- •Introductory
- •3. Agriculture and the industries. ВЂ” Agriculture is at
- •Introductory 3
- •Introductory * 5
- •Inous substance develops on the outside of the cell-wall
- •30 The Principles of Agronomy
- •Ings around the stopper and plant be sealed to prevent
- •200 Pounds of water
- •Ing herds ; cats and birds in the control of mice and in-
- •Interaction of the elements.
- •It shall be for meat" (Genesis I. 28, 29).
- •82. How to modify structure. ВЂ” The structure of a
- •98. Need for preventing evaporation. ВЂ” The plant
- •122. Composition of soils. ВЂ” Soils are made up largely
- •133. How to determine fertilizer needs. ВЂ” In the
- •Is completed by bacteria. The carbon of the organic
- •162. Reasons for rotation of crops. ВЂ” Some sort of
- •152 The Principles of Agronomy
- •Influence the amount of erosion that will take place.
- •169. Methods of preventing erosion. ВЂ” Erosion cannot
- •180. The kernel, dry and fairly smooth, has a deep
- •174 The Principles of Agronomy
- •It grows on sands, loams, clays, and silts, avoiding the
- •184. Seed and seeding. ВЂ” Farmers had better use
- •In wheat. High nitrogen and low moisture content in
- •197. Prices vary a few cents according to grade. In
- •If a man buys a million bushels and holds it for a time,
- •221. Uses and value. ВЂ” About nine-tenths of the
- •224. Description. ВЂ” The oat plant has a fibrous root-
- •226. Distribution. ВЂ” Oats are naturally adapted to
- •Is not so good seed as a smaller one from a good hill. It
- •250. Cutting and planting. ВЂ” How large to cut the
- •266. Manufacture of sugar. ВЂ” When the factory is
- •279. Flowers and seed. ВЂ” At blossoming time, each
- •In liberal quantities, as it is likely to be where no leaching
- •270 The Principles of Agronomy
- •297. Crimson clover (Trifolium incarnatum), much
- •311. Description. ВЂ” Timothy bears a slender, spike-
- •327. Value and use. ВЂ” Orchard-grass yields about as
- •Various crops so selected, planted, and arranged as to
- •In other groups. The stalks are fine and leaves more
- •366. Distribution and adaptation. ВЂ” As might be
- •Vators, good harrows, and efficient plows have been in-
- •373. Harvesting and marketing. ВЂ” As soon as the bolls
- •380. Miscellaneous fibers. ВЂ” Manila hemp, or abaca
- •389. Sweet potatoes. ВЂ” Most of the sweet potato
- •401. Artificial selection. ВЂ” Because man has put his
- •390 The Principles of Agronomy
- •430. Work in producing various crops. ВЂ” In arranging
- •Very simple. During the last century, however, there
- •434. Machines that are seldom used. ВЂ” Some pieces
- •444. Keeping records. ВЂ” The fanner cannot, without
- •406 The Principles of Agronomy
- •621. Marketing Farm Products.
- •430 Appendix
- •Is the anther or pollen-case, and this is usually borne on a stalk
- •Ing and marketing the product. It treats in detail some eighteen individ-
311. Description. ВЂ” Timothy bears a slender, spike-
like panicle from one to twelve inches in length on a
slender culm one to six feet in height. From three to
eight leaves branch off from the upright stem. As the
roots are not strongly stoloniferous, the plant does not
Grasses 289
sod heavily. An enlarged stem known as a conn forms
a base for the dozen or so culms. As many as two hun-
dred stems have grown on one plant.
A patch of timothy shows purple when in bloom ; green
when headed completely; and whitish when the seed is
ripe. During early growth, however, only the leaves
show. These bend in graceful curves from a central
stem. Seed of timothy is small — not over one-fourth
millimeter in diameter — with a thin, transparent,
adnate hull. Since germination power is high, good
stands are easily obtained. The seed loses less in via-
bility through age than does that of other grasses. Eighty
per cent of two-year-old seed may be expected to grow.
