メイン州における土壌サンプリングの要件
州の規則:メイン州改正法典第7編第747章(栄養管理法)。州の指針:メイン大学の土壌サンプリング手順および普及指導機関の助言。.
University of Maine soil sampling instructions and Cooperative Extension advice: 均一な100エーカーの圃場を調査するには、それぞれ8エーカー以下の複合サンプルを少なくとも13個、合計で少なくとも195個のコアサンプル(1サンプルあたり15個)が必要となる。.
| Country / region | Purpose / programme | Time / frequency | Area per sample | Method | Depth | Cores | Status and source |
|---|---|---|---|---|---|---|---|
| United States | |||||||
| MaineUnited StatesMaine only. Other states set their own rules. | Soil tests in a nutrient management planMaine Nutrient Management Act, nutrient management plans (NMP) |
| Not specified | Not specified | Not specified | Not specified | Conditional7 M.R.S. section 4204, Nutrient management plan (Maine Legislature) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Who it applies to
Sources
Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
| MaineUnited StatesMaine only. Other states set their own rules. | Routine soil fertility samplingUniversity of Maine soil sampling instructions and Cooperative Extension advice |
| Up to 8 acres per sample where past treatment and soil type are uniform. Separate samples for low spots, trouble spots, different soils and differently treated areas. | Uniform sampling areas; keep a permanent field sampling map. | Row crops or new seedings: plow depth, about 8 inches. Sod (hayfields, lawns): 3 to 4 inches. Tree crops: 12 inches. | About 15 spots per sample area | Official guidanceMaine Soil Testing Service, Field and Soil Sample Information form, sampling instructions (PDF) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Area per sample
Method
Depth
Cores
Field identifiers
Sources
Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
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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。.
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。.