Details of mechanical thinner designed at nursery. Thinning seedbeds.

Seedling harvester developed at nursery, note manner of movement of seedlings to remove soil. Lifting, seedling harvester.

Details of mechanical harvester developed at nursery. Lifting, with harvester.

Cultivating a la Niels Kreiberg in transplant stock. Black spruce, 2+1, cultivating.

Details of harrows on Danish cultivator. Cultivation.

Rooted black spruce cutting taken from outstanding plantation tree. Black spruce, 1+0, cutting.

Comparison of seedlings used for transplant stock: on left (yellow) seedlings from overwintered beds; on right those from stock lifted in fall and frozen stored until transplanting.

Chemically thinned with "gramoxone." Black spruce, 3+0, thinning.

A general view of transplant lines after enlargement of field. Black spruce, 2+2, transplants.

A general view of plastic greenhouses to grow paper pots; each house can grow 2 million seedlings. Greenhouse.