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Wymagania dotyczące pobierania próbek gleby w Alabamie

Wymagania dotyczące pobierania próbek gleby w Alabamie

Przepisy stanowe: Kodeks Administracyjny Alabamy, Rozdział 335-6-7 (ADEM, działalność związana z karmieniem zwierząt). Wytyczne stanowe: Alabama Cooperative Extension System, porady dotyczące precyzyjnego pobierania próbek gleby.

Pobieranie próbek gleby w Alabamie: częstotliwość, powierzchnia, głębokość i rdzenie

Jak często należy pobierać próbki gleby w Alabamie?

Ile akrów można pokryć jedną próbką gleby w Alabamie?

Jak głęboko należy pobierać próbki gleby w Alabamie?

Ile rdzeni potrzeba do pobrania jednej próbki gleby w Alabamie?

Ile próbek gleby potrzeba na pole o powierzchni 100 akrów w Alabamie?

Alabama Cooperative Extension System, precision soil sampling advice: Jednorodne pole o powierzchni 100 akrów wymaga co najmniej 40 próbek kompozytowych, z których każda nie ma więcej niż 2,5 akra powierzchni, i co najmniej 320 rdzeni łącznie, po 8 na próbkę.

Próbki i rdzenie dla dowolnego rozmiaru pola

Soil sampling rules in Alabama, with the exact wording of each source
Country / region Purpose / programme Time / frequency Area per sample Method Depth Cores Status and source
United States
AlabamaUnited StatesAlabama only. Other states set their own rules.Soil tests on fields that receive animal wasteADEM animal feeding operation rules (AFO and CAFO)
  • Repeat At a frequency that meets NRCS technical standards and guidelines, and as often as needed to protect groundwater and surface water
Not specifiedAccepted standard soil sampling procedures, on each field.0 to 3 inches in sod crops. Depth of the plow layer in cultivated crops.Not specifiedConditionalAla. Admin. Code ch. 335-6-7 (Alabama Legislative Services Agency)
Who it applies to, the exact wording and every source
Who it applies to
Animal feeding operations in Alabama, for each field where animal waste or wastewater has been or will be land applied.
Laboratory and analysis
Methods in the Southern Region soil test bulletins (Southern Cooperative Service Bulletins 289 and 374), the Alabama crop soil test recommendations (Auburn Series No. 178), or another method the Director approves. Analyses include pH and lime requirement, extractable phosphorus, and extractable zinc, copper, arsenic and other selected metals where the qualified credentialed professional finds them probable at high levels.
In force from
Under review
Legal text
Alabama Administrative Code, Chapter 335-6-7 (ADEM, animal feeding operations), Rule 335-6-7-.26(5) and Rule 335-6-7-.03

The wording in the source

Timing

  • Soil samples shall be collected and analyzed at a frequency that meets NRCS technical standards and guidelines, and as often as is necessary to ensure protection of groundwater and surface water quality.

    Rule 335-6-7-.26(5)(b)

Method

Depth

  • The surface soils (0-3 inches in sod crops and depth of plow layer in cultivated crops) of each field where waste/wastewater has been or will be land applied shall be sampled according to accepted standard soil sampling procedures.

    Rule 335-6-7-.26(5)

Who it applies to

  • of each field where waste/wastewater has been or will be land applied

    Rule 335-6-7-.26(5)

  • the requirements of this Chapter are applicable to all new and existing AFOs in the State.

    Rule 335-6-7-.03(2)

Laboratory and analysis

  • Soil pH and lime requirement for the soil and crop to be grown.

    Rule 335-6-7-.26(5)(b)1

  • Extractable phosphorus.

    Rule 335-6-7-.26(5)(b)2

  • Soil Test Methods for the Southern Region of the United States, 1983, Southern Cooperative Service Bulletin, 289, University of Georgia, Athens, Georgia

    Rule 335-6-7-.26(5)(a)

  • Other analytical methodology(s) as may be approved by the Director or his designee.

