120 TIMEHRI, 
the average results of all the crops with the various 
manures :— 
No manure ode a0 ... 18.2 tons of canes per acre, 
Mixed minerals and Sulphate ofammonia ...26' ,, a 
= at » Cotton seed meal Bere Se os = 
a » Nitrate of soda a Pn BS a 
$ x » Dried blood PS, ey : = 
It is noteworthy that these experiments, which show > 
a high rate of increase for nitrogenous manurings, were 
made with the Purple Transparent cane, a variety which at 
the Botanic Gardens has over a long series of years given 
a yield of only 22°75 tons per acre when receiving about 
50 lbs. of nitrogen per acre in the manures applied. 
The Barbados experiments were started a few months 
before the Louisiana ones, and were at first arranged for 
the purpose of deciding broad questions with regard to 
sugar cane manures, but after I left that colony the experi- 
ments were, In my opinion, unwisely, re-arranged and 
modified, in the hopes of settling what may be considered 
to be local matters of detail with regard to the constitu- 
ents of cane manures and their application. Judging solely 
from the reports for 1891~1896, the experiments, adversely 
affeCted by drought and by the prevalence of diseaseamong 
the canes, have completely failed in this obje&t, and have, 
during these years, added comparatively little to our 
knowledge of the manurial requirements of the sugar cane, 
In the four crops 1887-8-g and ’go during which I 
was responsible for the arrangement of the experiments, 
the average annual yields of canes with and without 
nitrogen were as follows :— 
No manure 19'5 tons of canes per acre, 
Mixed minerals 25'3 » ” ”» 
rs mt and 40 lbs, Nitrogen ans e : «a i 
£ wv and 80 lbs, Nitrogen 341 a . pa 
— 
OO er 
