Impacts of Soil Texture on Microbial Community from Paddy Soils in Gyeongnam Province

Lee, Young Han; Ahn, Byung-Koo; Lee, Seong-Tae; Shin, Min-A; Kim, Eun-Seok; Song, Won-Doo; Sonn, Yeon-Kyu

doi:10.7745/kjssf.2011.44.6.1176

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…미생물체량을 나타내는 총 FAME 함량은 논토양에서 진홍미가 193.6 nmol g -1 , 신자미가 156.6 nmol g -1 으로 밭토양의 진홍미 126.1 nmol g -1 ,신자미 107.1 nmol g -1 보다 진홍미는 54%, 신자미는 46% 많았다 (p < 0.001). 이러한 내용은 논토양의 미생물체 함 량이 밭토양 보다 높다고 보고한 결과와 일치하였다(Lee et al, 2011;Chen et al, 2014;Kim et al, 2014). 논토양과 밭토양의 미생물 함량 차이는 그람음성 세균 > 그람양성 세균 > 곰팡이 > 내생균근균 > 방선균 함량 순으로 영향을 준 것으로 나타났다.…”

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Soil Microbial Communities and Growth of Sweet Potato (Ipomoea batatas L.) in Paddy and Upland Soils

Moon¹,

Son²,

Joung³

et al. 2020

Korean J. Soil. Sci. Fert.

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The soil microbial communities and growth of sweet potato are often affected by soil type. This study evaluated the variations in microbial communities of paddy and upland soils used for two sweet potato cultivars (Jinhongmi and Sinjami) cultivation by their fatty acid methyl ester (FAME). The pH, available P 2 O 5 , exchangeable K, Ca, and Mg of upland soil at the harvesting stage were significantly higher than those of paddy soil. The moisture content of paddy soil (28.5%) has increased by 6.7% as compared to upland soil (p < 0.001). The average microbial biomasses in paddy soil were approximately 2.8 times larger for arbuscular mycorrhizal fungi (AMF) and 1.4 -1.6 times larger for fungi, total bacteria, Gram-positive bacteria, total FAMEs, Gram-negative bacteria, and actinomycetes. In addition, The total FAMEs, Gram-positive bacteria, fungi, total bacteria, and AMF in Jinhongmi cultivated soils were significantly larger than those in Sinjami cultivated soils. AMF communities in paddy soil showed significantly larger than that in upland soil (p < 0.001) indicating AMF are potentially responsible for the microbial community differentiation between paddy and upland field. The tuber yield of sweet potato was 28% higher, respectively, in the paddy soil and Sinjami treatment than in the upland soil and Jinhongmi treatment. It was confirmed that the paddy field was more effective on the productivity of sweet potato and soil microbial biomass.

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Soil Microbial Communities and Growth of Sweet Potato (Ipomoea batatas L.) in Paddy and Upland Soils

Moon¹,

Son²,

Joung³

et al. 2020

Korean J. Soil. Sci. Fert.

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The Relationship between Microbial Characteristics and Glomalin Concentrations in Paddy Soils of Gyeongnam Province

Lee¹,

Kim²,

Ok³

2012

Korean Journal of Soil Science and Fertilizer

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Glomalin-related soil protein has been suggested as an enhancer for soil stability by promoting the aggregation. In this study, we examined the concentrations of glomalin and characteristics of microbial community in 20 paddy soils sampled from Gyeongnam Province. Total soil glomalin as glomalin-related soil protein (GRSP) had a significant positive correlation with soil organic matter (p<0.01) and soil dehydrogenase activity (p<0.01). The concentration of GRSP significantly correlated to soil microbial biomass carbon (p<0.001) and the total bacterial community (p<0.01) in paddy soils. In addition, the GRSP had a significant positive correlation with gram-negative bacteria community (p<0.05) and ratio of cy19:0 to 18:1ω7c (p<0.05) in paddy soils. In conclusion, the concentration of GRSP could be an indicator of soil health that simplify the inspection steps for sustainable agriculture in paddy soils.

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Chemical Properties of Paddy Soils and Factors Affecting Their Change in Jeonnam Province

Kim¹,

Kim²,

Kim³

et al. 2015

Korean Journal of Soil Science and Fertilizer

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The long-term changes in the soil properties are closely related to the policy direction and the national program for the soil management. In this study, chemical properties of paddy soils in Jeonnam province were investigated at four-year interval since 1999 and the factors affecting change of chemical properties were analyzed in relation to the soil management policies. Chemical fertilizers supplied to Jeonnam province reduced by 57% in 2013 as compared with 1999, and the ratio of Jeonnam province to the national fertilizer supply gradually decreased to 14.1% in 2013 from 17.6% in 1999 due to national policies to reduce use of chemical fertilizers in the 2000s. In the chemical analysis of paddy soils in Jeonnam province, pH value tended to increase gradually within the optimal range. Available phosphate and exchangeable potassium content were always higher than the optimal range and showed no significant difference since 1999. Organic matter, exchangeable calcium and available silicate content were found to be lower than average content in the whole country as well optimal range for rice cultivation in 1999, but were higher than average content in the whole country and optimal range in 2011 because of faster rate of increase in Jeonnam province than the other region since the mid-2000s. The cause of increase in organic matter, exchangeable calcium and available silicate contents is considered to be the increased use of green manure crops and by-products fertilizer as an alternatives for conventional application of chemical fertilizers and soil amendment such as silicate fertilizer for agronomic control of the disease and insect pest in rice cultivation of environmentally-friendly agriculture.

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Impacts of Soil Texture on Microbial Community from Paddy Soils in Gyeongnam Province

Cited by 4 publications

References 21 publications

Soil Microbial Communities and Growth of Sweet Potato (Ipomoea batatas L.) in Paddy and Upland Soils

Soil Microbial Communities and Growth of Sweet Potato (Ipomoea batatas L.) in Paddy and Upland Soils

The Relationship between Microbial Characteristics and Glomalin Concentrations in Paddy Soils of Gyeongnam Province

Chemical Properties of Paddy Soils and Factors Affecting Their Change in Jeonnam Province

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