Augsnes paraugu ņemšanas prasības Kalifornijā
Valsts noteikumi: Centrālās ielejas reģionālās ūdens kvalitātes kontroles padomes rīkojums R5-2013-0122, atkārtoti izdots vispārējais rīkojums par atkritumu novadīšanas prasībām esošajām piena lopkopības saimniecībām. Valsts vadlīnijas: Kalifornijas Universitātes Kooperatīvās paplašināšanas dienests, augsnes paraugu ņemšanas vadlīnijas.
| Country / region | Purpose / programme | Time / frequency | Area per sample | Method | Depth | Cores | Status and source |
|---|---|---|---|---|---|---|---|
| United States | |||||||
| CaliforniaUnited StatesCalifornia, Central Valley Region only: existing milk cow dairies under Order R5-2013-0122. Other regions and states set their own rules. | Soil phosphorus monitoring on dairy land application areasCentral Valley Water Board, Dairy General Order (waste discharge requirements for existing milk cow dairies) |
| Not specified | Not specified | Not specified | Not specified | ConditionalCentral Valley Water Board Order R5-2013-0122 with Monitoring and Reporting Program (PDF) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Who it applies to
Laboratory and analysis
SourcesSources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
| CaliforniaUnited StatesCalifornia only. Other states set their own rules. | General fertility and nitrate samplingUniversity of California Cooperative Extension, guidelines for soil sampling |
| Not specified | W-shaped pattern, a zigzag across the whole block, or a diagonal line. Divide non-uniform fields into blocks by cropping history and varieties, observed differences in crop development, and soil series. | General fertility: 6 inches or tilling depth. Nitrate-N: 6 inches to 3 feet, by rooting depth and leaching risk. | At least 20 cores per block | Official guidanceUCCE, Guidelines for Soil Sampling (PDF, UC ANR) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Method
Depth
Cores
SourcesSources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
Amerikas Savienotās Valstis: federālie noteikumi un visi pārējie štati
Augsnes paraugu ņemšanas noteikumi katrā valstī
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