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Comparative Analysis of Grazing Regimes (Beira Baixa)

Context & Location​

  • Beira Baixa, mainland Portugal
  • Mediterranean climate
  • Grassland-based pastoral system

Objectives​

  • Compare soil health outcomes under different grazing regimes
  • Assess the results of soil health parameters in a plot without soil corrections in the last years

Problem Description​

Although this farm is an organic farm, it has problems related to poor soil nutrition, drainage, and productivity. It is important to implement a well-managed grazing system to improve soil health and nutrition.

Proposed Approach / Pilot Logic​

Implementation of grazing and bale grazing in a low productivity plot.

Data & Measurements​

  • Soil chemistry: pH, organic matter, N, P, K, Ca, S, Mo
  • Soil biology: microbial diversity and pathogen presence
  • Indicators of compaction and nutrient excess

Key Findings (Preliminary)​

  • Absence of micronutrients such as molybdenum, copper, cobalt, nickel, boron and zinc
  • High saturation restricting the capacity of retain nutrient cations
  • High potential for mycotoxin production

Expected Value​

  • Improve nutritional value of pasture for livestock
  • Improve organic matter status
  • Improve micronutrients availability in soil

Why this pilot matters​

It highlights that organic management alone is not sufficient, and that adaptive grazing and regenerative soil practices are essential to restore soil function and long-term productivity.