FERTILIZER EXPERIMENTS WITH SUGAR BEETS. 
7 
cing 1.7 tons more than the other with fifty pounds. It is very likely 
that the increase in Plat 10 was not entirely due to the larger quantity 
of nitrate in the complete fertilizer, as the yields from these plats 
during the next two years seem to show that the soil on Plat 10 had 
greater producing capacity than the adjacent No. 9. When it is 
considered that the two complete fertilizers contained nearly the 
same amount of nitrogen, the less nitrate in one being balanced by 
more dry blood in the other, and that the average yield of the two 
plats is the same as the unfertilized plat, it is hard to ascribe any 
effect at all upon the yi&d due to the nitrogen in the complete fertil¬ 
izers. The curious fact appears here in the complete fertilizers, 
as. well as during the tests of the next two years, that phosphoric 
acid and potacli in the presence of nitrogen on our soils seems to neu¬ 
tralize to a great extent the beneficial effect of the nitrogen upon the 
yield when compared with the results from nitrogen used alone. 
In the results from this experiment the highest sugar content 
and purity are associated with the lowest yields, the highest being 
found in the lowest yielding plat, No. 9, with the complete fertilizer, 
and the lowest sugar content in the highest yielding plat, No. 4 , 
with nitrate of soda, with the exception of the one with excessive 
quantity of manure. 
In this test also the phosphate form the bone meal, although in¬ 
effective upon the yield when used alone, with nitrate it seemed to 
a great extent to prevent the lowering of sugar content and purity, 
the nitrate and bone meal plat giving the highest yield of sugar per 
acre of any plat in the series, while the one with the excessive quan¬ 
tity of manure produced the least, the unfertilized plat giving the 
next lowest amount of sugar per acre. 
FERTILIZER EXPERIMENTS IN 1904 
On Field C3. —The fertilizer experiment for this season was 
planned to include a series of all three elements, used in about the 
proportion which experiments elsewhere had proven to be fair average 
quantities. As nitrate bone meal had shown only negative results the 
previous year, acid treated phosphate rock or superphosphate as the 
source of the phosphoric acid was used, and this season it was planned to 
give a more thorough test with nitrate of soda which had given 
the best results in 1903. The same, as well as twice the amounts 
used in 1903 were given in one application at the time of planting, 
and also in three applications. High grade sulphate of potash 
was employed as a source of the potash. Refuse lime cake from 
the sugar factory was also used on one plat. This is the refuse 
lime which has been used in refining and purifying the juices 
in sugar making, and contains a small proportion of phosphoric 
acid and nitrogen, large quantities of which are used as a fertilizer 
on the sugar beet soils of Germany and it was thought it 
might have some effect upon our soils. Such, however, proved 
not to be the case. The thoroughly air dried lime cake was 
