Effects of returning seabuckthorn fruit residue into field on paddy soil properties, greenhouse gas emissions and microbial numbers
To explore the effects of seabuckthorn fruit residue on soil physicochemical properties, greenhouse gas (CO<sub>2</sub>, CH<sub>4</sub>, N<sub>2</sub>O) emissions, and the microbial numbers, a 28-day soil pot experiment was conducted. Three groups of materials wer...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2022-08-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2021.06.291 |
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| Summary: | To explore the effects of seabuckthorn fruit residue on soil physicochemical properties, greenhouse gas (CO<sub>2</sub>, CH<sub>4</sub>, N<sub>2</sub>O) emissions, and the microbial numbers, a 28-day soil pot experiment was conducted. Three groups of materials were used, including seabuckthorn fruit residue (R), biochar (B), and biological ceramsite (T) in the experiment, and a natural culture was used as the control group (CK). The results showed that the seabuckthorn fruit residue significantly promoted the contents of soil nutrients such as total carbon, total nitrogen, and available potassium, and the average increase rates were 16.31%, 14.99%, and 46.15%, respectively. Besides, the soil pH was also enhanced from 0.25 to 0.69. The microbial numbers in the soils treated with seabuckthorn fruit residue were promoted significantly. The average growth rate of microorganisms in the first 14 days was 335.6% higher than that of the control. The CO<sub>2</sub> emissions and global warming potential (GWP) with the treatment of seabuckthorn fruit residue were higher of biochar (R) treatment, while the CH<sub>4</sub> and N<sub>2</sub>O emissions were both lower than those of biochar (B) and biological ceramsite (T) treatments. In general, the seabuckthorn fruit residue showed relatively high returning value, but its risk of greenhouse gas emission should also be considered. This study can provide some references for the practice of returning seabuckthorn fruit residue into the field. |
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| ISSN: | 1008-9209 2097-5155 |