For farmers and Orcadians

Acreage under oats: 1901 33,400; 1998 400
Acreage under barley: 1901 4,600, 1998 10,400
Acreage under turnips: 1901 14,600, 1998 500
Acreage under potatoes: 1901 2,800, 1998 200
Acreage under grass for hay & silage: 1901 9,300, 1998 40,700
Acreage under grass for grazing: 1901 42,200, 1998 75,900
Total area included here: 1901 106,900 acres, 1998 128,100

Total area: 244,480 acres
Proportion under cultivation: 1901 44%, 1998 52% (other crops assumed to be minimal)
Remainder presumed to be built-up, roads, marsh, hillside, bare rock, foreshore, inland water, and other uncultivatable land

Head of cattle: 1901 28,100, 1998 97,600
Head of sheep: 1901 35,800, 1998 160,700
Horses: 1901 6,600, 1998 400
Poultry: 1901 unknown, 1950 808,200, 1998 7,400

ETA: I know it's an odd thing to post, but it follows up a conversation I was having with someone, and I said I'd get the data for them.