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Krav på jordprovtagning i Pennsylvania

Krav på jordprovtagning i Pennsylvania

Statliga regler: 25 Pa. Code Kapitel 83, Underkapitel D, Näringshantering. Statliga riktlinjer: Provtagningsråd från Penn State Extension.

Jordprovtagning i Pennsylvania: frekvens, area, djup och kärnprovtagning

Hur ofta behöver man ta jordprover i Pennsylvania?

När på året bör jordprover tas i Pennsylvania?

Hur många hektar kan ett jordprov täcka i Pennsylvania?

Hur djupt bör jordprover tas i Pennsylvania?

  • Penn State Extension sampling advice Official guidance Plow depth in cultivated fields. No-till: one sample to 6 inches (15.24 cm) and one to 2 inches (5.08 cm). Permanent pasture: 3 to 4 inches (7.62 to 10.16 cm).

Hur många kärnor går det till ett jordprov i Pennsylvania?

Hur många jordprover behövs för ett 40 hektar stort fält i Pennsylvania?

Penn State Extension sampling advice: Ett enhetligt fält på 100 hektar behöver minst 10 sammansatta prover på högst 10 hektar vardera, och minst 150 kärnor totalt, 15 per prov.

Prover och kärnor för alla fältstorlekar

Soil sampling rules in Pennsylvania, with the exact wording of each source
Country / region Purpose / programme Time / frequency Area per sample Method Depth Cores Status and source
United States
PennsylvaniaUnited StatesPennsylvania only. Other states set their own rules.Soil test for P, K and pH in a nutrient management planNutrient Management Act (Act 38), nutrient management plans
  • Repeat Every crop management unit at least every 3 years from the date of the last test, once the plan is approved
  • Result valid For the initial plan, tests taken within the previous 3 years are acceptable
Not specifiedOne soil test per crop management unit: a field, part of a field or group of fields with the same rotation and manure history and similar production capability, managed as one unit.Not specifiedNot specifiedConditional25 Pa. Code Section 83.292
Who it applies to, the exact wording and every source
Who it applies to
Nutrient management plan operations: concentrated animal operations (8 or more animal equivalent units where animal density exceeds 2 AEUs per acre on an annualized basis), operations that submit a plan voluntarily, and operations required to develop compliance plans under section 506(j) of the Act. Soil tests for every crop management unit.
Laboratory and analysis
Accurate test procedures; the Penn State recommended procedures in Recommended Soil Testing Procedures for the Northeastern United States (Bulletin 493) may be used, others need Commission approval. The plan lists P, K and pH results, the test date and the lab name.
In force from
1 October 2006
Legal text
25 Pa. Code Chapter 83, Subchapter D, Nutrient Management, Section 83.292(e)

The wording in the source

Timing

Method

  • When developing the initial plan, soil tests shall be conducted for each crop management unit on the operation, to determine the level of phosphorus (as P), potassium (as K), and soil pH

    25 Pa. Code Section 83.292(e)

  • The portion of cropland, hayland and pasture, including a field, a portion of a field, or group of fields, on an agricultural operation that has a unique management history (same rotation and manure history), similar production capability, and that will be managed uniformly as a distinct unit.

    25 Pa. Code Section 83.201, definition of crop management unit

Who it applies to

Laboratory and analysis

  • The soil test procedures used must provide accurate test results. The procedures recommended by the Pennsylvania State University and published in Recommended Soil Testing Procedures for the Northeastern United States, Bulletin #493, published by the University of Delaware, may be used to meet this requirement. Other procedures shall be approved by the Commission.

    25 Pa. Code Section 83.292(e)(1)

  • The plan must include an appendix containing a summary of the results of the soil test analyses for each crop management unit showing the following:

    25 Pa. Code Section 83.292(e)(3)

  • The date of the soil tests and the name of the lab performing the tests.

    25 Pa. Code Section 83.292(e)(3)(iv)

In force

Sources

Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team.
PennsylvaniaUnited StatesPennsylvania only. Other states set their own rules.Routine soil fertility sampling for cropland and foragePenn State Extension sampling advice
  • Repeat At least every 3 years, or when the cropping system changes significantly
  • Season Fall is the best time logistically. Before a forage seeding: at least 6 months ahead.
One sample should not represent more than 10 to 20 acres (4.05 to 8.09 ha)Cores at random over the field, between old crop rows; separate samples from known problem areas.Plow depth in cultivated fields. No-till: one sample to 6 inches (15.24 cm) and one to 2 inches (5.08 cm). Permanent pasture: 3 to 4 inches (7.62 to 10.16 cm).At least 15 to 20 spots at random over the fieldOfficial guidancePenn State Extension, Soil Fertility Management for Forage Crops: Pre-establishment
Who it applies to, the exact wording and every source
Who it applies to
Advice for Pennsylvania fields from Penn State Extension. Not law.
In force from
Under review
Legal text
Penn State Extension, Soil Fertility Management for Forage Crops: Pre-establishment (updated August 2025)

The wording in the source

Timing

  • A regular soil testing program should be followed in fields by sampling at least every three years or when the cropping system in a field significantly changes.

    Soil Testing

  • The best time to sample from a logistical standpoint is in the fall. However, when establishing a forage crop, soil samples should be collected at least six months prior to establishment to allow for soil pH adjustments, if necessary.

    Guidelines for Taking a Soil Sample

Area per sample

Method

Depth

Cores

Sources

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

USA: federala regler och alla andra delstater

Jordprovtagningsregler i alla länder

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Planera punkterna enligt den regel som gäller

Ställ in arean per prov, kärnorna och det djup som din regel begär. GeoPard placerar punkterna i ett rutnät eller per zon, ruter promenaden, skriver ut etiketterna och tar med sig planen till fältet på en telefon.

Skapa en provtagningsplan Se jordprovtagningsplaneraren

En planeringsreferens byggd på officiella källor, inte juridisk rådgivning. Regler gäller beroende på jurisdiktion, näringsämne, markanvändning och program: kontrollera den aktuella officiella texten och ditt laboratoriums instruktioner före fältarbete.

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