352 The Woburn Field Experiments , 1908. 
Table XII . — Lucerne and White Clover ; seed inoculated and 
not inoculated. 
Green produce per acre, 1908. 
Seed inoculated 
Seed not inoculated 
Argentine Lucerne — Plot 1 . 
C. q. lb. 
10 3 4 
C. q. lb. 
14 3 9 
13 1 26 
16 0 20 
10 3 4 
12 0 15 
8 0 10 
9 1 21 
13 1 26 
16 0 20 
21 2 8 
29 2 18 
22 3 19 
35 0 6 
29 2 18 
4 1 22 
35 0 6 
41 3 5 
26 3 24 
28 1 7 
Dutch White Clover 
27 2 0 
23 3 0 
Mammoth White Clover 
27 2 0 
26 1 0 
From this table it will be seen that in no single instance 
was there any gain by inoculation of the seed in the case of 
the lucerne, but that with white clover there was in each 
instance a small increase. 
This experiment will be continued in 1909. 
Potato Experiments with “Nitrolim” and Magnesia 
{Road Piece Field), 1908. 
Mention has been made already of an experiment with 
“ nitrolim ” (calcium cyanamide) used as a top-dressing for 
barley, as compared with sulphate of ammonia similarly used. 
It was decided to extend the trial of “ nitrolim ” to the potato 
crop and, at the same time, to include a comparison with nitrate 
of soda. Further, in consequence of the striking results 
obtained at the Pot-culture Station in regard to the influence 
of magnesia, it was resolved to try its effects also in the field. 
The variety of potato grown was “ Table Talk ” ; six 
different plots were marked out in Road Piece Field and each 
plot was manured alike with a general dressing comprised of, 
per acre : farmyard manure, 12 tons ; superphosphate, 3 cwt. ; 
and sulphate of potash, 1 cwt. 
In addition to this general manuring, three plots (Nos. 1, 2, 
and 3) had further nitrogenous applications in the respective 
forms of sulphate of ammonia, nitrate of soda, and “ nitrolim.” 
The basis of comparison was 1 cwt. per acre of sulphate of 
ammonia, the amounts of nitrate of soda (142 lb. per acre) 
and “nitrolim” (128 lb. per acre) applied containing the same 
amount of nitrogen as did the 1 cwt. of sulphate of ammonia. 
Plot 4 was left with the general dressing only, but plot 5 
received, in addition, 3 cwt. per acre of ground magnesia, and 
plot 6, 6 cwt. per acre of the same. 
