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August 22, 2026Soil Research

Water infiltration and soil penetration resistance in long-term vegetable conservation cultivation

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Authors

LRLucas Raimundo RauberLGLeonardo Khaoê GiovanettiCACarolina Oliveira de Alcântara

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Overview

Long-term field experiment demonstrates sustained water infiltration and reduced penetration resistance across diverse cover crop rotations in no-till soil, suggesting flexible species selection.

Key Points

  • To determine whether cover crop diversification influences water infiltration rates and soil penetration resistance in a long-term no-tillage vegetable production system.
  • Evaluated seven no-tillage vegetable treatments with varying temporal and spatial cover crop diversification against conventional tillage and an adjacent secondary forest reference 17 years after establishment.
  • Measured soil penetration resistance from 0 to 50 cm depths and water infiltration rates via the double-ring infiltrometer method in Humic Dystrudept soil during the 2024/2025 season.
  • Quantified cover crop above-ground biomass production and subsequent onion yields across all rotational schemes.
  • Water infiltration was highest in rotations featuring frequent grasses (NT-Gb, NT-Ga) and recurring velvet bean (NT-La), achieving rates comparable to native secondary forest.
  • Soil penetration resistance was most notably reduced under velvet bean cover (NT-La), while the multi-species consortium (NT-Mixa) generated the highest overall biomass.
  • Differences in soil physical quality among no-till treatments remained minor due to long-term soil structure saturation, and onion yields were unaffected by cover crop biomass volume or species type.

Cite This Study

Rauber et al. (2026) studied this question.

synapsesocial.com/papers/6a895ec3ca7ade938187ce95https://doi.org/10.1071/sr26063
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