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Soil sampling requirements in Oklahoma

Soil sampling requirements in Oklahoma

State rules: Oklahoma Registered Poultry Feeding Operations Act, Title 2 O.S. Section 10-9.7.

Soil sampling in Oklahoma: frequency, area, depth and cores

How often do you need to soil sample in Oklahoma?

  • Oklahoma Registered Poultry Feeding Operations Act, nutrient management plan Conditional Operations in a non-nutrient-limited watershed and non-nutrient-vulnerable groundwaters: at least once every 3 years on each land application area. Operations in a nutrient-limited watershed and nutrient-vulnerable groundwater: every year on each land application area, before the first application of the calendar year. Result valid: Analysis data must be dated before the land application and kept for at least 6 years.
Soil sampling rules in Oklahoma, with the exact wording of each source
Country / region Purpose / programme Time / frequency Area per sample Method Depth Cores Status and source
United States
OklahomaUnited StatesOklahoma only. Other states set their own rules.Soil test on poultry waste land application areasOklahoma Registered Poultry Feeding Operations Act, nutrient management plan
  • Repeat Operations in a non-nutrient-limited watershed and non-nutrient-vulnerable groundwaters: at least once every 3 years on each land application area
  • Repeat Operations in a nutrient-limited watershed and nutrient-vulnerable groundwater: every year on each land application area, before the first application of the calendar year
  • Result valid Analysis data must be dated before the land application and kept for at least 6 years
Not specifiedNot specifiedNot specifiedNot specifiedConditionalOklahoma Registered Poultry Feeding Operations Act (Title 2 O.S.), text as compiled by the Oklahoma Department of Agriculture, Food, and Forestry, reference date 29 August 2024 (PDF)
Who it applies to, the exact wording and every source
Who it applies to
Poultry feeding operations under the Act, meaning a property or facility where poultry are confined and fed 45 days or more in any 12 months, crops or other vegetation are not sustained over any part of it in the normal growing season, and over 10 tons of poultry waste are produced a year. Applies to each land application area.
Laboratory and analysis
Soil pH and plant-available nutrients, at a minimum nitrogen, phosphorus and potassium.
In force from
Under review
Legal text
Oklahoma Registered Poultry Feeding Operations Act, Title 2 O.S. Section 10-9.7, Section 10-9.7, subsections F, G and H

The wording in the source

Timing

  • Every poultry feeding operation located in a non-nutrient-limited watershed and non-nutrient-vulnerable groundwaters shall perform soil testing on each land-application area and poultry waste testing at least once every three (3) years

    2 O.S. Section 10-9.7(F)

  • Every poultry feeding operation located in a nutrient-limited watershed and nutrient-vulnerable groundwater shall perform an annual soil test on each land-application area prior to the first application of the calendar year.

    2 O.S. Section 10-9.7(G)

  • Soil and poultry waste analysis data shall be retained by the poultry feeding operation for a minimum of six (6) years.

    2 O.S. Section 10-9.7(H)(1)

  • All soil and poultry waste analysis data shall be dated prior to land application.

    2 O.S. Section 10-9.7(H)(2)

Who it applies to

Laboratory and analysis

Sources

Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team.

United States: federal rules and every other state

Soil sampling regulations in every country

Report an outdated requirement: info@geopard.tech

Plan the points to the rule that applies

Set the area per sample, the cores and the depth your rule asks for. GeoPard places the points on a grid or by zone, routes the walk, prints the labels and takes the plan to the field on a phone.

Create a sampling plan See the Soil Sampling Planner

A planning reference built from official sources, not legal advice. Rules apply by jurisdiction, nutrient, land use and programme: check the current official text and your laboratory’s instructions before fieldwork.

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