Increasing rice yield with low ammonia volatilization by combined application of controlled-release blended fertilizer and densification

• DOI: 10.1371/journal.pone.0318177
• Publication Date: 2025-02-10T18:36:12Z
• Authors: Xiaowei Ma; Zijuan Ding; Ren Hu; Xuexia Wang; Jun Hou; Guoyuan Zou; Bing Cao
• Keywords: Volatilisation

Controlled-release blended fertilizer (CRBF) and densification can increase rice yield nitrogen (N) efficiency. However, the effects of CRBF combined with on yield, N absorption, economic benefits fertilization, ammonia volatilization loss remain unclear. A 2-year field experiment was conducted using five treatments: no (control, CK), conventional application (farmer's fertilization practice, FFP), optimal (OPT), single basal (CRBF), (CRFDP). Moreover, absorption use efficiency, benefit, were evaluated. CRFDP significantly increased dry matter, efficiency by 11.6%-30.5% 90.2%-160.0%, finally 33.3% 26.1% in 2021 2022, respectively. Compared FFP, 16.7% reduction input benefit 46.9% 38.3% CRBF, total 2.7% 15.2%, 3.5% 7.6%, 10% 8.3% reduced intensity 62.5% 60.8%, cumulative 46.3% 50.3% also lowered NH4+-N surface water 69.0%-93.8% 57.8%-89.7% The combination could improve reduce volatilization. These results might provide data theoretical support for high a new environmentally friendly resource-efficient model cultivation.