| Active Filters |
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| 424456 | - 4G - Other (please specify)
| | | | Measured | CO₂ emission factor from urea application during Rice cropping season | Based on the recommendation level of N fertilizer for rice in Korea (90 kg N/ha), four different levels (0, 45, 90 and 180 kg N/ha) of urea treatments were considered. Thirty days old seedlings (3 plants per hill) of rice (Dongjinbyeo cultivar, Japonica) were transplanted by hand with a spacing of 30 cm x 15 cm in the late May 2014 and 2015. Irrigation water was controlled at 5-7 cm depth during the cropping season and drained 3 weeks before rice harvesting. Rice was harvested by early October. | Soil in this experimental site belongs to the Pyeongtaeg series (fine-silty, mixed, nonacid, mesic Typic haplaquent with somewhat impeded drainage). The soil pH was 5.6 ± 0.2 (1:5 with H₂O). Organic C content of the soil was 8.9 ± 0.6 g kg⁻¹ and the total N content was 0.65 ± 0.08 g kg⁻¹. | Jinju, Republic of Korea | | Carbon dioxide quantification was based on standards (Supelco Inc. Bellefonte, Pa.) | 0.0143-0.0156 | Mg C per Mg urea | Peer-reviewed journal | |
| 424457 | - 4G - Other (please specify)
| | | | Measured | CO₂ emission factor from urea application to red pepper during the warm season | Based on the Korean recommended N fertilization levels for red pepper (190 kg N/ha), 4 different levels (0, 50, 100 and 200% of the recommended N level) of urea were selected as the main treatments. Red pepper (Capsicum annum L., Chungyang variety) was cultivated during the warm season, from late May to the mid-October (125 days). | Experimental plots were installed in a typical temperate zone under upland soil conditions. The soil belongs to the Jisan series (fine loamy, mixed, mesic family of Fluvaquentic Endoaquepts) and had a pH of 5.7 ± 0.2 (1:5 with H₂O), an organic C concentration of 13.74 ± 0.6 g kg⁻¹, and a total N concentration of 1.5 ± 0.08 g kg⁻¹ before the experiment. | Jinju, Republic of Korea | | Carbon dioxide quantification was based on standards (Supelco Inc. Bellefonte, Pa.) | 0.062–0.063 | kg C per kg urea | Peer-reviewed journal | |
| 424458 | - 4G - Other (please specify)
| | | | Measured | CO₂ emission factor from urea application to garlic during the cold season | Based on the Korean recommended N fertilization levels for garlic (250 kg N/ha), 4 different levels (0, 50, 100 and 200% of the recommended N level) of urea were selected as the main treatments. Garlic (Allium sativum L., Mayoung variety) was cultivated during the cold season, from late October to mid-May of the following year (220 days). | Experimental plots were installed in a typical temperate zone under upland soil conditions. The soil belongs to the Jisan series (fine loamy, mixed, mesic family of Fluvaquentic Endoaquepts) and had a pH of 5.7 ± 0.2 (1:5 with H₂O), an organic C concentration of 13.74 ± 0.6 g kg⁻¹, and a total N concentration of 1.5 ± 0.08 g kg⁻¹ before the experiment. | Jinju, Republic of Korea | | Carbon dioxide quantification was based on standards (Supelco Inc. Bellefonte, Pa.) | 0.050–0.052 | kg C per kg urea | Peer-reviewed journal | |
