ArticleFrontiers in plant science2025
Interactive effects of irrigation and nitrogen management on greenhouse gas emissions and resource efficiency in alfalfa production.
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 1 paper.
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Abstract
Introduction: Mitigating agricultural greenhouse gas (GHG) emissions while maintaining forage productivity is a key challenge under global carbon-neutrality goals. To evaluate the environmental and agronomic trade-offs of irrigation and nitrogen management, a field experiment was conducted in an arid region of Northwest China. Methods: Twelve irrigation-nitrogen treatment combinations were applied to alfalfa (Medicago sativa L.) to quantify N Results: Results showed that soil water-filled pore space and available nitrogen strongly regulated N2O, emissions, with peaks occurring within one week after irrigation or fertilization. Excessive water and nitrogen inputs significantly increased GHG emissions and reduced irrigation water productivity (IWP) and partial factor productivity of nitrogen (PFPN). Discussion and Conclusion: Conversely, the high-water, moderate-nitrogen regime (300 mm irrigation + 120 kg N ha
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