I had sped across Europe to Venice, and noted with interest the

admirable, effective irrigation of the great plain of Lombardy, before I

could call any land my own. I saw there a region perhaps thirty miles

wide by one hundred and fifty along the east bank of the Po, rising very

gently thence to the foot of the Austrian Alps, which Providence seems

to have specially adapted to be improved by irrigation. The torrents of

melted snow which in Spring leap and foam adown the southern face of the

Alps, bringing with them the finer particles of soil, are suddenly

arrested and form lakes (Garda, Maggiore, Como, etc.) just as they

emerge upon the plain. These lakes, slowly rising, often overflow their

banks, with those of the small rivers that bear their waters westward to

the Po; and this overflow was a natural source of abiding fertility. To

dam these outlets, and thus control their currents, was a very simple

and obvious device of long ago, and was probably begun by a very few

individuals (if by more than one), whose success incited emulation,

until the present extensive and costly system of irrigating dams and

canals was gradually developed. When I traversed Lombardy in July, 1851,

the beds of streams naturally as large as the Pemigewasset, Battenkill,

Canada Creek, or Humboldt, were utterly dry; the water which would

naturally have flowed therein being wholly transferred to an irrigating

canal (or to canals) often two or three miles distant. The reservoirs

thus created were filled in Spring, when the streams were fullest and

their water richest, and gradually drawn upon throughout the later

growing season to cover the carefully leveled and graded fields on

either side to the depth of an inch or two at a time. If any failed to

be soon absorbed by the soil, it was drawn off as here superfluous, and

added to the current employed to moisten and fertilize the field next

below it; and so field after field was refreshed and enriched, to the

husbandman's satisfaction and profit. It may be that the rich glades of

English Lancashire bear heavier average crops; but those of Lombardy are

rarely excelled on the globe.

Why should not our Atlantic slope have its Lombardy? Utah, Nevada, and

California, exhibit raw, crude suggestions of such a system; but why

should the irrigation of the New World be confined to regions where it

is indispensable, when that of the Old is not? I know no good reason

whatever for leaving an American field unirrigated where water to flow

it at will can be had at a moderate cost.

When I first bought land (in 1853) I fully purposed to provide for

irrigating my nearly level acres at will, and I constructed two dams

across my upland stream with that view; but they were so badly planned

that they went off in the flood caused by a tremendous rain the next

Spring; and, though I rebuilt one of them, I submitted to a

miscalculation which provided for taking the water, by means of a

syphon, out of the pond at the top and over the bank that rose fifteen

or twenty feet above the surface of the water. Of course, air would work

into the pipe after it had carried a stream unexceptionably for two or

three days, and then the water would run no longer. Had I taken it from

the bottom of the pond through my dam, it would have run forever, (or so

long as there was water covering its inlet in the pond;) but bad

engineering flung me; and I have never since had the heart (or the

means) to revise and correct its errors.

My next attempt was on a much humbler scale, and I engineered it myself.

Toward the north end of my farm, the hill-side which rises east of my

lowland is broken by a swale or terrace, which gives me three or four

acres of tolerably level upland, along the upper edge of which five or

six springs, which never wholly fail, burst from the rocks above and

unite to form a petty runnel, which dries up in very hot or dry weather,

but which usually preserved a tiny stream to be lost in the swamp below.

North of the gully cut down the lower hill-side by this streamlet, the

hill-side of some three acres is quite steep, still partially wooded,

and wholly devoted to pasturage. Making a petty dam across this runnel

at the top of the lower acclivity, I turned the stream aside, so that it

should henceforth run along the crest of this lower hill, falling off

gradually so as to secure a free current, and losing its contents at

intervals through variable depressions in its lower bank. Dam and

artificial water-course together cost me $90, which was about twice what

it should have been. That rude and petty contrivance has now been ten

years in operation, and may have cost $5 per annum for oversight and

repairs. Its effect has been to double the grass grown on the two acres

it constantly irrigates, for which I paid $280, or more than thrice the

cost of my irrigation. But more: my hill-side, while it was well

grassed in Spring, always gave out directly after the first dry, or hot

week; so that, when I most needed feed, it afforded none; its herbage

being parched up and dead, and thus remaining till refreshed by generous

rains. I judge, therefore, that my irrigation has _more_ than doubled

the product of those two acres, and that these are likely to lose

nothing in yield or value so long as that petty irrigating ditch shall

be maintained.

