Middlebury register. (Middlebury, Vt.) 1886-1937, 1917-03-09
USING FERTILIZERS
ON THE GRASS CROP
FERTILIZERS
SUPPLY PLANT.
FOOD.

ram fOOu constituents
Of ammonia phOs-
phorlc acid and potash, ana some
times include lime. Fertilizer may be
applied directly to the grass crop, or
to other crops In the rotation, The eff
feet differs only in degree
Feeding the Previous Crop.
Wherever short rotation Is fol-
lowed, that Is, grass once In every
three or four years farmers have
found It profitable to fertIlI2e grass
through the medium Of the preceding
crop. In Virginia, some growers put
an extra amount of fertilizer on the
tobacco cg0p, turn n profit from this
through increased yields, and still
further profit from the larger grass
crop which follows. Potato farmers
In ArOostook county, Maine, carry out
the same idea, using from 1900 TO
1000 pounds Of fertilizer on potatoes,
and but little on the oats and grass
crops. Likewise the dairy farmers
in Massachusetts and Connecticut
have found, in short rotation, that
the cheapest way to get a good grass
crop Is TO fertllze heavily the crops
Immediately preceding, Experiment
station results show that these eXpe-
riences of practical farmers are sup
ported by the results of scientific
tests.
The Pennsylvania experiment sta
ton, on some of its rotation plots,
seeds down the grass and clover with
the wheat crop, The wheat crop Is
heavily fortified, the grass crop Is
not. Over long period Of years the
hay crop following the fortified
wheat had yielded nearly ton high
err than the hay crop following infer
tilted wheat.
The Ohio experiment station Is fol-
lowing fiye-year rotation-corn, oats,
wheat, grass and clover The corn,
oats and wheat are fortified; the
grass crop is not. As result Of
nearly 20 years work this station
has found an increase of l,250 pounds
of clover and 7GO pounds of timothy
(Second year hay) when sown in fer
tilted wheat as compared with the
same seed mixture when sown In UNI
fortified wheat.
The Virginia experiment station
found in one case that 1000 pounds Of
complete fertilizer per acre applied to
tobacco increased the succeeding hay
crop by more than two tons per acre,
and the year following gave still fur
Their increase of u bushels in the
corn crop,
Profitable Hay.
One of the best ways of getting a
large hay crop is to use liberal
amount of plantfood on the money
crops, or the grain crops, in the rota-
ton. This plantfood may be either
manure or fertiizers-but should uSu-
ally include both.
Fall Seeding Without Nurse Crop.
Where grass follows grass, or where
Il grain crop is not included in the ro-
tatlon, fertilizer must be applied at
the time of seeding down. Use 200 to
300 pounds per acre Of n fertilizer
Analysing two to three per cent ammo
mia, eight to ten per cent phOSphoriC
acid, and when possible four to five
per cent potash. Clay soils require
less potash than loans; sandy and
clay soils more nitrogen. This fOrmu-
In furnishes nitrogen enough to start
the crop, but leaves no surplus to be
lost by teaching 1t gets the mineral
elements-potash and phosphOrlc acid
so distributed through the soils as
to be of the greatest value, yet it is
not so costly as to be prOhibtive
Larger quantities must be used, how.
ever, when It is expected to keep the
field In grass for number of years
How and When to Top-Dress.
Just as the grass is turning green in
the spring, apply fertilizer Analysing
from six to eight per cent available nj
trOgen and three to five per cent phos-
phoric acid and as much potash as can
be economically purchased. On muck
soils more potash Is necessary, and
on sandy soils more phosphoric acid
Amounts Profitable to Apply.
This fertilizer gives the grass q
good start makes it grow rapidly dur.
ing the season when there is plenty
of water available, and gives worth
while increase in the crop. If hay
is usually worth $40 to $12 ton II
the barn, 200 pounds of the above fer
tilizer may be used. If it Is worth
SIS in the barn, 300 pounds gives @
higher acre profit. Finally, if the
farmer Is so located that his hay Is
worth $1S or over he can well afford
to use 400 to 500 pounds of this fer
tilizer, and make the hay crop the
most profitable crop on his farm. II
will then give more dollars for less
labor than any other crop which he
can produce.
Permanent MoWings.
When land Is cropped permanently
to grass, yields are usually lower thar
In rot8 tion mowings. The field become.
rootbOund and fertility sometimes be
cnmns so low TINT the crnn Is nftnn no.