ArticleScientific reports2025
Effects of nitrogen fertilizer application rate on lodging resistance for rice (Oryza sativa L.) stem.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Recent physiological, genetic, and management perspectives on lodging resistance in rice.Planta · 2026Review
- Controlled Irrigation Improves Nitrogen Partitioning and Agronomic Nitrogen Use Efficiency in Rice Under Moderate Nitrogen Inputs.Plants (Basel, Switzerland) · 2026Article
- Decoding Lodging Resistance in Elite Chinese Conventional Rice Varieties: A Phenotypic and Biomechanical Perspective.Plants (Basel, Switzerland) · 2025Article
- Applying silicon fertilizer under straw return can reduce nitrogen application, increase rice yield and lodging resistance.BMC plant biology · 2025Article
- Appropriate seeding rate facilitates the simultaneous enhancement of population yield and lodging resistance in direct-seeded rice.Frontiers in plant science · 2025Article
- Effects of N-K management strategies on nutrient uptake efficiency, lodging resistance, and yield in machine-transplanted rice.Frontiers in plant science · 2025Article
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Abstract
Rice yield could be increased by apply higher level of nitrogen fertilizer, but excessive use of nitrogen fertilizer will cause plant lodging. This study aimed to investigate the effect of nitrogen application rate on lodging resistance of rice stems. Four japonica rice varieties with different lodging resistance were used, and six nitrogen fertilizer levels were set up to analyze the morphological structure, mechanical properties, and chemical components of rice stems under such treatments. The dynamic changes of lodging resistance of rice stems under different nitrogen fertilizer application rates were exanimated. The study provide valuable insights for improving lodging resistance and subsequently increasing rice yield. The results indicated that WYD4 exhibited the highest yield under the N1 treatment, whereas JYJ, JJ 525, and JND 667 achieved the highest yield under the N2 treatment. The lodging index of rice varieties fluctuated at the filling stage, peaking 30 days after heading. Moreover, the lodging index increased progressively with higher nitrogen fertilizer application rates, reaching its maximum under the N5 treatment, which corresponded to an increased lodging risk. Specifically, the lodging index under the N5 treatment increased by 0.63-1.21 times compared to the optimal nitrogen fertilizer level. Concurrently, the fracture bending point (s) and lodging resistance of the rice stem exhibited a gradual decline. Additionally, plant height, internode length, and barycenter height significantly increased with rising nitrogen application rates and were positively correlated with the lodging index. Conversely, the wall thickness of the second basal node decreased and showed a negative correlation with the lodging index. Furthermore, the contents of lignin, cellulose, soluble sugar, and starch in the second internode diminished with increasing nitrogen rates, and were positively correlated with the breaking moment.
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