I know this is small business. But suppose each of the hundred thousand

New-England farms, whereof five to ten acres might be thus irrigated at

a cost not exceeding $100 per farm, had been similarly prepared to flow

those acres last Spring and early Summer, with an average increase

therefrom of barely one tun of Hay (or its equivalent in pasturage) per

acre. The 500,000 tuns of Hay thus realized would have saved 200,000

head of cattle from being sent to the butcher while too thin for good

beef, while every one of them was required for further use, and will

have to be replaced at a heavy cost. Shall not these things be

considered? Shall not all who can do so at moderate cost resolve to test

on their own farms the advantages and benefits that may be secured by

Irrigation?

XIII.

THE POSSIBILITIES OF IRRIGATION.

I have given an account of my poor, little experiment in Irrigation,

because it is one which almost every farmer can imitate and improve

upon, however narrow his domain and slender his fortune. I presume there

are Half a Million homesteads in the United States which have natural

facilities for Irrigation at least equal to mine; many of them far

greater. Along either slope of the Alleghenies, throughout a district at

least a thousand miles long by three hundred wide, nearly every farm

might be at least partially irrigated by means of a dam costing from

twenty-five to one hundred dollars; so might at least half the farms in

New-England and our own State. On the prairies, the plans must be

different, and the expense probably greater, but the results obtained

would bounteously reward the outlay. I shall not see the day, but there

are those now living who _will_ see it, when Artesian wells will be dug

at points where many acres may be flowed from a gentle swell in the

midst of a vast plain, or at the head of a fertile valley, expressly, or

at least mainly, that its waters may be led across that plain, adown

that valley, in irrigating streams and ditches, until they have been

wholly drank up by the soil. I have seen single wells in California that

might be made to irrigate sufficiently hundreds of acres, by the aid of

a reservoir into which their waters could be discharged when the soil

did not require them, and there retained until the thirsty earth

demanded them.

An old and successful farmer in my neighborhood affirms that Water is

the cheapest and best fertilizer ever applied to the soil. If this were

understood to mean that no other is needed or can be profitably applied,

it would be erroneous. Still, I think it clearly true that the annual

product of most farms can be increased, and the danger of failure

averted, more cheaply by the skillful application of water than by that

of any other fertilizer whatever, Plaster (Gypsum) possibly excepted.

I took a run through Virginia last Summer, not far from the 1st of

August. That State was then suffering intensely from drouth, as she

continued to do for some weeks thereafter. I am quite sure that I saw on

her thirsty plains and hillsides not less than three hundred thousand

acres planted with Indian Corn, whereof the average product could not

exceed ten bushels per acre, while most of it would fall far below that

yield, and there were thousands of acres that would not produce one

sound ear! Every one deplored the failure, correctly attributing it to

the prevailing drouth. And yet, I passed hundreds if not thousands of

places where a very moderate outlay would have sufficed to dam a stream

or brooklet issuing from between two spurs of the Blue Ridge, or the

Alleghenies, so that a refreshing current of the copious and fertilizing

floods of Winter and Spring, warmed by the fervid suns of June and July,

could have been led over broad fields lying below, so as to vanquish

drouth and insure generous harvests. Nay; I feel confident that I could

in many places have constructed rude works in a week, after that drouth

began to be felt, that would have saved and made the Corn on at least a

portion of the planted acres through which the now shrunken brooks

danced and laughed idly down to the larger streams in the wider and

equally thirsty valleys. Of course, I know that this would have been

imperfect irrigation--a mere stop-gap--that the cold spring-water of a

parched Summer cannot fertilize as the hill-wash of Winter and Spring,

if thriftily garnered and warmed through and through for sultry weeks,

would do; yet I believe that very many farmers might, even then, have

secured partial crops by such irrigation as was still possible, had

they, even at the eleventh hour, done their best to retrieve the errors

of the past.