    Rule 335-6-7-.26(5)(a)3

  • Reference Soil and Media Diagnostic Procedures for the Southern Region of the United States, 1992, S.J. Donahue (ed.), Southern Cooperative Service Bulletin 374

    Rule 335-6-7-.26(5)(a)1

  • Soil Test Fertilizer Recommendations For Alabama Crops, 1994, J.F. Adams, C.C. Mitchell, and H.H. Bryant, Agronomy And Soils Department Series No. 178 (as amended), Auburn University

    Rule 335-6-7-.26(5)(a)2

  • Extractable zinc, copper, arsenic, and other selected metals, if it is determined by the QCP that it is probable that one or more metals … present in sufficiently high concentrations in the land applied waste or wastewater, or naturally present in the soil

    Rule 335-6-7-.26(5)(b)3

Sources

Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team.
AlabamaUnited StatesAlabama only. Other states set their own rules.Grid and zone sampling for lime and fertilizerAlabama Cooperative Extension System, precision soil sampling advice
  • Repeat Grid sampling every 4 to 5 years, with zone sampling in between
Grids of 2.5 acres or less. Up to 5 acres in relatively uniform fields. Zones of 10 acres or less.Grid sampling to set a baseline in new or problem fields, then management zones. Hand sampling: cores in a circle around the grid center. Automated samplers: an S pattern through the grid. A zigzag through each zone.Not specifiedEight to twelve cores per grid or zone sample. At least ten to fifteen for zones of 10 acres or less, more for larger zones.Official guidanceACES ANR-3181, Precision Soil Sampling Strategies for Site-Specific Nutrient Management
Who it applies to, the exact wording and every source
Who it applies to
Advice for Alabama fields from the Alabama Cooperative Extension System (Auburn University and Alabama A and M). Not law.
In force from
Under review
Legal text
ACES ANR-3181, Precision Soil Sampling Strategies for Site-Specific Nutrient Management (2025)

The wording in the source

Timing

  • Ideally, grid sampling should be conducted every 4 to 5 years in each field, while zone sampling should be used in between to be more effective with both nutrient applications and sampling costs.

    ANR-3181, Summary

Area per sample

  • The size of sampling grids can range between 1 and 5 acres, but a smaller grid size of 2.5 acres or less is recommended to accurately capture variability in soil pH and nutrient levels within fields. Larger grid sizes (up to 5 acres) are often used in relatively uniform fields to reduce labor and sampling costs.

    ANR-3181, Grid Sampling

  • sampling grids should be 2.5 acres or less for grid sampling, and management zones should be 10 acres or less for zone sampling.

    ANR-3181, Summary

Method

  • grid sampling should be used in all newly cropped fields; in fields that have been brought back into production after a few years; in fields with past management issues; or in any field where a baseline of nutrient variability needs to be established.

    ANR-3181, Choice of Precision Soil Sampling Strategy

  • point sampling is usually the preferred method, where eight to ten soil cores are collected in a circular pattern (in a radius of 30 to 50 feet depending on grid size) around the centroid point within a grid.

    ANR-3181, Grid Sampling

  • an S pattern (or Z pattern) is more common when soil samples are collected using an automated soil sampler mounted on a utility terrain vehicle (UTV).

    ANR-3181, Grid Sampling

  • one of the most common techniques is to follow a zigzag travel pattern through the zone, randomly collecting soil cores at regular intervals

    ANR-3181, Zone Sampling

Cores

  • an adequate number of soil cores (eight to twelve) should be collected within each grid or zone to make a composite sample.

    ANR-3181, Summary

  • at least ten to fifteen cores should be collected for zones of 10 acres or less and the number of soil cores should be increased accordingly for zones larger than 10 acres.

    ANR-3181, Zone Sampling

Sources

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

Stany Zjednoczone: przepisy federalne i wszystkie inne przepisy stanowe

Przepisy dotyczące pobierania próbek gleby w każdym kraju

Zgłoś nieaktualne wymaganie: info@geopard.tech

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