, 1596 Bulletin N0. 188.
(45 and 90 pounds per acre) nor iron sulfide containing 50 per
cent of sulfur (90 and 180 pounds per acre) affected the yields S
significantly, but with the same amount of nitrogen in the
form of dried blood, both sulfur and sulfide increased the
yield from 30 to 60 per cent.
Magnien" cites experiments in which sulfur scattered in
the rows at the rate of 2 to 3 grams per meter at planting
time apparently doubled the yields of turnips and beets.
H. vo.i Feilitzenl found that of the five varieties of pota-
toes experimented with during 1911,all but one yielded more on ‘
the plots receiving 356 pounds of sulfur per acre in addition
_ to normal fertilizers than on those that did not receive sul-
fur and the tubers were larger and better developed. .
Chauzit“ reports results which show that when 178 pounds
of sulfur are added to the soil without the addition of other
fertilizers, the yield of grapes was increased from 2 to 20
percent. When used with other fertilizers, its action was
more marked, giving yields from 9 to 35 per cent greater than _
the yields with the plain fertilizers. The sulfur gave the best
results with fertilizers high in organic matter.
While most of the experiments on the use of sulfur ferti-
lizers have been made in foreign countries. nevertheless there
has been some work along this line in the United States and
it might be of interest to mention it here.
’l`ottingham," of the Wisconsin Experiment Station,
has shown in some greenhouse experiments that in the case
of rape and radishes, both of which plants contain consider-
able sulfur, the application ofsulfur fertilizers had a marked
ell`ect on the yields of dry matter.
Lipman, Blair, Owen and McLean,"’ of the New Jersey
Iixperiinent Station, report the results of four years plot
experiments with corn, oats, wheat and timothy, using
ferrous sulfate at the rate of 50, 100 and 200 pounds
per acre, and gypsum at the rate of 200, 500 and 1000
pounds per acre in connection with other necessary
fertilizing materials. The results show that there was
an increase in dry matter and total nitrogen in every
ease where ferrous sulfate was used. The plot receiving