For the present, I would only counsel every farmer to give his land a

careful scrutiny with a view to irrigation in the future. No one is

obliged to do any faster than his means will justify; and yet it may be

well to have a clear comprehension of all that may ultimately be done to

profit, even though much of it must long remain unattempted. In many

cases, a stream may be dammed for the power which it will afford for two

or three months of each year, if it shall appear that this use is quite

consistent with its employment to irrigation, when the former alone

would not justify the requisite outlay. It is by thus making one expense

subserve two quite independent but not inconsistent purposes that

success is attained in other pursuits; and so it may be in farming.

As yet, each farmer must study his own resources with intent to make the

most of them. If a manageable stream crosses or issues from his land, he

must measure its fall thereon, study the lay of the land, and determine

whether he can or cannot, at a tolerable cost, make that stream

available in the irrigation of at least a portion of his growing crops

when they shall need water and the skies decline to supply it. On many,

I think on most, farms situated among hills, or upon the slopes of

mountains, something may be done in this way--done at once, and with

immediate profit. But this is rudimentary, partial, fragmentary, when

compared with the irrigation which yet shall be. I am confident that

there are points on the Carson, the Humboldt, the Weber, the South

Platte, the Cache-le-Poudre, and many less noted streams which thrid the

central plateau of our continent, where an expenditure of $10,000 to

$50,000 may be judiciously made in a dam, locks and canals, for the

purposes of irrigation and milling combined, with a moral certainty of

realizing fifty per cent. annually on the outlay, with a steady

increase in the value of the property. If my eye did not deceive me,

there is one point on the Carson where a dam that need not cost $50,000

would irrigate one hundred square miles of rich plain which, when I saw

it eleven years ago, grew nought but the worthless shrubs of the desert,

simply because nothing else could endure the intense, abiding drouth of

each Nevada Summer. Such palpable invitations to thrift cannot remain

forever unimproved.

In regions like this, where Summer rains are the rule rather than the

exception, the need of irrigation is not so palpable, since we do or may

secure decent average crops in its absence. Yet there is no farm in our

country that would not yield considerably more grain and more grass,

more fruit and more vegetables, if its owner had water at command which

he could apply at pleasure and to any extent he should deem requisite.

Most men, thus empowered, would at first irrigate too often and too

copiously; but experience would soon temper their zeal, and teach them

"The precious art of Not too much;"

and they would thenceforth be careful to give their soil drink yet, not

drown it.

* * * * *

Whoever lives beyond the close of this century, and shall then traverse

our prairie States, will see them whitened at intervals by the broad

sails of windmills erected over wells, whence every gale or breeze will

be employed in pumping water into the ponds or reservoirs so located

that water may be drawn therefrom at will and diffused in gentle

streamlets over the surrounding fields to invigorate and impel their

growing crops. And, when all has been done that this paper faintly

foreshadows, our people will have barely indicated, not by any means

exhausted, the beneficent possibilities of irrigation.

The difficulty is in making a beginning. Too many farmers would fain

conceal a poverty of thought behind an affectation of dislike or

contempt for novelties. "Humbug!" is their stereotyped comment on every

suggestion that they might wisely and profitably do something otherwise

than as their grandfathers did. They assume that those respected

ancestors did very well without Irrigation; wherefore, it cannot now be

essential. But the circumstances have materially changed. The

disappearance of the dense, high woods that formerly almost or quite

surrounded each farm has given a sweep to the heated, parching winds of

Summer, to which our ancestors were strangers. Our springs, our streams,

do not hold out as they once did. Our Summer drouths are longer and

fiercer. Even though our grandfathers did not, we _do_ need and may

profit by Irrigation.

XIV.

PLOWING--DEEP OR SHALLOW.