312. Adaptation. — Cool, moist climates and clay or
clay loam soils offer the most favorable opportunities
for maximiun yields. Severe drouth kills it almost im-
mediately; hot weather, even in humid sections, lessens
its vigor; cold is favorable to some extent as indicated
by the fact that the plant is native in Europe as far north
as the seventieth parallel. Favorable conditions exist
in many high valleys in the West, especially where streams
supply abundant irrigation water. In spite of its fond-
ness for moisture the plant suffers from water-logging.
In fact, timothy and red clover are mixed to a great extent
because the same conditions favor both. In the United
States the production of timothy ranks as follows ac-
cording to states: (1) New York, (2) Iowa, (3) Ohio, (4)
Missouri, (5) Illinois, (6) Pennsylvania, (7) Wisconsin,
(8) Michigan, (9) Indiana, and (10) Minnesota with
Ottawa and Ontario in Canada heavy producers. Red
clover ranks nearly the same as timothy according to
states. Every state produces some timothy.
313. Culture. — Fine, moist, firm seed-beds are essen-
tial in procuring #uccessful stands of timothy — of any
290 The Principles of Agronomy
crop having very small seed. Well-decayed organic
matter increases both moisture and fertility. Fall-
plowing permits frost to mellow the surface; winter
storms dampen and firm the seed-beds for spring planting.
About half the crop of the United States is sown in
the fall with winter wheat for a nurse crop. In this case
a grass seed attachment drops the seed just in front of,
or just behind, the shoes of the drill. A light harrowing
covers the seed, though Piper ^ thinks deeper planting
would be better. The seeds must touch moist soil in
order to germinate, and shoidd be planted from a half
inch to one inch in depth depending on the season and
soil. Seed may also be planted in the fall without a nurse
crop, and in spring with, or without, a nurse crop.
Broadcasting both by hand and by means of the wheel-
barrow seeder is much practiced. Irrespective of the
method used in planting, the farmer shoidd sow about
fifteen pounds of seed to the acre.
In some sections, corn or potato land is prepared by a
thorough harrowing without previous plowing. In most
sections, however, fall-plowing, spring-harrowing, and
drill-sowing give the most satisfactory stands. Fre-
quent irrigations pay on lands that have good drainage.
Heavy applications of farmyard manure to the stub-
ble pay. Where commercial fertilizers are used, nitrog-
enous manures make most prpfitable returns. Clover
mixtures serve this purpose.
Timothy ought to be cut as soon as the blossoms fall,
but it does not deteriorate rapidly until the seed reaches
the soft dough stage. This enables the farmer to utilize
a later harvesting season than for any other forage crop.
The hay cures readily, being in many cases hauled on the
same day that it is cut. In humid sections, tedders, side-
* Piper, Forage Plants, p. 130.
Grasses
291
delivery rakes, and loaders are widely used ; in the West,
it is handled largely as alfalfa. Derricks are used to
build stacks and tracks to fill bams. The first crop bears
most seed. Grain binders commonly harvest the seed
crop, which is threshed in an ordinary separator with
special sieves.
314. Use and value. — The most important use of
timothy is for hay, since the pastures yield but little feed
and the sod weakens under tramping. As a silage or a
soiling crop it is little used. Though the standard hay
crop of America, its intrinsic feed value is less than that
of the clovers or alfalfa on account of its lacking the high
Table 3. Acreage and Yields of Forage Crops in the
United States. (From Piper.)
Crop
Timothy (alone) ....
Red clover (alone) . . .
Timothy. and clover
(mixed) ^ . . . .
Timothy (total) ....
Red clover (total) . . .
Alfalfa
Cereals for hay ....
Other tame grasses . .
Sorghums
Millet
Cowpeas
Canada peas
Kentucky blue-grass . .
