ArticleFrontiers in plant science2025
Split potassium application delays senescence and increases grain yield in winter wheat grown on sandy and silt loam soils.
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 4 papers.
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4 citing papers in PubMed.
- Split Potassium Fertilization Modulates Endogenous Hormone Homeostasis to Optimize the Grain-Filling Process and Mitigate High-Temperature Damage in Rice.Plants (Basel, Switzerland) · 2026Article
- Optimizing nitrogen and potassium fertilization enhances yield-protein balance in soft wheat.BMC plant biology · 2026Article
- Impact of split application of potassium fertilizer on yield, quality, and economic benefits of winter wheat.Frontiers in plant science · 2026Article
- 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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8 authors.
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Abstract
Background: The judicious application of potassium (K) fertilizer plays a critical role in increasing potassium use efficiency, leaf photosynthesis capacity, and winter wheat yield. However, there is no unified conclusion on the yield-increasing effect of split K fertilizer application. In addition, the response mechanism of winter wheat to split K application across different soil types remains unclear. Aims: The aim of this study was to investigate the mechanism underlying the effects of split K application on winter wheat yield across different soil types and to provide a basis for optimized and judicious K fertilization in the Huang-Huai-Hai plain (3HP). Methods: A two-year field experiment with winter wheat from 2016 to 2018 on silty and sandy loam, using three K application levels (K0, no K; K1, 96 kg ha Results: The split K application increased the K and nitrogen (N) accumulation of winter wheat plants compared to a single application. It also enhanced the flag leaf SPAD value, net photosynthetic rate (Pn), superoxide dismutase (SOD) activity, catalase (CAT) activity, and soluble protein content after flowering, while decreasing the malondialdehyde (MDA) content in both soil types. Additionally, split K application improved the grain-filling rate at 25 days after flowering, prolonged the active grain-filling period ( Conclusion: This study provides a basis for region-specific and soil-tailored potassium fertilizer management strategies, thereby optimizing resource utilization.
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