What Is Being Taught in Introductory Soil Science Laboratories?1

Abstract

SynopsisThe following sequence of 10 most important topics, with the number of schools teaching each topic, was stressed: texture—65, moisture—60, soil reaction (pH) and limestone—58, rocks and minerals—56, structure‐55, profile study‐54, classification and survey—54, soil testing—51, microorganisms and organic matter—50, and fertilizers—47. Almost two‐thirds of the instructors provided at least as many hours in the laboratory as in the lecture. General chemistry was the most common prerequisite for the introductory soil science courses.