and surface temperature of red pepper leaf and soil were very close to the 1:1 line. Difference between air and surface temperature of red pepper leaf showed a linear decreasing function with the surface temperature of red pepper leaf. Difference between soil surface temperature and air and surface temperature of red pepper leaf linearly increased with the soil surface temperature.
Effect of Biochar bead on Adsorption of Heavy Metals
Kim, Ho-Jin ; Lee, Hochul ; Kim, Hyuck-Soo ; Kim, Kye-Hoon ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 351~355
DOI : 10.7745/KJSSF.2014.47.5.351
In recent years, biochar has received much attention as soil amendment, enhancing soil fertility and reducing toxicity of heavy metals with its large specific surface area and high pH. Biochar has also the effect of alleviating global warming by carbon sequestration from recycling organic wastes by pyrolysis. However, scattering of fine particles of biochar is a hindrance to expand its use from human health point-of-view. Alginate, a natural polymer without toxicity, has been used for capsulation and hydrogel fabrication due to its cross-linking nature with calcium ion. In this study, the method of cross-linkage between alginate and calcium ion was employed for making dust-free biochar bead. Then an equilibrium adsorption experiment was performed for verifying the adsorption effect of biochar bead on heavy metals (cadmium, copper, lead, arsenic, and zinc). Results showed that biochar bead had effects on adsorbing heavy metals, especially lead, except arsenic.
Effects of Coal Fly Ash as a Bulking Agent under Co-composting with Swine Manure and Saw Dust
Lee, Chang Hoon ; Park, Seong Jin ; Kim, Myung Sook ; Yun, Sun Kang ; Sonn, Yeon Kyu ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 356~361
DOI : 10.7745/KJSSF.2014.47.5.356
The coal fly ash (CFA) may be utilized as an extender for organic waste composting at the same time fully expected to solve all industrial waste disposal and sawdust tribe. The main objective in this study was to evaluate the effect of CFA addition as a bulking agent for swine manure composting. To determine the suitable addition rate of CFA as a bulking agent, 0, 10, 20 and 30% of saw dust were mixed with 30, 20, 10 and 0% of coal fly ash, respectively. Compost quality for swine manure composting was to evaluate temperature, pH, C/N ratio, and phytotoxicity as germination index. Stability of compost increased with increasing levels of CFA as bulking agent during swine manure composting due to the high alkaline materials including CFA. C to N ratio in treatment added CFA was higher than that of the control without CFA. After finishing composting, germination index of lettuce and cabbage in swine manure compost added 10% of CFA was similar to the control, all the heavy metal contents were far below the stipulated standard for organic farming. These results indicated tahr coal fly ash as bulking agents might be alternative materials to save saw dust and apply industrial products for swine manure composting.
The Removal of Petroleum Hydrocarbon from Fine Soil in Soil Washing Water using Advanced Oxidation Processes
Jang, Gwan-Soon ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 362~367
DOI : 10.7745/KJSSF.2014.47.5.362
This study was performed to test the applicability of the ozone/hydroxy radical reaction system, which applied advanced oxidation processes, to remove total petroleum hydrocarbon (TPH) from the fine soil in washing water of the soil washing process. Removal efficiency was tested on 40 L of washing water in a pilot reaction tank. Fine soil contaminated with
TPH was prepared at 5% and 10% suspended solids. Testing conditions included ozone/hydroxy radical flow rates of 40, 80, and
, and processing time of 2 to 12 hours. The removal efficiency of petroleum hydrocarbon from water waster by ozone/hydroxy radical was increased with higher flow rates and lower percentages of suspended solids. Optimal efficiency was achieved at
flow rate for 4 hours for the 5% suspended solids, and
for 6 hours for the 10% suspended solids. These results verified the efficiency of hydroxy radical in removing TPH and the applicability of the ozone/hydroxy radical reaction system in the field.
