256 Report on the Experiments with Clovers at Woburn. 
Table VI. — White Clover, Dutch Grown. 
1883. 
1885, 
Plot. 
Per Acre. 
Plot. 
Per Acre. 
1. No Manure .. 
2. Bone-dust and Su-'l 
perphos / 
3. Sulphate t)f Potash 
4. Sulph. of Ammonia 
5. Nitrate of Soda . . 
6. 2 and 3, with 4 .. 
7. 2 and 3, with 5 . . 
Qrs. 
5 
7 
7 
7 
7 
8 
8 
lbs. 
27J 
3 
9J 
2J 
7f 
7| 
2 
Tons. 
11 
13 
13 
13 
13 
15 
15 
cwts. 
4 
8 
17 
7 
14 
12 
4 
qrs. 
1 
1 
0 
2 
2 
1 
2 
lbs. 
26f 
5 
6i 
13J 
22i 
221 
22 
Qra. 
lbs. 
23J 
4i 
5 
5f 
H 
Tns. 
1 
2 
2 
2 
2 
2 
2 
cwts. 
11 
4 
4 
5 
5 
15 
10 
qrs. 
2 
0 
1 
2 
0 
2 
2 
lbs. 
20i- 
n 
27 
01 
18J 
123 
6J 
The produce of the seven plots of this clover in 1883- 
amounted to 12 cwt. 3 qrs. 3f lbs., while in 1885 it was 
2 cwt. 0 qr. 11^ lbs. Plot 6 was the best in both fields, and the 
others were very nearly equal. 
The testimony given to the duration of the life of those 
various clovers will be more apparent if the total yields of the 
seven plots of each sample for 1883 be compared with those of 
1885, and the relative proportions of these yields be noted. 
Table VII. — Total Yield of the Seven Plots. 
1883 
1885 
No. of 
times less. 
Cwts. 
qrs. 
lbs. 
Cwts. 
qrs. 
lbs. 
Perennial Eed Clover, A. 
13 
1 
1 
1 
27* 
9- 
Perennial Eed Clover, B. 
14 
3 
241 
1 
0 
18i 
13- 
15 
3 
5 
1 
Of 
3- 
17 
1 
181 
6 
2 
13J 
2-6a 
English White Clover . . 
11 
3 
u 
5 
0 
121 
2-3 
Dutch "White Clover 
12 
3 
3f 
2 
0 
U\ 
6-36 
This table shows that both the perennial red clovers had 
nearly disappeared — in the one sample the yield, in 1885, being 
only ^th of that in 1883, and in the other ^th. The next to 
show marked deterioration is the Dutch-grown white clover, 
when the decrease was more than a sixth. The cowgrass of 
commerce, though, as I believe, only a variety of Trifolium 
perenne, Linn., or perennial red clover, shows a much greater 
power of maintaining its life, giving a crop only one-third lesff 
in 1885 than in the former year. Alsike was scarcely one-third 
less, while English-grown white clover yielded nearly one-half 
the crop in 1885 that it produced in 1883. 
The experiments would have been carried on till the clovers 
