新しい2026年10月リリース予定： ジョンディア同期システムの再設計、レートの最小値と最大値の制限、収量レポートゾーン

ネブラスカ州における土壌サンプリングの要件

ネブラスカ州における土壌サンプリングの要件

州の規則：ネブラスカ州行政法典第130編、家畜排泄物管理規則。州の指針：ネブラスカ大学普及局のサンプリングに関する助言。.

ネブラスカ州における土壌サンプリング：頻度、面積、深度、コア採取

ネブラスカ州では、どのくらいの頻度で土壌サンプルを採取する必要がありますか？

ネブラスカ州では、土壌サンプルを採取するのに最適な時期はいつですか？

  • Nebraska Extension sampling advice Official guidance Late fall or early winter, except for nitrate testing on coarse-textured soils. Where nitrate may have leached over winter or spring, spring sampling before planting is the preferred option.

ネブラスカ州では、1つの土壌サンプルで何エーカーの範囲をカバーできますか？

ネブラスカ州では、土壌サンプルはどのくらいの深さまで採取すべきですか？

  • Nebraska Extension sampling advice Official guidance 0 to 8 inches (0 to 20.32 cm) for pH, lime need, organic matter, P, K, S and Zn. Nitrate: subsurface cores to 3 feet (91.44 cm), 2 feet (60.96 cm) at minimum.

ネブラスカ州では、1つの土壌サンプルを採取するのに何本のコアが必要ですか？

ネブラスカ州で100エーカーの畑を耕作するには、いくつの土壌サンプルが必要ですか？

Nebraska Extension sampling advice: 均一な100エーカーの圃場を採取するには、それぞれ40エーカー以下の複合サンプルを少なくとも3つ、合計で少なくとも30個のコアサンプル（1サンプルあたり10個）が必要です。.

あらゆるフィールドサイズに対応するサンプルとコア

Soil sampling rules in Nebraska, with the exact wording of each source
Country / region Purpose / programme Time / frequency Area per sample Method Depth Cores Status and source
United States
NebraskaUnited StatesNebraska only. Other states set their own rules.Soil phosphorus and nitrogen tests on manure application fieldsLivestock Waste Control Regulations, nutrient management plan
  • Repeat Phosphorus: before the first manure application, then at least once every 5 years while the field is used
  • Repeat Nitrogen: before the first manure application, then at least annually while the field is used
Not specifiedSoil sampling procedures and depths set out in the nutrient management plan. University of Nebraska guidelines may be used; the Department may approve alternatives.Not specifiedNot specifiedConditionalTitle 130, Livestock Waste Control Regulations (effective 23 September 2026)
Who it applies to, the exact wording and every source
Who it applies to
Livestock operations applying for a permit under Title 130, for each field used to land apply manure, litter or process wastewater.
Laboratory and analysis
Soil analytic methods set out in the nutrient management plan. University of Nebraska guidelines may be used; the Department may approve alternatives.
In force from
23 September 2026
Legal text
Nebraska Administrative Code, Title 130, Livestock Waste Control Regulations, Chapter 14, sections 001.10E and 001.11

The wording in the source

Timing

  • Application site soils for phosphorus content before the initial application of manure, litter, or process wastewater and then at least once every five years thereafter if used for application;

    Title 130, Ch. 14, 001.11C

  • Application site soils for nitrogen content before the initial application of manure, litter, or process wastewater, and then sample and analyze at least annually thereafter if used for application;

    Title 130, Ch. 14, 001.11B

Method

  • land application area soil sampling procedures including sampling depths, soil analytic methods

    Title 130, Ch. 14, 001.10E

  • University of Nebraska guidelines for sampling and analysis may be used. The Department may approve alternate methods as appropriate;

    Title 130, Ch. 14, 001.11E

Who it applies to

  • Each applicant for a permit under these regulations shall submit a nutrient management plan that includes at a minimum the following information as applicable:

