This competency-based curriculum unit on soils and fertilizers is one of four developed for classroom use in teaching the turf and lawn services area of horticulture. The four sections are each divided into teaching content (in a question-and-answer format) and student skills that outline taking soil samples, testing samples, preparing soil for turf seedbed, and turf fertility. A list of references precedes a section containing visual aids, student skill checklist, and student activities such as handouts, discussion activities, field trips, crossword puzzles, hands-on experiences, worksheets, tests, and quizzes. Answer keys are provided. (YLB)