Productivity and soil quality of organic forage, quinoa, and grain cropping systems in the dryland Pacific Northwest, USA

Summary

This field-based comparative study evaluated the agronomic and soil health outcomes of three organic cropping systems (forage, quinoa, and grain) under dryland conditions in the Pacific Northwest. The research addresses the tension between maintaining productivity and enhancing soil quality in organic systems in water-limited environments. As suggested by the journal scope, the work likely contributes empirical data on long-term soil health trajectories and the sustainability trade-offs of crop diversification in low-rainfall regions.

UK applicability

The dryland Pacific Northwest climate and soil conditions (lower rainfall, sandy or silt loams) differ substantially from most UK farming environments, which are predominantly temperate and mesic. However, the methodological approach to assessing organic system sustainability through integrated soil and productivity metrics may inform UK organic farming research, particularly in drier regions of the south and east.

Key measures

Crop yield; soil organic matter; soil microbial biomass; soil nutrient content; soil physical properties; potentially soil carbon storage and economic returns

Outcomes reported

The study compared productivity, soil quality metrics, and economic performance across organic forage, quinoa, and grain cropping systems in dryland conditions. It measured crop yields, soil physical and biological properties, and nutrient cycling indicators.

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