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Regional patterns and drivers of 15N fertilizer fate across China’s wheat systems: Integrating meta-analysis and machine learning

delete2026-07-30
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PRE
AI
Y
Yan’ge Yan
S
Shuiqin Zhang
Y
Yingqiang Zhang
M
Meng Xu
J
Jiukai Xu
Y
Yanting Li
B
Bingqiang Zhao
梁
梁媛 (Liang Yuan) *
DOI：10.1016/j.fcr.2026.110654delete
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Abstract

Abstract

En 中文
• Fertilizer-15N fate at national scale: 37.3% uptake, 31.5% residual, and 31.4% loss. • Regional yield (CC>SC>NC) and 15N uptake% (CC>NC>SC) rankings are misaligned. • Soil total N, pH, and temperature are key determinants of fertilizer-N fate. • A clear N rate threshold exists: ¹ ⁵N uptake% declines sharply above 230 kg N ha−1. • Attainable ¹ ⁵N uptake potential is 48.4% nationally, with the largest gap in SC.

Journal

Field Crops Research cover
Field Crops Research
IF:
6.4
Papers:
6.4K
Citations:
2.8W

Organization

C
chinese academy of agricultural sciences
Scholars:
4.8W
Papers: 3.0W
Citations: 43
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