Rules absolutely without exception are rare; and they who imagine that I

insist on plowing all lands deeply are wrong for I hold that much land

should never be plowed at all. In fact, I have seen in my life nearly as

large an area that ought not as I have that ought to be plowed, by which

I mean that half the land I have seen may serve mankind better if

devoted to timber than if subjected to tillage. I personally know

farmers who would thrive far better if they tilled but half the area

they do, bestowing on this all the labor and fertilizers they spread

over the whole, even though they threw the residue into common and left

it there. I judge that a majority of our farmers could increase the

recompense of their toil by cultivating fewer acres than they now do.

Nor do I deny that there are soils which it is not advisable to plow

deeply. Prof. Mapes told me he had seen a tract in West Jersey whereof

the soil was but eight inches deep, resting on a stratum of copperas

(sulphate of iron,) which, being upturned by the plow and mingled with

the soil, poisoned the crops planted thereon. And I saw, last Summer,

on the intervale of New River, in the western part of Old Virginia, many

acres of Corn which were thrifty and luxuriant in spite of shallow

plowing and intense drouth, because the rich, black loam which had there

been deposited by semi-annual inundations, until its depth ranged from

two to twenty feet, was so inviting and permeable that the corn-roots

ran _below_ the bottom of the furrow about as readily as above that

line. I do not doubt that there are many millions of acres of such land

that would produce tolerably, and sometimes bounteously, though simply

scratched over by a brush harrow and never plowed at all. In the infancy

of our race, when there were few mouths to fill and when farming

implements were very rude and ineffective, cultivation was all but

confined to these facile strips and patches, so that the utility, the

need, of deep tillage was not apparent. And yet, we know the crops often

failed utterly in those days, plunging whole nations into the miseries

of famine.

The primitive plow was a forked stick or tree-top, whereof one prong

formed the coulter, the other and longer the beam; and he who first

sharpened the coulter-prong with a stone hatchet was the Whitney or

McCormick of his day. The plow in common use to-day in Spain or Turkey

is an improvement on this, for it has an iron point; still, it is a

miserable tool. When, at five years old, I first rode the horse which

drew my father's plow in furrowing for or cultivating his corn, it had

an iron coulter and an iron share; but it was mainly composed of wood.

In the hard, rocky soil of New-Hampshire, as full of bowlders and

pebbles as a Christmas pudding is of plums, plowing with such an

implement was a sorry business at best. My father hitched eight oxen and

a horse to his plow when he broke up pebbly green-sward, and found an

acre of it a very long day's work. I hardly need add that subsoiling was

out of the question, and that six inches was the average depth of his

furrow.

I judge that the best Steel Plows now in use do twice the execution that

his did with a like expenditure of power--that we can, with equal power,

plow twelve inches as easily and rapidly as he plowed six. Ought we to

do it? Will it pay?

I first farmed for myself in 1845 on a plat of eight acres, in what was

then the open country skirting the East River nearly abreast the lower

point of Blackwell's Island, near Fiftieth-st., on a little indentation

of the shore known as Turtle Bay. None of the Avenues east of Third was

then opened above Thirtieth-st.; and the neighborhood, though now

perforated by streets and covered with houses, was as rural and secluded

as heart could wish. One fine Spring morning, a neighbor called and

offered to plow for $5 my acre of tillage not cut up by rows of box and

other shrubs; and I told him to go ahead. I came home next evening, just

as he was finishing the job, which I contemplated most ruefully. His

plow was a pocket edition; his team a single horse; his furrows at most

five inches deep. I paid him, but told him plainly that I would have

preferred to give the money for nothing. He insisted that he had plowed

for me as he plowed for others all around me. "I will tell you," I

rejoined, "exactly how this will work. Throughout the Spring and early

Summer, we shall have frequent rains and moderate heat: thus far, my

crops will do well. But then will come hot weeks, with little or no

rain; and they will dry up this shallow soil and every thing planted

thereon."

