This publication is intended for those with some knowledge of plants who want to grow one or more species for experimental purposes, for demonstrations in schools, or for science projects where limited facilities are available.

Sunlight, air, water, and minerals help keep plants alive. But do you know how much water is needed for a seed to sprout? Or what a plant will do to find the light it needs? Let's experiment to find out! Simple step-by-step instructions help readers explore key science concepts. Projects include materials easily found around the house and will inspire learning and creativity!

With the continued implementation of new equipment and new concepts and methods, such as hydroponics and soilless practices, crop growth has improved and become more efficient. Focusing on the basic principles and practical growth requirements, the Complete Guide for Growing Plants Hydroponically offers valuable information for the commercial growe

February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.