Coverage · Source

EM 9140 — Green Pea Nutrient Management for the Inland Northwest, East of the Cascades

v1.0 (2026-08-23) · EM 9140 — Green Pea Nutrient Management for the Inland Northwest, East of the Cascades

State extension method Computes rates in-app
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Crops covered

Peas

Selectable as an alternate in

ORWA

“The higher rates are recommended when water is not limited during the growing season. When water is limited, choose the lower rate.” — EM 9140, page 3.

Frequently asked

What method does EM 9140 — Green Pea Nutrient Management for the Inland Northwest, East of the Cascades use?

State extension method. Zone Forge computes this source's supported nutrient rates in-app and cites the published method.

Is this free to use?

Yes — Zone Forge's calculators are free and need no signup. This page shows the states and crops EM 9140 — Green Pea Nutrient Management for the Inland Northwest, East of the Cascades covers so you can verify the source behind your recommendation.

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