ArticleFrontiers in plant science2024
Substituting partial chemical nitrogen fertilizers with organic fertilizers maintains grain yield and increases nitrogen use efficiency in maize.
Article in Frontiers in plant science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Combining Reduced Irrigation with Organic Fertilizer Substitution Enhances Water-Nitrogen Productivity and Soil Carbon-Nitrogen Pools of Maize in Arid Northwest China.Plants (Basel, Switzerland) · 2026Article
- Organic Fertilizer Substitution Regulates Nutrient Availability, Recovery, and Yield in Alpine Rapeseed (Plants (Basel, Switzerland) · 2026Article
- Optimized planting density and organic fertilizer substitution improve maize yield by enhancing dry matter translocation and grain-filling characteristics.Frontiers in plant science · 2026Article
- Organic-chemical fertilizer combination enhances maize yield through coordinated regulation of leaf C-N metabolism, photosynthesis and dry matter partitioning in northeast black soil, China.Frontiers in plant science · 2026Article
- Effect of organic fertilizer substitution on soil fertility and yield in a continuous maize cropping system: evidence from an eight-year long-term field experiment.Frontiers in plant science · 2026Article
- Advancements in the Research and Application of Whole-Plant Maize Silage for Feeding Purposes.Animals : an open access journal from MDPI · 2025Review
- Manipulating the Light Systemic Signal HY5 Greatly Improve Fruit Quality in Tomato.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
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Abstract
Introduction: Long-term application of excessive nitrogen (N) not only leads to low N use efficiency (NUE) but also exacerbates the risk of environmental pollution due to N losses. Substituting partial chemical N with organic fertilizer (SP) is an environmentally friendly and sustainable fertilization practice. However, the appropriate rate of SP in rainfed maize cropping systems in semi-arid regions of China is unknown. Methods: Therefore, we conducted a field experiment between 2021 and 2022 in a semi-arid region of Northern China to investigate the effects of SP on maize growth, carbon and N metabolism (C/NM), and NUE. The following treatments were used in the experiment: no N application (CK), 100% chemical N (SP0, 210 kg N ha Results and discussion: The results found that the SP1 and SP2 treatments improved the assimilates production capacity of the canopy by increasing the leaf area index, total chlorophyll content, and net photosynthetic rate, improving dry matter accumulation (DMA) by 6.2%-10.6%, compared to the SP0 treatment. SP1 and SP2 treatments increased total soluble sugars, starch, free amino acids, and soluble protein contents in ear leaves via increasing the enzymatic reactions related to C/NM in ear leaves during the reproductive growth stage compared with SP0 treatment. The highest plant nitrogen uptake (PNU) and nitrogen recovery efficiency were obtained under the SP2 treatment, and the GY and nitrogen agronomic efficiency were higher than the SP0 treatment by 9.2% and 27.8%. However, SP3 and SP4 treatments reduced DMA and GY by inhibiting C/NM in ear leaves compared to SP0 treatment. Mantel test and SEM results revealed that SP treatments indirectly increased GY and PNU by directly positively regulating C/NM in maize ear leaves. Therefore, in the semi-arid regions, substituting 30% of the chemical N with SP could be considered. This fertilizer regime may avoid GY reduction and improve NUE. This study provides new insights into sustainable cultivation pathways for maize in semi-arid regions.
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