Brome-grass
All other tame grasses
Wild grasses
Acre-
yields
1.22
1.29
1.22
1.29
2.52
1.24
.99
1.05
1.38
1.00
1.00
1.00
1.00
1.00
1.07
Acres
14,675,000
19,536,000
24,457,584
12,274,454
4,704,146
4,324,878
4,218,957
2,078,242
1,117,769
1,100,000
250,000
100,000
1,000,000
600,000
17,186,522
Tons
30,359,698
15,532,602
11,859,292
5,367,292
4,166,772
3,118,863
1,546,533
1,100,000
250,000
800,000
100,000
600,000
18,383,574
Per Cent
31.2
15.9
12.2
5.5
4.3
3.2
1.6
1.1
.3
.8
.1
.6
18.9
^ Taken as half clover and half timothy when grown in mixture.
292 The Principles of Agronomy
protein content of legumes. Common grasses vary little
in food value or digestibility. Palatability, ease of cur-
ing, prolific seed production, healthfulness, and yield-
ing power determine what grass is most profitable to grow.
Timothy excels other grasses in these qualities. Market
demands influence price; the prejudice of farmers and
stockmen also plays a part, often not an insignificant
one. Timothy has an advantage also in that it is the
standard market hay, and that many stockmen prefer
it to clover and alfalfa, in spite of the fact that it surpasses
them only for feeding driving horses.
316. Enemies. — Bill-bugs and joint-worms cause some
insect injury; a rust and a smut infest the plant. The
greatest harm, however, comes from leaving meadows
sown too long without rotation. This causes the stand
to be so thin as to reduce yields materially.
REDTOP {Agrostis alba)
316. Description. — Redtop is so called from the dis-
tinctly reddish appearance of a field of it in bloom. It
is more long-lived than timothy, its stems are more slender
but tougher, its leaves finer, its sod more compact but
more shallow, and its panicle much more spreading. The
seeds are small, light, triangular in shape, and generally
grayish-brown in color. The compact sod is a result of
numerous rootstocks, and of decimibent stems sending
out roots from the nodes.
317. Adaptation. — As redtop withstands water-log-
ging to a marked degree, it replaces timothy on very
wet land, sometimes growing in sloughs or bottom-lands
in which water stands part of the year. It resists as
much cold as timothy and more heat. It grows in all
parts of the United States and as far north as Alaska.
Grasses 293
It has an extremely wide adaptability in regard to soils,
provided they are wet. Strange to say, when once es-
tablished it resists considerable drouth.
318. Culture. — Pastures nearly always contain red-
top in mixtures, but seldom does it fonn fields grown by
itself. Since seed varies much in viability, from two to
fifty pounds are planted, from two to ten pounds being
common in mixtures. Much of it on wet land is started
by broadcasting the seed, often without any cultivation,
whatever. For hay, it is handled as timothy. In irri-
gated pastures, it occupies the wettest places.
319. Value and use. — As feed, it is much less palat-
able than timothy or blue-grass, but because of being
able to endure water-logging and tramping it is valuable.
It grows well on soils too wet or too acid for blue-grass
and timothy, and grows wild on many of the boggy range
lands, where it supplements the native grasses. In lawns
it fonns a fairly smooth sod, but becomes coarse unless
kept well cut.
On the market it is considered an adulterant of timo-
thy, the price of which it lessens. As the yield is fair,
no particular objection can be made to it.
KENTUCKY BLUE-GRASS (Poa proteusis)
320. Description. — Kentucky blue-grass is marked
by its smooth, firm sod, fine stems, and blue-colored
leaves, which end without a distinct point. The panicle
is loose and turns whitish at maturity. There are sev-
eral blue-grasses, but the only other common one is
Canada blue-grass (Poa compressa), which may be told
by its sparsity of leaves, tough stem, and compressed
panicle. It yields less than Kentucky blue-grass, being
considered a weed on that account.
