Monitoring for Change of Soil Characteristics by repeated Organic Supply of Comport and Green Manures in Newly reclaimed Organic Upland Field

Ok, Jung-Hun; Cho, Jung-Lai; Lee, Byung-Mo; An, Nan-Hee; Shin, Jin-Chul

doi:10.11625/kjoa.2015.23.4.813

Cited by 4 publications

(4 citation statements)

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“…In the case of cropland in Korea, tidal flats or forests are frequently converted into agricultural land [36,37]. As a result, there are fertile soils and poor soils even on agricultural land.…”

Section: Introductionmentioning

confidence: 99%

Short-Term Effect of Biochar on Soil Organic Carbon Improvement and Nitrous Oxide Emission Reduction According to Different Soil Characteristics in Agricultural Land: A Laboratory Experiment

et al. 2022

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Biochar application has been considered as a promising solution to address the effects of modern agriculture on climate change. However, there is a lack of research on the biochar application of greenhouse gas emissions based on poor soils in Korean agricultural land. Therefore, this study aimed to evaluate the effects of biochar application according to different soil characteristics on soil organic carbon (SOC) improvement and greenhouse gas reduction. The incubation experiments were conducted for 49 days and used different feedstock (barley straw and poultry manure) and biochar application rates (0, 5, 10, and 20-ton ha−1) in four soil characteristics (upland, U; greenhouse, G; converted land, C; reclaimed land, R). The results of this study showed that the SOC increased significantly in all soils after biochar application. The increasing SOC rate was the highest in poor soil. Biochar 20-ton ha−1 treatment significantly reduced N2O emissions by 33.2% compared with the control. Barley straw biochar significantly reduced N2O emissions from all soils. Barley straw biochar decreased approximately 74.5% of N2O emissions compared with poultry manure biochar. Poultry manure biochar improved SOC and reduced N2O emissions in poor soil. However, in poultry manure biochar treatment in U and G soil, N2O emissions increased. In conclusion, barley straw biochar application was found to suppress N2O emissions and improve the SOC in all soil characteristics of agricultural land. In addition, the soil carbon storage effect and N2O reduction effect of biochar were the highest in poor soil. Thus, the biochar application can be a potential agricultural practice for improving soil quality and decreasing N2O emissions in domestic agricultural soil.

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Section: Introductionmentioning

confidence: 99%

Short-Term Effect of Biochar on Soil Organic Carbon Improvement and Nitrous Oxide Emission Reduction According to Different Soil Characteristics in Agricultural Land: A Laboratory Experiment

et al. 2022

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“…The primary benefits of rice farming include the development of public interest regarding wetlands (e.g., biodiversity, flood control, and water quality protection), as well as its market value, food security, environmental conservation, employment maintenance, regional development, and social and cultural value enhancement [32][33][34][35][36]. Among them, organic farming can improve soil fertility, mitigate GHG and carbon, and preserve biodiversity and various ecosystem services [37][38][39][40][41][42]. For this reason, the RFMF paddy is found to have higher economic values than conventional paddy (CP) ecosystem services [43,44].…”

Section: Introductionmentioning

confidence: 99%

Design Model and Management Plan of a Rice–Fish Mixed Farming Paddy for Urban Agriculture and Ecological Education

Son

Kong

Nam

2022

Land

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Imparting knowledge on agriculture and ecology is important for the preservation of nature. This study suggested the design of a rice–fish mixed farming (RFMF) paddy for urban agriculture and ecological education in Korea. This RFMF paddy supports the growth of rice as well as freshwater fish. ANOVA statistical analysis was conducted, and an RFMF paddy was necessary for urban agriculture/education and confirmed that biodiversity was high. To this aim, the design of a 10 m × 10 m RFMF paddy was suggested. Vegetation, insects, and aquatic invertebrates of the RFMF paddy constituted approximately 40 species more than a conventional paddy. The quality of an actual farm’s soil and water was assessed, and techniques for the co-cultivation of rice and fish are proposed. The soil must comply with the standards of Korean paddy soil, and the water must be in the temperature range of 15 to 35 °C. In the proposed design, approximately 44.0 kg rice can be produced, and catfish can grow up to 30 cm. The study suggested many experiences using rice and freshwater fish. On the basis of our study design, a virtual model of an RFMF paddy was developed in consideration of the accessible space. The development of RFMF paddies in educational institutions can promote biodiversity in cities while providing ecological education regarding aquatic plants and insects.

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“…농경지의 경우, 갯벌에서 간척되어 논으로 개간되거나 (Yang et al, 2008), 산림에서 밭 또는 시설재배지 (Lee et al, 2003, Oh et al, 2010Ok et al, 2015)…”

Section: Introductionunclassified

Greenhouse Gas Emissions according to Application of Biochar by Soil Type in the Closed Chamber

Lee¹,

Park

Kang

et al. 2021

Korean J. Soil. Sci. Fert.

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Recently, biochar-related research using agricultural by-products has been actively conducted as part of a response to climate change. However, the effect research of reducing greenhouse gas emissions by the application of biochar by soil type in Korea is still insufficient. Thus, the purpose of this study was to evaluate the greenhouse gas reduction effect according to the application level of biochar by soil type. Closed chamber experiments were carried out for 42 days. The closed chamber experiment was performed by applying a different input amount biochar (0, 5, 10 and 20 ton ha -1 ) by four soil types (upland soil, greenhouse soil, converted soil, reclaimed soil). The cumulative carbon dioxide (CO 2 ) emission decreased by 21.1 -25.7% on average in greenhouse soil, converted soil, and reclaimed soil, but there was no significant difference. It was analyzed that the cumulative nitric oxide (N 2 O) emission decreased significantly by 43.7 -72.1% on average compared to the control group. All four soil types were analyzed to have low N 2 O emissions in the treatment chamber to which 20 ton ha -1 of biochar was applied. Long-term monitoring studies related biochar that can suppress nitrous oxide emissions and increase crop production are considered to needed for sustainable agriculture.

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Monitoring for Change of Soil Characteristics by repeated Organic Supply of Comport and Green Manures in Newly reclaimed Organic Upland Field

Cited by 4 publications

References 0 publications

Short-Term Effect of Biochar on Soil Organic Carbon Improvement and Nitrous Oxide Emission Reduction According to Different Soil Characteristics in Agricultural Land: A Laboratory Experiment

Short-Term Effect of Biochar on Soil Organic Carbon Improvement and Nitrous Oxide Emission Reduction According to Different Soil Characteristics in Agricultural Land: A Laboratory Experiment

Design Model and Management Plan of a Rice–Fish Mixed Farming Paddy for Urban Agriculture and Ecological Education

Greenhouse Gas Emissions according to Application of Biochar by Soil Type in the Closed Chamber

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