Scientists classify soil based on factors such as mineral content, texture, drainage capacity, and fertility. Globally, the 7 most common types of soil form the basis of farming and ecosystem balance: ...
Philosophies of soil classifications : from is to does / S.W. Buol -- How good is our soil classification? / R. Dudal -- Soil classification : past and present / Robert J. Ahrens, Thomas J. Rice, Jr., ...
Rev. ed. of: Soil genesis and classification / S.W. Buol, F.D. Hole, R.J. McCracken. 3rd ed. 1989. siris_sil_934363 ...