Assumption: Farm Operating on a Three-Field System with 2/3 in Crops and 1/3 Fallow (Uncultivated, Land at Rest) each Year Grass Grain Fallow Manure Grain Total Stock TOTAL Area in Area in Area (at Tons Yield: Grain Output Acres Acres Rest): per Acre Bu. per Output in Equiv IN Acres Arable Acre Bu. Bu.* BU. 100 0.0 0.0 1,000 1,000 80 13.3 6.7 >10.0 27.5 366 800 1,166 77 15.3 7.7 10.0 27.5 421 770 1,191 60 26.7 13.3 4.5 16.5 441 600 1,041 40 40.0 20.0 2.0 11.5 460 400 860 20 53.3 26.7 0.7 8.9 474 200 674 0 66.7 33.3 0.0 7.5 500 0 500 * Assumption: That the output of livestock products is equivalent to 10 bushels of grain per acre. Source: Robert in the Pre-Fertiliser in Bruce M. S. Campbell and Mark Overton, eds., Land, Shiel, ‘Improving Soil Fertility Era’, (Manchester and New York, 1991), p. 71. Labour, and Livestock: Historical Studies in European Agricultural Productivity Table 2: THE BALTIC AND ENGLISH GRAIN EXPORT TRADES AVERAGE ANNUAL EXPORTS IN QUARTERS (OF 8 BUSHELS)*
Assumption: Farm Operating on a Three-Field System with 2/3 in Crops and 1/3 Fallow (Uncultivated, Land at Rest) each Year Grass Area in Acres Grain Area in Acres Fallow Area (at Rest): Acres Manure Tons per Acre Arable Grain Yield: Bu. per Acre Total Grain Output Bu. Stock Output in Equiv Bu.* TOTAL IN BU. 100 0.0 0.0 1,000 1,000 80 13.3 6.7 >10.0 27.5 366 800 1,166 77 15.3 7.7 10.0 27.5 421 770 1,191 60 26.7 13.3 4.5 16.5 441 600 1,041 40 40.0 20.0 2.0 11.5 460 400 860 20 53.3 26.7 0.7 8.9 474 200 674 0 66.7 33.3 0.0 7.5 500 0 500 * Assumption: That the output of livestock products is equivalent to 10 bushels of grain per acre. Source: Robert Shiel, ‘Improving Soil Fertility in the Pre-Fertiliser Era’, in Bruce M. S. Campbell and Mark Overton, eds., Land, Labour, and Livestock: Historical Studies in European Agricultural Productivity (Manchester and New York, 1991), p. 71. Table 2: THE BALTIC AND ENGLISH GRAIN EXPORT TRADES AVERAGE ANNUAL EXPORTS IN QUARTERS (OF 8 BUSHELS)*
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