Soil pH in Eddy, ND: Lime or Sulfur?

Typical topsoil pH in Eddy, ND

Typical topsoil in Eddy, ND is pH 7.32 and calcareous, so sulfur won't lower it for long. For vegetable garden, choose alkaline-tolerant varieties and add compost rather than fighting the soil.

What Eddy needs, by plant

• Beds or pots instead: lawn (cool-season grass), vegetable garden, tomatoes, potatoes, strawberries, roses, blueberries, azaleas and rhododendrons, blue hydrangeas, pink hydrangeas.

What to do next

If your test confirms pH near 7.32, consider raised beds for anything acid-loving; with 42% of soils here carrying free lime, sulfur will not hold.

How mixed the soil is

Of the 405,395 surveyed acres in Eddy, ND, 63% are near neutral (6.5-7.3), 37% are alkaline (above 7.3). Mapped soils run from pH 6.1 to 8.2, a spread of 2.1 units across 1,253 soil components. 63% 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 16% clay and 3.97% 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. 42% of mapped components carry free carbonate (lime already in the ground), enough that sulfur gets neutralised before it does much.

Eddy against the rest of North Dakota

pH 7.32 is 0.12 above the North Dakota median of 7.2. 47 of 53 North Dakota counties have more acidic topsoil. Nationally it is more alkaline than the US county median of 6.05.

Closest in pH within the state: Richland (7.28), Mountrail (7.29), Cass (7.3), Foster (7.31), Walsh (7.38), Traill (7.39), Golden Valley (7.41), Grand Forks (7.48).

The range in North Dakota runs from Grant at 6.85 to Pembina at 7.5; Eddy sits 72% of the way up.