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- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.11
- 수록면
- 9 - 9 (1page)
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Plastic film mulching (PFM) is a very effective agricultural practice to increase crop productivity and nutrient availability by improving soil properties and controlling weeds. However, since PFM can deplete soil organic carbon (SOC) stock and increase greenhouse gas (GHG) emission, PFM utilization is still debating. To determine the influence of PFM on maize growth and global warming impact, PFM and no-mulching treatments were installed as main treatment under the different levels of green manure (GM) biomass application. A mixture of barley and hairy vetch was cultivated as a cover crop during fallow seasons, and its biomass was recycled as GM under four different levels of cover crop biomass (0, 25, 50, and 100% of the harvested aboveground biomass) within each main plot as sub-treatments. To estimate net GWP, two GHG (N₂O and CH₄) fluxes and SOC stock changes were investigated. SOC stock changes were estimated using net ecosystem C budget (NECB), which implies the difference between C input and output. Greenhouse gas intensity (GHGI) was calculated using net GWP per unit of grain yield. PFM significantly improved soil temperature and moisture regime during two-year maize cropping seasons. The improved soil properties under PFM increased clearly inorganic N contents in soils. Thus, PFM significantly increased maize productivity and nitrogen use efficiency (NUE) over the no-mulching. The effect of PFM on increasing maize yields became bigger with higher GM biomass application, due to higher ... 전체 초록 보기
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Harvesting of cover crops at different growing stages and its effect on yield productivity and greenhouse gas emissions during rice cultivation
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Effective Mitigation of Global Warming Potential (GWP) in Cover Crop Biomass Amended Rice Paddy via Aerobic Decomposition before Flooding
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Nitrous Oxide Emission from Upland Soil Mulched with Different Type of Plastic Films during Growing Season of Maize
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The importation of genetically modified crops and its environmental impacts in Korea
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Short-Term Aerobic Digestion of Biomass Amended Soil Significantly Decreased Net Global Warming Potential during Rice Cultivation
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Greenhouse Gases Emission from Rice Paddy under Different Tillage Intensity during Fallow Season
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