CROP & SITUATION
Upstate SC piedmont soils are typically heavy red clay or clay loam. Select "Heavy Clay" if uncertain.
AREA & SCALE
Enter the total area you intend to amend. For a single tree, 50–200 sq ft is typical.
SOIL TEST RESULTS — Enter values from your Clemson Extension or lab report
Clemson reports pH directly. Upstate SC averages 4.8–6.0.
Very low in disturbed Upstate SC soils. Below 2% is common.
Clemson reports N as Very Low / Low / Medium / High / Very High.
Clemson reports P in lbs/acre. Optimal: 50–100 for most crops.
Optimal: 150–250 for most crops in clay soil.
Optimal: 1000–2000 lbs/acre. Low calcium common in acidic SC soils.
ADVANCED INPUTS — Optional but improves recommendation precision
Clay soils: 15–40. Sandy: 2–10. Affects lime rates significantly.
Optimal: 150–300 lbs/acre. Dolomitic lime adds Mg.
Usually adequate unless pH is very high or soil is very sandy.
Deficiency common in high-pH or heavily tilled soils. Optimal: 2–5.
Deficiency causes hollow heart in brassicas and fruit set problems. Optimal: 0.5–1.0.
Ideal ratio is 4:1 to 7:1 Ca:Mg. Imbalance causes nutrient competition.
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Soil Health Report
SOIL HEALTH OVERVIEW
PRIORITY ACTIONS
RECOMMENDED AMENDMENTS — Prioritized by Urgency
| Amendment | Addresses | Rate per 1,000 sq ft | Your Area Total | Timing | Notes |
|---|
BIOLOGICAL & REGENERATIVE LAYER
Chemistry solves what biology should maintain. These recommendations address the living system beneath the nutrients.
COVER CROP SUGGESTIONS
A NOTE ON TIMING & SOIL TESTING
"Soil test every two to three years, or whenever yields decline or symptoms appear. Lime reactions in clay soil can take 6–12 months to fully express. Apply lime in fall where possible and let the season do the chemistry."
CLEMSON COOPERATIVE EXTENSION · clemson.edu/extension/soil-testing · (864) 656-3030