Boroll

Boroll

[′bȯ‚rȯl]
(geology)
A suborder of the soil order Mollisol, characterized by a mean annual soil temperature of less than 8°C and by never being dry for 60 consecutive days during the 90-day period following the summer solstice.
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References in periodicals archive ?
The soil type was a Dark Brown Chernozem (Typic boroll) Sutherland clay, clay-loam at the Kernen Crop Research Farm.
The soil type was a Dark Brown Chernozem clay loam at the SF and a Dark Brown Chernozem (Typic boroll) clay, clay loam at KER.
The soil type was a Dark Brown Chernozem (Typic boroll) Sutberland clay, clay-loam at the KCRF.
The soil type was a Dark Brown Chernozem (Typic boroll) clay, clay loam at the Kernen Crop Research Farm (KCRF), and a Dark Brown Chernozem clay loam at the Seed Farm (SF).
The soil at Winnipeg was clay (Riverdale series, Entisol, Cumulic Regosol) with gradual release of water and slow development of stress, while the soil at Carman was sandy clay loam (Denham and Eigenhof series, Udic Boroll, Orthic Black Chernozem) with characteristic quick release of water and rapid development of stress.
The soil at Outlook and Goodale was a Dark Brown Chernozem (Udic haploboroll) sandy loam, at Kernen the soil was a Dark Brown Chernozem (Udic haploboroll) clay loam, at Wakaw the soil was a Black Chernozem (Typic boroll) silt loam, and at Elrose the soil was a Dark Brown Chernozem (Hudic haploboroll) heavy clay.
The field research was conducted on four Orthic Black Chernozemic soils (Udic Borolls) in east-central Saskatchewan, which are part of the moist-Black soil zone.