TABLE V.—continued
| Produce per Acre—Average per Annum. | |||
| Manures per Acre per Annum. | Total straw. | ||
| 20 years, | 20 years, | 40 years, | |
| 1852-71. | 1872-91. | 1852-91. | |
| cwt. | cwt. | cwt. | |
| Farmyard manure, 14 tons per annum since 1843 | 33-7/8 | 31-3/8 | 32-5/8 |
| Unmanured continuously | 13 | 8-5/8 | 10-5/8 |
| Mixed mineral manures and 3-1/2 cwt. superphosphate | 15 | 9-3/4 | 12-3/8 |
| Mixed mineral manures, 3-1/2 cwt. superphosphate, 200 lb. ammonium salts | 24-1/2 | 19-1/8 | 21-7/8 |
| Mixed mineral manures and 3-1/2 cwt. superphosphate, 600 lb. ammonium salts | 41-3/8 | 39-5/8 | 40-1/2 |
| Mixed mineral manures, 3-1/2 cwt. superphosphate, 275 lb. nitrate of soda | 41-1/2 | 37-3/4 | 39-5/8 |
| 275 lb. nitrate of soda | 28-1/4 | 18-1/2 | 23-3/8 |
| 400 lb. ammonium salts every year since 1845 | 24-3/4 | 16-1/4 | 20-1/2 |
| 400 lb. ammonium salts, 3-1/2 cwt. superphosphate | 26-3/8 | 21 | 23-3/4 |
| Mineral manure, 3-1/2 cwt. superphosphate, 400 lb. ammonium salts in autumn | 31-1/4 | 28-3/8 | 29-3/4 |
TABLE VI.—Experiments on the Growth of Barley for Forty Years, 1852-91.
| Produce per Acre—Average per Annum. | |||
| Dressed grain. | |||
| Manures per Acre per Annum. | Quantity. | ||
| 20 years, | 20 years, | 40 years, | |
| 1852-71. | 1872-91. | 1852-91. | |
| bush. | bush. | bush. | |
| Unmanured continuously | 20 | 25-1/2 | 16-1/2 |
| 3-1/2 cwt. superphosphate of lime | 25-1/2 | 17-3/4 | 21-3/4 |
| Mixed mineral manures | 22-1/2 | 13-1/2 | 18 |
| Mixed mineral manures, 3-1/2 cwt. superphosphate | 27-1/2 | 17-1/4 | 22-3/8 |
| 200 lb. ammonium salts | 32-1/2 | 25-5/8 | 29 |
| 200 lb. ammonium salts, 3-1/2 cwt. superphosphate | 47 | 38-1/2 | 42-3/4 |
| 200lb. ammonium salts, mixed mineral manures | 35 | 27-3/4 | 31-3/8 |
| Manures, 3-1/2 cwt. superphosphate of lime | 46-1/4 | 40-3/4 | 43-1/2 |
| 275 lb. nitrate of soda | 37 | 28-3/8 | 32-3/4 |
| 275 lb. nitrate of soda, 3-1/2 cwt. superphosphate | 49-1/4 | 42-1/4 | 45-3/4 |
| 275 lb. nitrate of soda, mixed mineral manures | 37-3/8 | 29-1/2 | 33-1/2 |
| 275 lb. nitrate of soda, mixed mineral manures, 3-1/2 cwt. superphosphate | 49-3/4 | 41-1/4 | 45-1/2 |
| 1000 lb. rape-cake | 45-1/4 | 37-1/8 | 41-1/4 |
| 1000 lb. rape-cake, 3-1/2 cwt. superphosphate | 46-3/4 | 40 | 43-3/8 |
| 1000 lb. rape-cake, mixed mineral manures | 43-5/8 | 35-5/8 | 39-1/2 |
| 1000 lb. rape-cake, mixed mineral manures, and 3-1/2 cwt. superphosphate | 47-3/8 | 39 | 43-1/4 |
| Farmyard manure, 14 tons every year | 48-1/4 | 49 | 48-5/8 |
TABLE VI.—continued
| Produce per Acre—Average per Annum. | |||
| Dressed grain. | |||
| Manures per Acre per Annum. | Weight per bushel. | ||
| 20 years, | 20 years, | 40 years, | |
