"clay ground" is not a correct phrase in written English.
However, you might be referring to a clay soil or a clay court, in which case those are both valid phrases. For example, "The farmer struggled to grow plants in the clay soil of his garden" or "The tennis match was held on a hard clay court."
The clay ground had broken away in ruts from a long-ago storm.
Still, at the moment, the island has only one turbine, and it is mounted on a patch of red clay ground in Charleston, steps from the end of Mr. Masucci's waterfront esplanade.
But it exists, a patch of land roughly defined by Wakefield, Morley and Rothwell in West Yorkshire, where heavy clay ground and chill winds blowing down from the Pennines provide ideal growing conditions for this vegetable that thinks it is a fruit.
A primer layer was detected on the clay ground layer in samples T3 and T5.
The painting has a brownish gray so-called 'quartz' or clay ground rich in ground sand and clay minerals [23].
Metalloporphyrin was intercalated into layers of montmorillonite and biotite phases of natural clay ground to micro- and to nano-scales.
Parametric study of site response analysis focusing on the effects of soil disturbance degree and depth on generic clay grounds with varying sloping angles subjected to harmonic and earthquake loadings are performed.
The road to one front of the war against the Islamic State winds through miles of barren, cracked-clay ground.
Next, Portland General Store's Face Bomb, a mud rich in rhassoul clay and ground walnut shells, is massaged into the face for 10 minutes for deep exfoliation.
This conceptual diagram was converted to spatial explicit descriptors of landscape patterns, such as hedge density, field size, clay content, ground water hydrology and spatial explicit descriptors of management such as hedgerow change, field aggregation, field grazing days and fertilizer application.
For athletes who gather at the Queensboro Oval on the Upper East Side, the plot of clay-covered ground has long brought out a competitive edge.
