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<br />CONSISTENCE <br />• <br />Wet soil' <br />nonsticky. . <br />slightly sticky. <br />sticky <br />very sticky. . <br />nonelastic . <br />slightly plastic <br />plastic. . <br />very plastic . <br />REACTION <br />Moist soil' <br />. so loose. <br />. ss very friable . <br />s friable. . <br />. vs firm <br />. po very firm. . <br />. ps extremely firm . <br />p <br />. vp <br />(Use pH figures) <br />Effervescence with HC1: <br />none. ea <br />slight. e <br />strong. es <br />violent ev <br /> Dry soil: <br />1 loose. 1 <br />.vfr soft s <br />. fr slightly hard. sh <br />fi hard h <br />.vfi very hard. vh <br />.efi extremely hard eh <br /> Cementation' <br /> weakly cemented. cw <br /> strongly cemented. cs <br /> indurated. ci <br />BOUNDARY <br />Distinctness: <br />abrupt (<1" thick).. a <br />clear (1"-2 1/2")... c <br />gradual (2 1/2"-5"). B <br />diffuse (>5" thick). d <br />Topography: <br />smooth (nearly a <br />plane) s <br />wavy (pockets, width <br />> depth) w <br />irregular (pockets, <br />depth > width) i <br />broken (discontinu- <br />ous) b <br />ROOTS <br />Abundance of Roots <br />(by number and size) <br />Very fine Fine Medium Coarse <br />Code Class (<1 mm) (1-2 mm) (2-5 mm) (>5 mm) <br /> Average number per square decimeter <br />1 Few <10 <10 <1 <7 <br />2 Common 10 to 100 10 to 100 1 to 10 1 to 5 <br />3 Many >100 >100 >10 >5 <br />Size' <br />very fine (<1 mm in diameter). of <br />fine (7-2 mm in diameter). f <br />medium (2-5 mm in diameter). m <br />coarse (>5 mm in diameter) co <br />• <br />