|
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 |
-------------------------------------+------------+------------+------------+

-------------------------------------+--------------------------------------
| 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