    Title 130, Ch. 14, 001

  • For each field or field segment used for land application area:

    Title 130, Ch. 14, 001.10

Laboratory and analysis

  • University of Nebraska guidelines for sampling and analysis may be used. The Department may approve alternate methods as appropriate;

    Title 130, Ch. 14, 001.11E

In force

Sources

Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team.
NebraskaUnited StatesNebraska only. Other states set their own rules.Routine soil fertility samplingNebraska Extension sampling advice
  • Season Late fall or early winter, except for nitrate testing on coarse-textured soils. Where nitrate may have leached over winter or spring, spring sampling before planting is the preferred option.
Fields or areas within fields no larger than 40 acres (16.19 ha)Random cores within representative areas for a uniform rate. Management zones or a grid with known sample locations for variable rate.0 to 8 inches (0 to 20.32 cm) for pH, lime need, organic matter, P, K, S and Zn. Nitrate: subsurface cores to 3 feet (91.44 cm), 2 feet (60.96 cm) at minimum.10 to 15 random surface cores per 40-acre area. Six to eight subsoil cores for nitrate.Official guidanceNebraska Extension, G1740 Guidelines for Soil Sampling
Who it applies to, the exact wording and every source
Who it applies to
Advice for Nebraska fields from the University of Nebraska-Lincoln Extension. Not law.
In force from
Under review
Legal text
Nebraska Extension, Guidelines for Soil Sampling (G1740)

The wording in the source

Timing

  • Late fall or early winter is a good time for soil sampling, except for testing nitrate-nitrogen on coarse-textured soils.

    G1740, Time of Sampling

  • If leaching loss of nitrate-nitrogen in the root zone is suspected due to winter or spring precipitation, re-sample the field. Spring sampling prior to planting is the preferred option.

    G1740, Time of Sampling

Area per sample

  • The University of Nebraska–Lincoln recommends that samples represent fields or areas within fields no larger than 40 acres.

    G1740, Collect Soil Cores

Method

  • For uniform fertilizer application, collect soil samples randomly within representative areas of the field. If variable rate fertilizer application is anticipated, sample either in predefined management zones or in a grid pattern with known sample locations.

    G1740, Determine Sampling Approach

Depth

  • In Nebraska, soil test correlation and calibrations for these tests are based on surface samples collected from 0-8 inches.

    G1740, Select Proper Sampling Depth

  • Surface samples are used to determine soil pH, lime need, organic matter, phosphorus, potassium, sulfur and zinc.

    G1740, Select Proper Sampling Depth

  • To accurately predict nitrate-nitrogen in the root zone, subsurface samples should be collected to a depth of 3 feet. A 2-foot sample is the minimum sampling depth recommended for nitrate-nitrogen

    G1740, Select Proper Sampling Depth

Cores

  • Acceptable measurement of the average nutrient status in a 40-acre area can be obtained with 10 to 15 randomly collected surface cores and six to eight subsoil cores for nitrate-nitrogen analysis.

    G1740, Collect Soil Cores

  • Within each of the three management zones in Figure 2b, 10-15 cores should be collected and composited into a sample representing each zone.

    G1740, Figure 2 caption

Sources

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

アメリカ合衆国：連邦規則およびその他のすべての州

各国の土壌サンプリング規制

古い要件を報告する： info@geopard.tech

適用されるルールのポイントを計画する

サンプルごとの面積、コア数、およびルールで指定する深さを設定します。GeoPardは、グリッドまたはゾーンごとにポイントを配置し、歩行ルートを決定し、ラベルを印刷し、作成したプランをスマートフォンに転送して現場に提供します。.

サンプリング計画を作成する 土壌サンプリングプランナーを参照してください

これは公式資料に基づいた計画策定の参考資料であり、法的助言ではありません。規則は管轄区域、栄養素、土地利用、プログラムによって異なります。現地調査を行う前に、最新の公式文書と研究室の指示書を確認してください。.

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