Yashi kuma ana kiranta da ƙasa wata aba ce ta tsababe dake dauke da kananun duwatsu da ƴa'ƴan ma'adinai da suke a rarrabe. Ana bata ma'ana ne da irin girman da take dashi, yafi gravel silbi amma bai kai silti ba. Ƙasa kuma na iya daukan ma'anar yanayin ƙasa; misali, ƙasar dake dauke da fiye da kashi 85 na kananun ababen dake da girman yashi ta shi. Glossary of terms in soil science (PDF). Ottawa: Agriculture Canada. 1976. p. 35. ISBN 978-0662015338.