Source : Webster's Revised Unabridged Dictionary (1913)

Loamy \Loam"y\, a.
   Consisting of loam; partaking of the nature of loam;
   resembling loam. --Bacon.

Source : WordNet®

loamy
     adj : consisting of or having the character of loam; "richy loamy
           soil" [ant: {loamless}]