The first of three volumes included in a secondary agricultural supplies and services curriculum guide, this volume contains units of instruction in two major areas: (1) plant and soil science and (2) leadership (Future Farmers of America). Typical of the nineteen units included in the first section are the following: Plant Insect Control, Plant Deseases, Land Preparation, Agriculture Stabilization and Conservation Service, Land Judging, Marketing Crops, Establishing and Improving Tame Pastures, Agricultural Chemicals, Soil Conservation Practices, and Seed Selection. The eight units included in the leadership section include Orientation to Vocational Agriculture, Introduction to the Future Farmers of America (FFA), Duties and Responsibilities of FFA Members, Developing the FFA Program of Activities, Parliamentary Procedure and Public Speaking, Importance of Public Speaking, Developing and Delivering a Speech, and Becoming a Good Leader. Each unit follows a typical format which includes terminal objectives, specific objectives, suggested activities, instructional materials, references, information sheets, transparency masters, assignment sheets, tests, and tests answers. (LRA)