ArticleFrontiers in plant science2025
Controlled-release fertilizer affects leaf nitrogen allocation and photosynthesis to improve nitrogen use efficiency and yield in the sunflower field.
Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Estimation of leaf nitrogen content in fruit trees within Arid Oasis Orchards using UAV-based spectral-texture fusion.BMC plant biology · 2026Article
- Controlled-release fertilizer programs differentially affect leaf nutrition and nutrient factor productivity in mature HLB-affected 'Valencia' sweet orange trees in Florida.Frontiers in plant science · 2026Article
- Controlled-release fertilization reshapes maize yield through plant-soil synchrony: shifting from nitrogen supply intensity to synchronization-driven vegetative remobilization.Frontiers in plant science · 2026Article
- Blending sludge alkaline hydrolysate and urea affects grape yield and quality by regulating soil bacterial communities.Frontiers in plant science · 2025Article
- Controlled-release fertilizers increase sunflower yield by regulating soil nitrogen, photosynthesis, and root structure in arid regions.Frontiers in plant science · 2025Article
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7 authors.
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Abstract
Introduction: Nitrogen (N) can significantly affect the photosynthetic rate (Pn) of plants. Under traditional nitrogen fertilization (TNF) or inappropriate nitrogen application, leaf N is often redistributed to support the seed protein accumulation rather than the photosynthesis in the later stages of crop growth. Controlled-release fertilizers (CRF) have been reported to effectively reduce the nitrogen loss by matching the release pattern with crop N demand, thus increasing the yield. However, the changes in N allocation to enhance the photosynthesis under CRF have rarely been addressed. Methods: A two-year field experiment was conducted in the Hetao Irrigation District, Inner Mongolia, China from 2019 to 2020 to evaluate the effects of different fertilization strategies on soil NO Results: The results demonstrated that applying CRF at an appropriate rate maintained a high level of photosynthetic nitrogen content in the leaves during the later growth stages. This rate ensured a suitable soil NO Discussion: The correlation analysis confirmed a strong positive relationship between leaf N redistribution and photosynthetic efficiency, demonstrating the potential of CRF to improve the photosynthetic efficiency, optimize the N management, and promote the environmental sustainability in sunflower cultivation.
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