Pre-inoculation of clover seed for aerial seeding on logged sites.

In 1989 a mixture of clover (Trifolium hybridum L. and T. repens L.) seed pre-inoculated with Rhizobia by 2 commercial techniques (Guardcoat and Dormal) were compared to bare seed. The Guardcoat produced nodulation on 30% of the clover plants. Dormal and bare seed produced no nodules. Fifty-nine percent of the N in clover top growth in 1990 was derived from atmospheric nitrogen. Use of a pre-inoculated treatment, such as Guardcoat, is an effective method of delivering Rhizobia to aerially seeded clover.