f(rr Twenty Years in succession on the same Land. 211 
— maintain the yield at a slightly higher point than it will reach 
on the absolutely unmanured land. 
Table XXV. — Average Annual Produce of Barley without Manure, aud with 
Ashes (burnt soil and turf.) 
Average Annual Pkodtoe. 
Second 
Plots. 
First 
10 Years, 
1852-'61, 
Second 
10 Years, 
1862-71. 
Total 
Period, 
20 Years, 
1852-71. 
10 Years 
over 
(or under— ) 
First 10. 
Dressed Corn, per Acre — Bushels. 
1 0 
6 1 
6 2 
Unmanured continuously (duplicate) 
221 
25 
17J 
181 
20 
20 
22 
211 
Per Cent. 
-21-8 
-24-5 
- 16-2 
Total Corn, per Acre — lbs. • 
1 0 
6 1 
6 2 
Unmanured continuously (duplicate) 
1281 
1414 
1352 
985 
1070 
1138 
1133 
1242 
1245 
-23-1 
-24-3 
-15-8 
Straw (and Chaff), per Acre — Cwts. 
1 0 
6 1 
6 2 
Unmanured continuously (duplicate) 
13i 
14 
13 
lOi' 
lOf 
lU 
Hi 
12i 
12J 
-23-4 
-23-2 
-13-5 
Total Produce (Corn, Straw, and Chaff), per Acre — lbs. 
1 0 
C 1 
6 2 
Unmanured continuously (duplicate) 
2782 
2987 
2814 
2126 
2273 
2391 
2454 
2630 
2603 
-23-6 
-23*9 
-15-0 
Weight per Bushel of Dressed Corn — lbs. 
1 0 
6 1 
6 2 
Unmanured continuously (duplicate) 
51-6 
51-5 
51-6 
53-1 
53-5 
53-6 
52-3 
52-5 
52-6 
2- 9 
3- 9 
3-9 
Corn to 100 Straw. 
1 0 
6 1 
6 2 
Unmanured continuously (duplicate) 
20 Bushels ashes 
85-9 
89-8 
92-0 
87-3 
89- 4 
90- 9 
86-6 
89-6 
91-4 
1 
1-6 
- 0-4 
- 1-2 
At any rate, the fact that the plot manured with ashes has, 
U 2 
