Chinese Journal OF Rice Science >
Effects of One-time Basal Application of Controlled-release Blended Fertilizer on Rice Yield and Lodging-related Traits
Received date: 2025-06-16
Revised date: 2025-07-10
Online published: 2026-07-15
【Objective】Lodging is a critical constraint on achieving high and stable rice yields, and optimizing fertilization strategies to improve stem strength represents a key approach for reducing lodging risk in rice production. This study aims to elucidate the effects of different fertilizer types on rice yield and lodging-related traits.【Method】We conducted a field experiment including two japonica rice varieties (Huaidao 5 and Nanjing 9108) and two fertilizer types [conventional fertilizer (CF) and controlled-release blended fertilizer (CRBF)] in a rice-wheat rotation system in Jiangsu Province.【Results】Compared to CF, CRBF significantly increased rice yield (+3.7%), with Huaidao 5 and Nanjing 9108 exhibiting yield increases of 3.3% and 4.1%, respectively. The yield improvement was primarily attributed to the increased effective panicles and total spikelets. Regarding lodging traits, CRBF reduced the lodging index (LI) of the first (−5.3%) and second (−4.2%) basal internodes, while its impact on the third internode was not significant. The reduction of LI was attributed to a greater increase in breaking resistance than in bending moment. In addition, CRBF reduced internode length while increasing internode diameter and stem wall thickness at the first and second basal internodes, thereby enhancing stem strength.【Conclusion】CRBF synergistically improves rice yield and lodging resistance, and provides a scientific basis for high-quality rice production in the rice-wheat rotation system.
LIAO Ping , LIU Ruotong , MENG Yi , WENG Wenan , DU Hanmeng , LI Jun , GAO Hui , ZHANG Hongcheng . Effects of One-time Basal Application of Controlled-release Blended Fertilizer on Rice Yield and Lodging-related Traits[J]. Chinese Journal OF Rice Science, 2026 , 40(4) : 469 -475 . DOI: 10.16819/j.1001-7216.2026.250607
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