The Woburn Field Experiments , 1913. 
409 
(6) Varieties of Lime. 
The different applications were given in 1910. The plots 
were cut for hay June 21-26, and the weights of hay, together 
with the results of Prof. Biffen’s botanical examination, are 
given in Table XIV. 
Table XIV. — Varieties of Lime on Grass Land ( Broad 
Mead). 
Produce of Hay per acre, with Botanical Results, 1913. 
' 
Weight of Hay 
Percentage of 
Plot 
Lime applied, 1910 1 
per acre 
Grasses 
Legumi- 
nosaa 
Weeds 
1 
Buxton lime 
T. c. q. lh. 
1 12 1 0 
95 
3 
2 
2 
Chalk lime . 
1 13 2 0 
93 
4 
3 
3 
Magnesia lime 
1 14 2 0 
95 
2 
3 
4 
No lime 
1 10 1 0 
94 
2 
4 
5 
Lias lime 
1 14 1 0 
92 
4 
4 
6 
Oolite lime . 
1 10 2 0 
94 
4 
2 
1 Two tons per acre in each case. 
The differences, whether in crop-weight or in botanical 
composition, are not strongly marked. In general appearance 
plots ! and 2 (Buxton lime and chalk lime) seem the best in 
the field. It will be noticed that the leguminosse are lowest in 
amount on plots 3 and 4 (magnesian lime and no lime). 
(c) Different forms of Lime. 
This experiment was only commenced in 1913, the different 
applications being made on February 12. 
The plots were cut and made into hay June ^1-,-b. ilie 
weights of hay are given in Table XV. 
Table XV . — Different Forms of Lime on Grass Land 
( Broad Mead). 
Weights of Hay per acre in 1913. 
Plot 
1 
2 
3 
4 
5 
Lime applied, 1913 1 
Lump lime 
Ground lime . 
Nothing . 
Ground limestone 
Ground chalk . 
T. c. q. lb. 
1 16 2 0 
17 3 0 
14 0 0 
15 3 0 
19 2 0 
~ 20s. per acreTinVqVkdektlyVfVarrtage, cartage, &c.) was spent on each plot for the 
It is too early as yet to draw any conclusions, but, so far as 
the work has gone, ground chalk appears to have done well. 
