Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (2): 298-303.DOI: 10.16178/j.issn.0528-9017.20240533

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Effects of different fertilization strategies on rice yield and nitrogen use efficiency

ZHENG Ting1,2(), CHEN Hao2, REN Yu2, ZHANG Yuhong2, LU Zhiwen3, WU Hao3, LU Changying1,4, DONG Linlin1,4()   

  1. 1.National Agricultural Experimental Station for Soil Quality,Suzhou 215155,Jiangsu
    2.Taicang Agricultural Technology Extension Center of Jiangsu Province,Taicang 215400,Jiangsu
    3.Economic Development and Rural Work Office of Chengxiang Town,Taicang City,Jiangsu Province,Taicang 215400,Jiangsu
    4.Suzhou Academy of Agricultural Sciences,Suzhou 215105,Jiangsu
  • Received:2024-07-03 Online:2026-02-28 Published:2026-03-07

Abstract:

Fertilizer application is crucial for achieving stable and high yields in rice. To investigate the effects of different fertilization strategies on rice yield and nitrogen use efficiency,a field experiment was conducted in this study. Four treatments were established:one-time basal application of slow-release blended fertilizer (H),basal application of slow-release blended fertilizer combined with silicon-containing panicle fertilizer at the booting stage (HG),basal application of rice formula fertilizer with split topdressing of urea and lodging-resistant panicle fertilizer (PK),and basal application of rice formula fertilizer with split topdressing of urea as both tillering and panicle fertilizers (PN). Indicators such as rice yield and partial factor productivity of nitrogen fertilizer under different fertilization strategies were systematically measured. The results showed that the partial factor productivity of nitrogen fertilizer of treatment H (44.45 kg·kg-1) was significantly (p<0.05) higher than that of the other treatments. In terms of yield,treatment H (10.00 t·hm-2) was second only to treatment PN (10.54 t·hm-2),and both were significantly higher than treatments HG (8.99 t·hm-2) and PK (8.32 t·hm-2). In conclusion,the one-time basal application of slow-release blended fertilizer not only maintains stable rice yield but also significantly improves nitrogen use efficiency,demonstrating promising application potential.

Key words: fertilization strategy, rice, yield, harvest index, partial factor productivity of nitrogen

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