The Effects of different agricultural management measures on CH4 emission from paddy fields in southwest Shandong Province

• Published in: IOP conference series. Earth and environmental science Vol. 792; no. 1; pp. 12051 - 12057
• Main Authors: Shen, Yi Lin, Yu, Shu
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2021
• Subjects: Agricultural management; Agricultural production; Crop yield; Emission analysis; Emission measurements; Emissions; Fertilizers; Field tests; Garlic; Greenhouse effect; Greenhouse gases; Irrigation; Methane; Rice; Rice fields; Stubble; China; Shandong China
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/792/1/012051

Abstract The field experiments were conducted on garlic stubble rice fields in southwestern Shandong Province. The experimental program was designed and the influence of different agricultural management measures on CH 4 emission flux and the factors affecting CH 4 emission were analyzed. The results show that although temperature affects CH 4 emissions from paddy fields, it is not the only influencing factor. Compared with submerged irrigation+no basal fertilizer method, the CH 4 emission flux of intermittent irrigation+basal fertilizer method is significantly larger; under the same submerged irrigation method, applying basal fertilizer is beneficial to CH 4 emission. In the submerged irrigation+basal fertilizer mode, tillering fertilizer is more conducive to methane emission than panicle fertilizer. The use of intermittent irrigation method to apply appropriate amount of base fertilizer and tiller fertilizer can effectively control the increase of rice yield and the reduction of CH 4 emissions in the rice field. The above operations can increase agricultural production and income and reduce greenhouse gas emissions.