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| Effects of different fertilizer application modes on greenhouse gas emissions of watermelon in facilities |
| Received:March 06, 2024 |
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| KeyWord:watermelon;fertilization;greenhouse gas;greenhouse gas emission intensity |
| Author Name | Affiliation | E-mail | | HAO Han | Beijing University of Civil Engineering and Architecture, Beijing Research and Talent Training Base for Addressing Climate Change, Beijing 100044, China
School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China | | | MA Wenlin | Beijing University of Civil Engineering and Architecture, Beijing Research and Talent Training Base for Addressing Climate Change, Beijing 100044, China
School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China | mawenlin1130@126.com | | YANG Hang | Beijing University of Civil Engineering and Architecture, Beijing Research and Talent Training Base for Addressing Climate Change, Beijing 100044, China
School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China | | | ZHAO Jiali | Beijing University of Civil Engineering and Architecture, Beijing Research and Talent Training Base for Addressing Climate Change, Beijing 100044, China
School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China | | | ZHANG Caiyue | Beijing Daxing District Planting Technology Promotion Station, Beijing 102699, China | | | LI Tong | Beijing Daxing District Planting Technology Promotion Station, Beijing 102699, China | |
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| Abstract: |
| To explore the effects of different fertilizer management on watermelon yield, greenhouse gas emission and soil physicochemical properties, etc., and to explore the determination of suitable fertilizer application methods, to achieve high watermelon yield and emission reduction. The experiment was conducted in a greenhouse watermelon field, and five treatments were set up according to the bottom fertilizer application method：no fertilizer（CK）, conventional fertilizer application（CT+OM）, soil testing and formulation（ST+OM）, single application of organic fertilizer（OM）, single application of chemical fertilizers（UF）, and the greenhouse gas emission fluxes in the watermelon field were collected and analyzed by static box-gas chromatography, and the fluxes of soil inorganic nitrogen and organic matter were detected. The results showed that the watermelon yield of organic fertilizer with inorganic fertilizer was significantly increased, among which the watermelon yield of ST + OM treatment was significantly higher than that of other treatments, with a significant increase of 143.78% compared with that of CK. In the seedling stage of watermelon, the ammonium nitrogen content of the soil and the content of organic matter of CT+OM, ST+OM, and OM treatments were significantly higher than that of other treatments; CT+OM had the largest overall change in NO2 and CO2 emission fluxes compared to the other treatments and CH4 emission fluxes showed positive and negative alternating fluctuations; the intensity of greenhouse gas emissions was significantly higher in the CT+OM treatment than in the UF, and there was no significant difference in the other treatments. Soil testing and formulated fertilization treatments were able to significantly increase watermelon yields compared to other treatments, and their greenhouse gas emission intensities were not significantly different from the lowest single fertilizer treatment, making them the best fertilizer application model in terms of overall benefits. |
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