VARIOUS FIBER CONTAINERS are being successfully used for growing ornamental plants in nurseries, and some of these materials are now being used in vegetable crop production. Opportunities exist to increase their use in vegetable crop transplanting, particularly for special soil problems or under unique climatic conditions. However, several new problems arise in using fiber containers for vegetables that are not usually found with existing methods of bare-root transplanting. The problems begin with the initial stage of plant growth in the greenhouse and continue through maturity.

Materials and assistance in these investigations were obtained from Flintkote Company, Los Angeles; Jiffy Pot Company of America, Division of George J. Ball Company, Chicago, Illinois; Pullen Molded Products, Inc., New Iberia, Louisiana; and Willis-Reynolds Corporation, Lehanon, Indiana.