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Seasonal soil water status, non-growing season percolation and nitrate leaching under experimentally redistributed precipitation in surface drip-irrigated onion on sandy loam: A three-year lysimeter study
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DOI：10.1016/j.agwat.2026.110654.png)
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Abstract
En 中文
• Redistributed rainfall increased non-growing season percolation at constant annual totals. • Nitrate leaching was controlled by percolation volume, not concentration shifts. • Cultivation-period percolation was minor relative to non-growing season losses. • Stronger redistribution reduced yield and N uptake despite irrigation. • End-of-season matric potential reflected drainage-prone hydraulic states.
Keywords:
Climate change
Irrigation scheduling
Soil matric potential
Evapotranspiration
Water balance
Nitrogen uptake
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