404 
The Woburn Field Experiments , 1913. 
Simultaneously with the foregoing, the two small plots 
outside the pot-culture enclosure, and on which wheat had 
been grown in 1911 and 1912, were again sown with wheat. 
It may be here repeated that one plot was that of the natural 
soil containing lime *77 per cent., magnesia ’20 per cent., and 
the other had magnesia applied to it in November, 1910, to 
make up the percentage of magnesia in the soil to -40 per cent, 
the lime remaining the same, viz., -77 per oent. 
In 1912 the plot with added magnesia produced half as 
much again corn and straw as did that without magnesia. No 
further addition of magnesia was now made, so that the wheat 
crop of 1913 was the third successive one since the magnesia 
was applied. 
There was no marked difference between the crops on the 
two plots, and, at harvesting, the results were as follows : — 
Corn 
Lb. 
No treatment . . 3 
Magnesia added . 3 
Nitrogen Moisture 
in in 
Straw grain grain 
Lb. Per cent. Per cent. 
41 1-83 13-36 
51 2-06 13-25 
It will thus be seen that there was no difference of corn, 
but some increase of straw in the third year, resulting from 
the use of the magnesia. 
The corn was collected, and, being under control, was 
obtained in excellent condition. The value of it was put at 
32s. 6d per quarter on a basis of 32s., this being the same for 
each of the two lots. The valuer further reported that it was 
very fine wheat, well grown and in splendid condition, showing 
both strength and bloom. 
The marked difference in quality, and in consequent valua- 
tion, between the wheat in this case and that of the 
corresponding plots in Lansome Field was due entirely to the 
conditions under which the respective crops were grown and 
harvested. It emphasises clearly the disadvantage which may 
result from threshing corn direct out of the field under 
unfavourable weather conditions. 
The high percentage of moisture in the grain from Lansome 
Field indicates the uneven character of the ripening of the 
crop, whereas the moisture figure for the grain grown at the 
pot-culture enclosure was considerably lower. It will be 
noticed, however, that in each case the grain grown with 
magnesia contained more nitrogen than that grown without 
magnesia. 
Clover and Grass Mixtures. 
Series B. Stackyard Field. 
On that portion of the field where, in 1912, varieties of 
barley had been grown, the barley was under-sown with two 
