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Assessing nitrogen balance and use efficiency across multiple scales on pasture based dairy farms and implications for nitrogen management and policy

delete2026-05-06
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OA
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P
Philip M. Murphy *
P
Paul Murphy
D
David P. Wall
DOI:10.1016/j.agsy.2026.104746delete
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Abstract

Abstract

En 中文
• Large variability in nitrogen source pressure at field scale is not apparent at the farm scale • “Subzones” of the total farm area have disproportional differences in surplus N values • Dairy fields have the highest NBAL of the three subzones on average • Grassland management factors not significant for N at field scale • Long-term N management strategies (3 to 5 year) may be more effective than annual planning
Keywords:
Nitrogen balance
Use efficiency
Pasture-based agriculture
Dairy
Nutrient losses
Field scale management
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Agricultural Systems cover
Agricultural Systems
IF:
6.1
Papers:
3.8K
Citations:
1.4W

Organization

E
environment research centre
Scholars:
7
Papers: 4
Citations: 0
U
university college dublin
Scholars:
2.5W
Papers: 2.2W
Citations: 22
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