Maize and wheat root biomass, vertical distribution, and size class as affected by fertilization intensity in two long-term field trials

Summary

This long-term field study examined how contrasting fertilisation intensities shape root system architecture and biomass allocation in maize and wheat, two globally important cereal crops. By measuring root biomass, vertical distribution patterns, and root size classes across different fertiliser treatments, the authors provide empirical data on the belowground consequences of nutrient management intensity—a dimension often overlooked in agronomic assessments focused on shoot productivity. The findings contribute to understanding how fertilisation strategies influence soil-plant interactions and root-derived organic matter inputs to soil.

UK applicability

The study's findings on cereal root responses to fertilisation are potentially relevant to UK arable practice, particularly for informing nutrient management strategies that optimise both yield and soil carbon accumulation. However, direct applicability depends on whether the trial conditions (climate, soil type, cultivars) approximate UK production environments, which cannot be confirmed from the title alone.

Key measures

Root biomass (dry weight), vertical distribution of roots by soil depth, root size class distribution, fertilisation intensity regimes

Outcomes reported

The study quantified root biomass, vertical distribution patterns, and root size class composition in maize and wheat across contrasting fertilisation intensity treatments in long-term field trials. Measurements characterised how nutrient management strategies influence belowground biomass allocation and soil-plant interactions.

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