Effect of Mixed Treatment of Urea Fertilizer and Zeolite on Nitrous Oxide and Ammonia Emission in Upland Soil
Park, Jun-Hong ; Park, Sang-Jo ; Seo, Young-Jin ; Kwon, Oh-Heun ; Choi, Seong-Yong ; Park, So-Deuk ; Kim, Jang-Eok ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 368~373
DOI : 10.7745/KJSSF.2014.47.5.368
Ammonia loss from urea significantly hinders efficient use of urea in agriculture. The level of nitrous oxide (
) a long-lived greenhouse gas in atmosphere has increased mainly due to anthropogenic source, especially application of nitrogen fertilizers. There are reports in the literature showing that the addition of zeolite to N sources can improve the nitrogen use efficiency. This study was conducted to evaluate nitrous oxide (
) and ammonia (
) emission by mixed treatment of urea and zeolite in upland crop field. Urea fertilizer and zeolite were applied at different rates to study their effect on
emission during red pepper cultivation in upland soils. The
gas was collected by static closed chamber method and measured by gas chromatography. Ammonia concentration was analyzed by closed-dynamic air flow system method. The total
flux increased in proportion to the level of N application. Emission of
from the field increased from the plots applied with urea-zeolite mixture compared to urea alone. But urea-zeolite mixture treatment reduced about 30% of
-N volatilization amounts. These results showed that the application of urea and zeolite mixture had a positive influence on reduction of
volatilization, but led to the increase in
emission in upland soils.
A Case Study to Estimate the Greenhouse-Gas Mitigation Potential on Rice Production System in Farming without Agricultural Chemicals
Lee, Jong-Sik ; Ryu, Jong-Hee ; Jeong, Hyun-Cheol ; Choi, Eun-Jung ; Kim, Gun-Yeob ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 374~380
DOI : 10.7745/KJSSF.2014.47.5.374
To estimate greenhouse gas (GHG) emission, the inventory of rice cultivation at the farming without agricultural chemicals was established from farmers in Gunsan, Jeonbuk province in 2011~2012. The objectives of this study were to calculate carbon footprint and analyse the major factor of GHGs. To do this, we carried out a sensitivity analysis using the analyzed main factors of GHGs and estimated the mitigation potential of GHGs. Also we suggested agricultural methods to reduce GHGs that can be appled by farmers at this region. At the farming system without agricultural chemicals, carbon footprint of rice production unit of 1 kg was 2.15 kg
. Although the amount of carbon dioxide (
) emission was the largest among GHGs, methane (
) emission had the highest contribution to carbon footprint on rice production system when it was converted to carbon dioxide equivalent (
) multiplied by the global warming potential (GWP). Main source of
emission in the rice farming system without agricultural chemicals was combustion of fossil fuels used by agricultural machinery. Most of the
was emitted during rice cultivation practice and its major emission factor was flooded paddy field in anaerobic condition. Also, most of the
was emitted from rice cultivation process. Major sources of the
emission was application of fertilizer such as compound fertilizer. As a result of sensitivity analysis in energy consumption, diesel had the highest sensitivity among the energy inputs. With the reduction of diesel consumption by 10%, it was estimated that
potential reduction was about 2.0%. With reducing application rate of compound fertilizer by 10%, the potential reduction was calculated that
could be reduced by 0.5% and 0.9%, respectively. At the condition of 10% reduction of silicate and compost,
could be reduced by 1.5% and 1.6%, respectively. With 8 days more drainage than the ordinary practice,
emission could be reduced by about 4.5%. Drainage and diesel consumption were the main sources having the largest effect on the GHG reduction at the farming system without agricultural chemicals. Based on the above results, we suggest that no-tillage and midsummer drainage could be a method to decrease GHG emissions from rice production system.
Characteristics of Greenhouse Gas Emission in the Upland Soil Applied with Agricultural Biomass
Park, Woo-Kyun ; Kim, Gun-Yeob ; Lee, Sun-Il ; Shin, Joung-Du ; Jang, Hee-Young ; So, Kyu-Ho ;
Korean Journal of Soil Science and Fertilizer, volume 47, issue 5, 2014, Pages 381~389
DOI : 10.7745/KJSSF.2014.47.5.381
-N contents in the soil treated were relatively high in the initial stages, but rapidly decreased at 124 days after treatment.
-N contents were shown to be opposite patterns of
emissions in the non-treatment and Carbonized rice hull treatment with application of NPK fertilizers decreased by 43.7 and 21.9% relative to the non-application of NPK fertilizer plot except 5.4% increasement in the pig manure compost treatment.
emissions of the non-application, the Expander rice hull application, and bio-char treatment increased by 90, 25, and 21.4%, respectively, but decreased by 54.2% in the pig manure compost treatment applied with NPK fertilizers compared with the NPK fertilizer non-application plot.