Trial using hopwaste. Sitka spruce, 1+1, fertilization.

Lime-induced chlorosis. Red pine, 2+1, nutrient deficiency.

Nitrogen fertilization trial A-60-N1, control on left, 100k/ha on right. White spruce, 2+0, fertilization trials.

Phosphorus purpling in shoots of seedlings. White spruce, 2+0, nutrient deficiency, phosphorus.

Forestry mulch trials using grits of different sizes and colours. Mulch trials.

Forestry commission fertility trials. Sitka spruce, 1+0, fertility trial.

Seedbeds showing chlorosis from potassium deficiency. White spruce, 3+0, nutrient deficiency, potassium.

Potassium deficiency, healthy and two degrees of chlorosis. White spruce, 3+0, nutrient deficiency, potassium.

Irrigation gun. Red pine, 2+1, irrigation.

A general view showing chlorosis on edge and high fertility in centre. Red pine, 2+0, seedbeds.