Mechanical lifting, yellow chlorosis in shoots indicative of potassium deficiency. White spruce, 2+2, lifting.

General view of seedbeds healthy look of stock. White spruce, 2+0, seedlings in bed.

One of the first frit mulching trials in Ontario. Mulching.

Bitter blue lupin sown as a plow down green manure. Green cropping.

Bitter blue lupin, close-up of #44. Green crop.

Effect of heavy addition of sawdust on seedlings n.b. they are small but not chlorotic i.e. their growth rates have been slow from germination. Jack pine, 1+0, sawdust added to soil.

No sawdust added, n.b. large seedlings and green colour.cf#45. Jack pine, 1+0, sawdust not added to soil.

Acid injection system in pump house. Acidification.

Shredding peat prior to application on the fields. Peat preparation.

Disking in the shredded peat. Peat application.