| 1852-71. | 1872-91. | 1852-91. | |
| lb. | lb. | lb. | |
| Unmanured continuously | 52-3/8 | 51-3/4 | 52 |
| 3-1/2 cwt. superphosphate of lime | 53-1/4 | 53 | 53-1/8 |
| Mixed mineral manures | 53 | 51-7/8 | 52-1/2 |
| Mixed mineral manures, 3-1/ cwt. superphosphate | 53-3/8 | 52-3/8 | 53 |
| 200 lb. ammonium salts | 52-1/8 | 52 | 52 |
| 200 lb. ammonium salts, 3-1/2 cwt. superphosphate | 53-3/8 | 52-1/4 | 52-7/8 |
| 200 lb. ammonium salts, mixed mineral manures | 52-3/4 | 52-1/2 | 52-5/8 |
| Manures, 3-1/2 cwt. superphosphate of lime | 54 | 54-1/8 | 54 |
| 275 lb. nitrate of soda | 52 | 52-1/8 | 52 |
| 275 lb. nitrate of soda, 3-1/2 cwt. superphosphate | 53-3/8 | 53-1/4 | 53-1/4 |
| 275 lb. nitrate of soda, mixed mineral manures | 52-1/4 | 52-3/4 | 52-1/2 |
| 275 lb. nitrate of soda, mixed mineral manures, 3-1/2 cwt. superphosphate | 53-3/8 | 54 | 53-5/8 |
| 1000 lb. rape-cake | 53-3/4 | 53-7/8 | 53-7/8 |
| 1000 lb. rape-cake, 3-1/2 cwt. superphosphate | 53-7/8 | 54-3/8 | 54-1/8 |
| 1000 lb. rape-cake, mixed mineral manures | 53-3/4 | 54-1/8 | 54 |
| 1000 lb. rape-cake, mixed mineral manures, and 3-1/2 cwt. superphosphate | 53-5/8 | 54-1/4 | 53-7/8 |
| Farmyard manure, 14 tons every year | 54-3/8 | 54-1/4 | 54-1/4 |
TABLE VI.—continued
| Produce per Acre—Average per Annum. | |||
| Manures per Acre per Annum. | Total straw. | ||
| 20 years, | 20 years, | 40 years, | |
| 1852-71. | 1872-91. | 1852-91. | |
| cwt. | cwt. | cwt. | |
| Unmanured continuously | 11-3/4 | 6-7/8 | 9-3/8 |
| 3-1/2 cwt. superphosphate of lime | 13-3/8 | 8-1/4 | 10-3/4 |
| Mixed mineral manures | 12-1/4 | 7 | 9-5/8 |
| Mixed mineral manures, 3-1/2 cwt. superphosphate | 14-3/8 | 8-3/8 | 11-3/8 |
| 200 lb. ammonium salts | 18-1/2 | 13-1/2 | 16 |
| 200 lb. ammonium salts, 3-1/2 cwt. superphosphate | 27-5/8 | 20-1/8 | 23-7/8 |
| 200 lb. ammonium salts, mixed mineral manures | 20-1/4 | 15-1/8 | 18 |
| Manures, 3-1/2 cwt. superphosphate of lime | 28-1/2 | 23-3/8 | 25-7/8 |
| 275 lb. nitrate of soda | 22-1/8 | 15-7/8 | 19 |
| 275 lb. nitrate of soda, 3-1/2 cwt. superphosphate | 30-1/2 | 23-3/8 | 27 |
| 275 lb. nitrate of soda, mixed mineral manures | 23-7/8 | 17-1/2 | 20-3/4 |
| 275 lb. nitrate of soda, mixed mineral manures, 3-1/2 cwt. superphosphate | 32-3/8 | 24-1/2 | 28-1/2 |
| 1000 lb. rape-cake | 26-7/8 | 20 | 23-3/8 |
| 1000 lb. rape-cake, 3-1/2 cwt. superphosphate | 28-3/8 | 21-1/2 | 24-7/8 |
| 1000 lb. rape-cake, mixed mineral manures | 27-1/8 | 19-7/8 | 23-1/2 |
| 1000 lb. rape-cake, mixed mineral manures, and 3-1/2 cwt. superphosphate | 29-3/4 | 21-7/8 | 25-5/8 |
| Farmyard manure, 14 tons every year | 28-1/4 | 29-3/4 | 29 |
Experiments on the Growth of Oats, 1869-78.