Zahteve za vzorčenje tal v Louisiani
Državne smernice: Nasveti za vzorčenje, testiranje in interpretacijo testov s strani LSU AgCenter.
LSU AgCenter soil sampling, testing and test interpretation advice: Za enotno 40-akrsko polje je potrebnih vsaj 10 sestavljenih vzorcev, vsak s površino največ 4 hektarjev, in vsaj 120 jeder skupaj, 12 na vzorec.
| Country / region | Purpose / programme | Time / frequency | Area per sample | Method | Depth | Cores | Status and source |
|---|---|---|---|---|---|---|---|
| United States | |||||||
| LouisianaUnited StatesLouisiana only. Other states set their own rules. | Routine soil fertility samplingLSU AgCenter soil sampling, testing and test interpretation advice |
| Zone sampling: one composite per 10 acres. Grid sampling: one composite per 2.5 acres; start new fields at 1 acre. | Zone or grid sampling, subsamples in a zigzag pattern within each zone or grid cell. In furrow-irrigated fields, sample the bed top 4 to 6 inches from the row. | 0 to 6 inches | 12 to 15 subsamples per composite: one to two per acre for zones, five to six per acre for grids. More where fertilizer was banded or manure spread. | Official guidanceLSU AgCenter P3934, Soil Sampling, Testing and Test Interpretation (PDF) |
Who it applies to, the exact wording and every source
The wording in the sourceTiming
Area per sample
Method
Depth
Cores
Laboratory and analysis
Field identifiers
SourcesSources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team. | |||||||
Združene države: zvezna pravila in pravila vseh drugih držav
Predpisi o vzorčenju tal v vsaki državi
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