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Nitrogen deficiency in Norway spruce planted 1967, 6 years. Razès.

Nitrogen cycling in Pinus taeda (Loblolly pine).

Nitrogen chlorosis showing as a "dished bed" in seedbeds. White spruce, 2+0, nutrient deficiency-nitrogen.

Nitrogen chlorosis in production beds. White spruce, 2+1, nutrient deficiency.

Change in nitrogen mg (weight) in white spruce seedlings after drying

Shore view at Nitmat Lake

Shore at Nitmat Lake, BC

Nisula rolls in Sussex nursery of J.D. Irving. White spruce, 1+1, container, nisula.

Nisula roll white spruce, put in roll in April, photo in June. White spruce, 2+0, container, nisula.

Nisula roll stock grown experimentally. White spruce, 1+1, container stock.