Summary
Land degradation is a worldwide concern, and degraded grassland and sown pasture may represent up to 60% of the total grassland area in many regions. In the acid-soil savannas of Eastern Colombia, on-farm beef production declines with the increasing age of tropical pastures, even if grazing is well managed. There is limited knowledge of how pasture age quantitatively affects the performance of grazing cattle in these pastures. Using a set of observational studies, this study aimed to quantify the decline in the performance of animals grazing reasonably stocked and well-managed pastures over time in the Eastern Plains of Colombia in farms that vary in soil texture and pasture management practices. Grass-only farm pastures that were monitored over a span of 6–15 years exhibited a yearly decl
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