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Researchers and growers urge restoration of cover‑crop nitrogen scavenging credits to protect groundwater
Summary
Scientists, USDA researchers and farmers told the expert panel that winter non‑legume cover crops can substantially reduce nitrate leaching and that credits in the A–R accounting system help drive adoption, research and water‑quality benefits.
Multiple presentations at the State Water Resources Control Board listening session emphasized winter non‑legume cover crops as a practical means to reduce nitrate leaching during wet months and urged reinstatement of cover‑crop credits in the irrigated lands accounting framework.
USDA scientist Eric Brennan (video submitted) summarized long‑term Central Coast research showing winter cover crops can reduce nitrate leaching by roughly 60–75% in multiple field studies. Researchers from Stanford and other institutions described unpublished and ongoing…
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