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Zahteve za vzorčenje tal v Severni Karolini

Zahteve za vzorčenje tal v Severni Karolini

Državne smernice: NC State Extension SoilFacts.

Vzorčenje tal v Severni Karolini: pogostost, površina, globina in vzorci

Kako pogosto je treba vzorčiti zemljo v Severni Karolini?

  • NC State Extension SoilFacts Official guidance Coastal plain: every 2 to 3 years. Piedmont and mountains: once every 4 years is usually enough.

Kdaj v letu je treba vzorčiti zemljo v Severni Karolini?

  • NC State Extension SoilFacts Official guidance 3 to 6 months before planting, at the same time every year if possible. Perennial or sod crops: 3 to 4 months before establishing the crop or applying lime or fertilizer.

Koliko hektarjev lahko pokrije en vzorec tal v Severni Karolini?

Kako globoko je treba odvzeti vzorce tal v Severni Karolini?

  • NC State Extension SoilFacts Official guidance Field crops: plow depth, usually about 8 inches (20.32 cm). Perennial crops being maintained (fescue, alfalfa, turf): 4 inches (10.16 cm).

Koliko jeder gre v en vzorec tal v Severni Karolini?

Koliko vzorcev tal potrebuje 100-akrsko polje v Severni Karolini?

NC State Extension SoilFacts: Za enotno 40-akrsko polje je potrebnih vsaj 5 sestavljenih vzorcev, vsak s površino največ 7 hektarjev, in vsaj 75 jeder skupaj, 15 na vzorec.

Vzorci in jedra za polja vseh velikosti

Soil sampling rules in North Carolina, with the exact wording of each source
Country / region Purpose / programme Time / frequency Area per sample Method Depth Cores Status and source
United States
North CarolinaUnited StatesNorth Carolina only. Other states set their own rules.Routine soil fertility samplingNC State Extension SoilFacts
  • Repeat Coastal plain: every 2 to 3 years. Piedmont and mountains: once every 4 years is usually enough.
  • Season 3 to 6 months before planting, at the same time every year if possible. Perennial or sod crops: 3 to 4 months before establishing the crop or applying lime or fertilizer.
No more than about 20 acres (8.09 ha) per sample, even where the soil looks uniformCores at random locations through one field or area of one soil type or condition. A separate sample for each area that differs in slope, color, drainage or texture and can be fertilized separately.Field crops: plow depth, usually about 8 inches (20.32 cm). Perennial crops being maintained (fescue, alfalfa, turf): 4 inches (10.16 cm).About 15 to 20 cores per sampleOfficial guidanceNC State Extension, AG-439-30, Careful Soil Sampling
Who it applies to, the exact wording and every source
Who it applies to
Advice for North Carolina farms from NC State Extension, written with the state soil testing laboratory. Not law.
In force from
Under review
Legal text
NC State Extension, Careful Soil Sampling: The Key to Reliable Soil Test Information (AG-439-30, 2022)

The wording in the source

Timing

Area per sample

Method

  • Every soil sample you submit for testing should consist of about 15 to 20 cores taken at random locations throughout one field or area.

    AG-439-30, Where to Take Samples

  • If the field you are sampling contains areas that are obviously different in slope, color, drainage, and texture and if those areas can be fertilized separately, submit a separate sample (consisting of 15 to 20 cores) for each area (Figure 1).

    AG-439-30, Where to Take Samples

Depth

Cores

  • Every soil sample you submit for testing should consist of about 15 to 20 cores taken at random locations throughout one field or area.

    AG-439-30, Where to Take Samples

Sources

Sources 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

Prijavi zastarelo zahtevo: info@geopard.tech

Načrtujte točke glede na pravilo, ki velja

Nastavite površino na vzorec, jedra in globino, ki jo zahteva vaše pravilo. GeoPard postavi točke na mrežo ali po conah, določi pot sprehoda, natisne oznake in načrt odnese na teren s telefonom.

Ustvarite načrt vzorčenja Oglejte si načrtovalec vzorčenja tal

Referenčni priročnik za načrtovanje, zgrajen na podlagi uradnih virov, ne pravnega nasveta. Veljajo pravila glede na jurisdikcijo, hranila, rabo zemljišč in program: pred terenskim delom preverite trenutno uradno besedilo in navodila svojega laboratorija.

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