Biochar-based fertilizer decreased while chemical fertilizer increased soil N2O emissions in a subtropical Moso bamboo plantation
| Autor: | Yongfu Li, Jiashu Zhou, Junhui Chen, Tian-Hua Qu, Ziwen Lin, Xiaoping Zhang, Xinzhang Song, Zheke Zhong, Lukas Van Zwieten, Yanjiang Cai, Hailong Wang, Yu Luo |
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| Rok vydání: | 2021 |
| Předmět: |
Bamboo
010504 meteorology & atmospheric sciences Urease biology Biomass 04 agricultural and veterinary sciences Subtropics engineering.material 01 natural sciences Agronomy Biomass c Biochar 040103 agronomy & agriculture biology.protein engineering 0401 agriculture forestry and fisheries Fertilizer Water content 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | CATENA. 202:105257 |
| ISSN: | 0341-8162 |
| DOI: | 10.1016/j.catena.2021.105257 |
| Popis: | While there is a sound understanding of the range of mechanisms by which biochar can contribute to the mitigation of soil N2O emissions, a paucity of information remains on the efficacy and mechanisms associated with biochar-based fertilizer (BF). The present 12-month field trial aimed to: (1) investigate the responses of the seasonal variations in soil N2O emissions and environmental factors, including soil temperature and moisture content, concentrations of NH4+-N, NO3−-N, water-soluble organic N (WSON), microbial biomass N (MBN), water-soluble organic C (WSOC) and microbial biomass C (MBC), and urease and protease activities, to application of BF, chemical fertilizer (CF) and a mixture of BF and CF (BCF) within a Moso bamboo plantation, and (2) reveal contributions of variation in soil properties to change in soil N2O emissions. The fertilized treatments matched doses of N, P and K among BF, CF and BCF, with an unfertilized treatment as a control. Compared to the control, BF treatment decreased soil N2O emissions (P |
| Databáze: | OpenAIRE |
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