294 The Principles of Agronomy
321. Adaptation. — Apparently no degree of cold
knis this grass, though it loses vigor in hot summers
even when abundant water is supplied. Naturally
adapted to temperate regions, it thrives in this zone
wherever sufficient moisture falls on welWrained soils
that are rich in lime. It can endure neither acidity nor
water-logging. Nearly all of the seed grown in the United
States is produced on a few hundred square miles near
Lexington, Kentucky, which is in the heart of the Blue-
grass Region.
322. Culture. — Because of the low vitality of the
seed, heavy seeding is required for good stands. If
sown alone, forty pounds may be needed. Usually
the farmer sows smaller quantities in mixtures. In many
cases blue-grass, due to persistent spreading by means of
rootstocks, will drive out other crops, leaving nearly a
straight stand. Fine, moist soils, well mixed with humus,
are best. The seed is most often broadcasted and har-
rowed. Better stands may be had on lawns by covering
them with straw, or by shading in another way. Nurse
crops may or may not help in field culture. This de-
pends on soil and climatic conditions.
323. Use and value. — Blue-grass yields little forage
that may be gathered for hay. As a pasture plant, it is
king in America, though meadow-foxtail is most popular
in England. Mixed with white clover,' Kentucky blue-
grass forms the best pastures in this country and also
the best lawns in the North and West. Bermuda-grass,
however, supplants it in the South.
Its popularity for pasture is not without reason.
Though yields are small, it is so aggressive that bare
spots are soon filled. It gains rather than loses under
heavy pasturing, if it gets sufficient moisture. All ani-
mals are fond of the grass when it is green. When dry it
Grasses 295
is much less desirable, however. In palatability, fresh
blue-grass excels all others, with the possible exception
of smooth brome-grass. On account of its aggressiveness,
it is a bad weed in clover and alfalfa fields. The legumes
yield much more heavily> and suffer when blue-grass
creeps in, since it eventually crowds them out, unless
frequent harrowings or occasional rotations follow.
ORCHARD-GRASS (Doctylis glomerato)
324. Description. — Orchard-grass is a deep-rooted,
rather rank-growing, bunchy, yet leafy grass. The shape
of the panicle suggests a cock's foot, by which name it is
known in England. Bunching is due to vigorous roots
devoid of stolons. Tufts sometimes two feet across cause
decidedly rough surface, bare in many places. These
tufts are strongly netted by means of many tough, fibrous
roots. Undoubtedly, the plant roots three or four feet
deep in favorable soil.
326. Adaptation. — Heat injures orchard-grass less
than it does timothy or blue-grass, but cold hurts it much
more seriously. The natural place for its cultivation
is just south of the timothy belt. It is to be regretted
that timothy has gained such a hold that other useful
grasses, such as orchard-grass, oat-grass, and brome-grass,
were not tried in regions too warm or too dry for the
greatest development of timothy. Porous, well-drained,
fertile soils permit orchard-grass to make best growth.
The plant uses considerable moisture to advantage,
though, when necessary, it can, with the help of deep
roots, endure rather severe drouths. As shade does not
injure the crop to a great extent, it does well in orchards.
326. Culture. — Similar care as to preparation of the
land for sowing, and method of scattering the seed,
296. The Principles of Agronomy
should be observed in the case of orchard-grass as in that
of the other grasses. Both spring and fall planting suc-
ceed. Fall planting should take place early enough to
permit some growth before winter ; spring planting gives
best results when the ground has become warm but is
still damp.
When sown alone for hay, from twenty-five to forty
pounds of seed are used. More commonly, from four
to ten pounds are planted in mixtures. Patches grown
for seed require a stand only half as thick as hayfields.
Orchard-grass makes the best hay when cut in early
bloom, as the stems become woody very rapidly, thus
decreasing palatability. Because this grass matures
several days before most other grasses, mixtures are
usually unsatisfactory for hay on account of the varia-
tion in time of cutting. Harrowing and manuring help
to keep up yields and to prevent the growth of excessively
large bunches. Applications of irrigation water up to
thirty or forty inches pay in the West, though smaller
quantities yield more in proportion to the water used.