The result signally justified my prediction. We had frequent rains and

cloudy, mild weather, till the 1st of July, when the clouds vanished,

the sun came out intensely hot, and we had scarcely a sprinkle till the

1st of September, by which time my Corn and Potatoes had about given up

the ghost. Like the seed which fell on stony ground in the Parable of

the Sower, that which I had planted had withered away "because there was

no root;" and my prospect for a harvest was utterly blighted, where,

with twelve inches of loose, fertile, well pulverized earth at their

roots, my crops would have been at least respectable. When I became once

more a farmer in a small way on my present place, I had not forgotten

the lesson, and I tried to have plowed deeply and thoroughly so much

land as I had plowed at all. My first Summer here (1853) was a very dry

one, and crops failed in consequence around me and all over the country;

yet mine were at least fair; and I was largely indebted for them to

relatively deep plowing. I have since suffered from frost (on my low

land), from the rotting of seed in the ground, from the ravages of

insects, etc.; but never by drouth; and I am entirely confident that

Deep Plowing has done me excellent service. My only trouble has been to

get it done; for there are apt to be reasons?--(haste, lateness in the

season, etc.)--for plowing shallowly for "just this time," with full

intent to do henceforth better.

* * * * *

I close this paper with a statement made to me by an intelligent British

farmer living at Maidstone, south of England. He said:

"A few years ago there came into my hands a field of twelve acres, which

had been an orchard; but the trees were hopelessly in their dotage. They

must be cut down; then their roots must be grubbed out; so I resolved to

make a clean job of it, and give the field a thorough trenching.

Choosing a time in Autumn or early Winter when labor was abundant and

cheap, I had it turned over three spits (27 inches) deep; the lowest

being merely reversed; the next reversed and placed at the top; the

surface being reversed and placed below the second. The soil was strong

and deep, as that of an orchard should be; I planted the field to Garden

Peas, and my first picking was very abundant. About the time that peas

usually begin to wither and die, the roots of mine struck the rich soil

which had been the first stratum, but was now the second, and at once

the stalks evinced a new life--threw out new blossoms, which were

followed by pods; and so kept on blossoming and forming peas for weeks,

until this first crop far more than paid the cost of trenching and

cultivation."

Thus far my English friend. Who will this year try a patch of Peas on a

plat made rich and mellow for a depth of at least two feet, and

frequently moistened in Summer by some rude kind of irrigation?

The fierceness of our Summer suns, when not counteracted by frequent

showers, shortens deplorably the productiveness of many Vegetables and

Berries. Our Strawberries bear well, but too briefly; our Peas wither up

and cease to blossom after they have been two or three weeks plump

enough to pick. Our Raspberries, Blackberries, etc., fruit well, but are

out of bearing too soon after they begin to yield their treasures. I am

confident that this need not be. With a deep, rich soil, kept moistened

by a periodical flow of water, there need not and should not be any such

haste to give over blooming and bearing. The fruit is Nature's

attestation of the geniality of the season, the richness and abundance

of the elements inhering in the soil or supplied to it by the water.

Double the supply of these, and sterility should be postponed to a far

later day than that in which it is now inaugurated.

XV.

PLOWING--GOOD AND BAD.

There are so many wrong ways to do a thing to but one right one that

there is no reason in the impatience too often evinced with those who

contrive to swallow the truth wrong end foremost, and thereupon insist

that it won't do. For instance: A farmer hears something said of deep

plowing, and, without any clear understanding of or firm faith in it,

resolves to give it a trial. So he buys a great plow, makes up a strong

team, and proceeds to turn up a field hitherto plowed but six inches to

a depth of a foot: in other words, to bury its soil under six inches of

cold, sterile clay, sand, or gravel. On this, he plants or sows grain,

and is lucky indeed if he realizes half a crop. Hereupon, he reports to

his neighbors that Deep Plowing is a humbug, as he suspected all along;

but now he knows, for he has tried it. There are several other wrong

ways, which I will hurry over, in order to set forth that which I regard

as the right one.

What I know of farming: a series of brief and plain expositions of practical agriculture as an art based upon science · 第 4 / 21 段