Soil pH in Harlan, NE: Lime or Sulfur?

Typical topsoil pH in Harlan, NE

Typical topsoil in Harlan, NE is pH 6.87, already right for vegetable garden (6-7). Test before adding anything.

What Harlan needs, by plant

• Already in range: lawn (cool-season grass), vegetable garden, roses.
• Just outside, test first: tomatoes (off by 0.1).
• Sulfur: potatoes 3.2 lb/100 sq ft over 2 applications; strawberries 2.1 lb/100 sq ft over 2 applications; blueberries 4.4 lb/100 sq ft over 3 applications; azaleas and rhododendrons 3.7 lb/100 sq ft over 2 applications; blue hydrangeas 3.7 lb/100 sq ft over 2 applications; pink hydrangeas 1.4 lb/100 sq ft.

What to do next

If your test lands near 6.87, you can skip lime and sulfur for lawn (cool-season grass), vegetable garden, tomatoes, roses.

How mixed the soil is

Of the 353,354 surveyed acres in Harlan, NE, 61% are near neutral (6.5-7.3), 21% are alkaline (above 7.3), 19% are moderately acidic (5.5-6.5). Mapped soils run from pH 5.5 to 8, a spread of 2.5 units across 176 soil components. 61% of the land falls in one class, so the county figure is a fair first guess for most yards here.

Clay, organic matter and rates

Topsoil here averages 22.4% clay and 2.13% organic matter, which this site treats as loam. Moving it one pH unit takes about 7 lb of lime or 2.3 lb of sulfur per 100 sq ft. 21% of mapped components carry free carbonate (lime already in the ground).

Harlan against the rest of Nebraska

pH 6.87 is 0.12 above the Nebraska median of 6.75. 58 of 93 Nebraska counties have more acidic topsoil. Nationally it is more alkaline than the US county median of 6.05.

Closest in pH within the state: Greeley (6.84), Garden (6.85), Dodge (6.86), Nance (6.86), Wayne (6.87), Furnas (6.88), Lincoln (6.88), Sherman (6.89).

The range in Nebraska runs from Fillmore at 5.88 to Scotts Bluff at 7.58; Harlan sits 58% of the way up.