Summary
This 2022 field trial from Colorado State University evaluated whether infrequent compost applications could enhance soil organic carbon and pasture productivity across two contrasting systems. Compost proved effective at increasing plant productivity and building soil carbon in irrigated pasture, but failed to generate comparable benefits in degraded rangeland under the conditions studied. The findings suggest that amendment strategy efficacy is contingent on baseline soil properties and hydrological context.
UK applicability
The findings may have limited direct applicability to UK systems given the focus on irrigated pastures and semi-arid rangelands, which differ substantially from UK temperate grasslands and rainfall patterns. However, the principle that compost effectiveness varies by soil type and hydrological regime is relevant to UK pasture management decision-making.
Key measures
Soil organic carbon concentration and stocks; plant productivity metrics; soil amendment application rates and timing
Outcomes reported
The study measured plant productivity, soil organic carbon accumulation, and soil carbon stocks in response to infrequent compost applications across two contrasting pasture systems. Differential responses were observed between irrigated pasture and degraded rangeland under field conditions.
Topic tags
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.