ArticleFrontiers in plant science2026
Optimization of controlled-release fertilizer and urea ratio to increase maize yield by improving dry matter accumulation and translocation in black soil.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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9 authors.
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Abstract
Nitrogen is the principal mineral nutrient limiting maize yield formation and effective nitrogen management is thus key for maximizing yield. However, conventional urea releases nutrients rapidly and the supply of nutrients is often mismatched with crop demand, leading to early-stage nutrient loss and late-stage nitrogen deficiency. Therefore, reasonable nitrogen management is a key measure for increasing maize yield. This study aimed to evaluate the effects of different ratios of controlled-release fertilizer (CRF) and urea on changes in the accumulation, distribution, and translocation of dry matter across the entire growth period of maize to optimize nitrogen management, yield, and maize production efficiency. A two-year field experiment (2023-2024) was performed to test the effects of different CRF-N to urea-N ratios [1:0 (N10, controlled-release fertilizer), 3:7 (N37), 5:5 (N55), 7:3 (N73), and 0:1 (N01, conventional urea), no N (N0) as control] on dry matter accumulation, distribution, translocation and yield. The results showed that dry matter accumulation followed a typical sigmoidal ("S-shaped") trajectory. The dry matter accumulation advantage of N73 (70% CRF) treatment was most significant after the V6 stage, and dry matter accumulation at R6 increased by 14.58% and 10.33% compared with that in N10 treatment in 2023 and 2024, respectively. With the progress of growth period, the distribution of dry matter among organs was changed, and N73 treatment effectively promoted dry matter allocation to the ear. Logistic equation fitting indicated that N73 treatment moderately delayed the time of the maximum dry matter accumulation rate (
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