“ Head ” and “ Tail ” Barley. 
301 
the non-working, of the nitrogen, whereby a result is obtained 
in practice which is so different from that which theoretical 
considerations would lead one to expect ? 
Table XI. — Green-manuring Experiment ( Lansome Field). 
Produce of Wheat per acre, 1906. 
Plot 
Manuring 
Head corn 
Tail 
corn 
Straw, chaff, 
&c. 
Weight 
Bush. 
Weight per 
bushel 
Weight 
Lb. 
Lb. 
Lb. 
T. c. q. lb. 
1 
Tares ploughed in, with 
' 
mineral manures . 
1,540 
24-5 
62-7 
63 
0 17 1 24 
2 
Tares ploughed in, with 
lime .... 
1,592 
25-7 
61-8 
48 
0 17 3 14 
3 
Rape ploughed in, with 
mineral manures . 
2,076 
33-6 
61*7 
66 
15 2 7 
4 
Rape ploughed in, with 
lime .... 
2,216 
35-8 
61-8 
60 
1 6 3 20 
5 
Mustard ploughed in, with 
mineral manures . 
2,357 
37-6 
62-6 
66 
1 8 0 15 
6 
Mustard ploughed in, with 
lime .... 
2,132 
34-1 
62-6 
63 
14 2 8 
“Head” and “Tail” Barley {Lansome Field), 1905. 
This was a repetition of earlier experiments on this subject. 
It might be more accurate to describe the corn sown as “ large ” 
and “ small ” grains, inasmuch as it was not the whole “ tail ” 
corn as screened out that was sown, but in the one case the larger 
and plumper grains, and in the other the smaller grains that 
were used. Both lots were taken from the same crop. Three 
plots were selected on Lansome Field ; on one of them the 
larger grains or “ head ” corn were sown at the rate of 8 pecks per 
acre, on a second plot the same quantity (8 pecks) of small corn, 
and on a third the small corn at the rate of 12 pecks per acre, 
the weight of corn sown in this case being the same as that 
of the 8 pecks of “ head ” corn. The barley followed white 
turnips fed off with cake and was drilled on April 18, 1905, 
3 cwt. per acre of superphosphate being given on April 22. 
At the end of May the “ tail ” barley looked just as well as the 
“ head.” The appearances of the plots caused much interest 
to visitors to the farm and opinions were much divided as 
to which plot would turn out best. The plots were cut on 
September 1, carted on September 4, threshed and weighed 
on February 1, 1906. The results are given in Table XII., 
page 302. 
