.png){kind=icon}
.png){kind=icon}
Return
Impact of controlled-release fertilizer on nitrogen use efficiency, greenhouse gas emissions, and environmental sustainability in sunflower cropping systems
.png){kind=icon}
PRE
AI
B
X
L
C
X
Q
L
L
DOI：10.1016/j.eja.2025.127963.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
As environmental concerns related to agricultural practices intensify, the excessive use of nitrogen fertilizers has become a major global challenge. Controlled-release fertilizers (CRF) offer a promising strategy to improve agricultural productivity, enhance nitrogen utilization, mitigate ecological impacts, and increase economic returns. This study examined the effectiveness of CRF in enhancing sunflower production and nitrogen use efficiency, as well as in reducing nitrogen losses (including ammonia (NH3) and nitrous oxide (N2O) emissions and nitrogen leaching) across multiple nitrogen treatments during a three-year field experiment. The results showed that CRF significantly increased nitrogen use efficiency by 14.33 % and reduced nitrogen volatilization by 26.56 %, particularly within the first 20 d after fertilization, during which NH3 and N2O emissions were markedly lower than those under traditional nitrogen fertilizer treatments. Furthermore, life cycle assessment (LCA) indicated that CRF substantially decreased environmental impacts, with reductions of 13.03 % in greenhouse gas emissions, 29.05 % in acidification potential, and 29.02 % in eutrophication potential. Under low to medium nitrogen application rates (e.g., N225), delayed nitrogen release further reduced nitrogen loss and alleviated environmental pressure. By integrating LCA with the ecological-economic benefits (BETA) model, this study quantified the ecological and economic value of CRF. The findings demonstrated that CRF delivered high economic returns and considerable environmental benefits within the optimal nitrogen application range, making it an effective approach for sustainable agricultural development. These evaluation methods offer a systematic framework for assessing the environmental and economic outcomes of CRF, providing theoretical support for its broader adoption in agricultural production.
Keywords:
Nitrogen use efficiency
Controlled-release fertilizer
Greenhouse gas
Ecological economic benefit
Journal
IF:
5.5
Papers:
605
Citations:
1.3W
Organization
Cited Papers