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Use of models for identification of nitrogen fertilization strategies for filling feeding gaps of cow-calf systems in the Flooding Pampas of Argentina

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  • Berger, Horacio
  • Vogeler, Iris
  • Machado, Claudio F.

Abstract

Nitrogen availability is the primary limitation for the growth of tall fescue, Argentina's most widely cultivated cool-season pasture. Significant yield gaps exist in fescue pastures on commercial farms, where average annual yields are around 5 t/ha, compared to a potential yield of 10 to 15 t/ha. Nitrogen fertilization remains uncommon among cow-calf producers, highlighting the need for a deeper understanding of the complex interactions between nitrogen fertilizer management, stocking rate, and grazing management at the whole-farm level. Considering annual and inter-annual variations in pasture growth could enable regional beef producers to make more informed decisions, improving pasture yield potential, utilization, and overall farm profitability.

Suggested Citation

  • Berger, Horacio & Vogeler, Iris & Machado, Claudio F., 2025. "Use of models for identification of nitrogen fertilization strategies for filling feeding gaps of cow-calf systems in the Flooding Pampas of Argentina," Agricultural Systems, Elsevier, vol. 223(C).
    • Handle: RePEc:eee:agisys:v:223:y:2025:i:c:s0308521x2400341x
    DOI: 10.1016/j.agsy.2024.104191
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    References listed on IDEAS

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