The $100 Prize Essay on the Cultivation of the Potato; and How to Cook the Potato.

by D. H. Compton and Pierre Blot.

In the fall of 1868, I offered $100 as a prize for the best Essay on the Cultivation of the Potato, under conditions then published; the prize to be awarded by a committee composed of the following gentlemen, well known in agricultural circles:

Colonel MASON C. WELD, a.s.sociate Editor of _American Agriculturist_.

A. S. FULLER, ESQ., of Ridgewood, N. J., the popular author of several horticultural works, and a.s.sociate Editor of the _Hearth and Home_.

Dr. F. M. HEXAMER, who has made the cultivation of the potato a special study.

In the month of January, 1870, the committee awarded the prize to D. A.

Compton; and this Essay is herewith submitted to the public in the hope of stimulating a more intelligent and successful cultivation of the Potato.

BELLEFONTE, PA., January, 1870.

W. T. WYLIE.

OFFICE OF THE AMERICAN AGRICULTURIST, NEW-YORK, January, 1870.

REV. W. T. WYLIE: DEAR SIR: The essays submitted to us by Mr.

Bliss, according to your announcement, numbered about twenty.

Several could not be called essays from their brevity, and others were exceedingly incomplete. About twelve, however, required and were worthy of careful consideration. That of Mr. D. A. Compton, of Hawley, Wayne County, Pa., was, in the opinion of your committee, decidedly superior to the others as a practical treatise, sure to be of use to potato-growers in every part of the country, and well worthy the liberal prize offered by yourself.

In behalf of the committee, sincerely yours, MASON C. WELD, _Chairman_.

POTATO CULTURE.

BY D. A. COMPTON, HAWLEY, PENNSYLVANIA.

The design of this little treatise is to present, with minuteness of detail, that mode of culture which experience and observation have proved to be best adapted to the production of the Potato crop.

It is written by one who himself holds the plow, and who has, since his early youth, been engaged in agriculture in its various branches, to the exclusion of other pursuits.

The statements which appear in the following pages are based upon actual personal experience, and are the results of many experiments made to test as many theories.

Throughout the Northern States of our country the potato is the third of the three staple articles of food. It is held in such universal esteem as to be regarded as nearly indispensable. This fact is sufficient to render a thorough knowledge of the best varieties for use, the character of soil best adapted to their growth, their cultivation and after-care, matters of the highest importance to the farmers of the United States.

The main object of this essay is so to instruct the novice in potato-growing that he may be enabled to go to work understandingly and produce the potato in its highest perfection, and realize from his labors bestowed on the crop the greatest possible profits.

SOIL REQUIRED--ITS PREPARATION.

The potato is most profitably grown in a warm, dry, sandy, or gravelly loam, well filled with decayed vegetable matters. The famous potato lands of Lake County, Ohio, from which such vast quant.i.ties of potatoes are shipped yearly, are yellow sand. This potato district is confined to ridges running parallel with Lake Erie, which, according to geological indications, have each at different periods defined its boundaries. This sand owes much of its potato-growing qualities to the sedimentary deposit of the lake and to manural properties furnished by the decomposition of the sh.e.l.ls of water-snails, sh.e.l.l-fish, etc., that inhabited the waters.

New lands, or lands recently denuded of the forest, if sufficiently dry, produce tubers of the most excellent quality. Grown on dry, new land, the potato always cooks dry and mealy, and possesses an agreeable flavor and aroma, not to be attained in older soils. In no argillaceous soil can the potato be grown to perfection as regards quality. Large crops on such soil may be obtained in favorable seasons, but the tubers are invariably coa.r.s.e-fleshed and ill-flavored. To produce roots of the best quality, the ground must be dry, deep, and porous; and it should be remembered that, to obtain very large crops, it is almost impossible to get too much humus in the soil. Humus is usually added to arable land either by plowing under green crops, such as clover, buckwheat, peas, etc., or by drawing and working in muck obtained from swamps and low places.

The muck should be drawn to the field in fall or winter, and exposed in small heaps to the action of frost. In the following spring, sufficient lime should be mixed with it to neutralize the acid, (which is found in nearly all muck,) and the whole be spread evenly and worked into the surface with harrow or cultivator.

Leaves from the woods, buckwheat straw, bean, pea, and hop vines, etc., plowed under long enough before planting to allow them time to rot, are very beneficial. Sea-weed, when bountifully applied, and turned under early in the fall, has no superior as a manure for the potato. No stable or barn-yard manure should be applied to this crop. If such nitrogenous manure must be used on the soil, it is better to apply it to some other crop, to be followed the succeeding year by potatoes. The use of stable manure predisposes the tubers to rot; detracts very much from the desired flavor; besides, generally not more than one half as many bushels can be grown per acre as can be obtained by using manures of a different nature. Market gardeners, many of whom from necessity plant on the same ground year after year, often use fine old stable manure with profit. Usually they plant only the earlier varieties, crowd them with all possible speed, dig early, and sell large and little before they have time to rot, thus clearing the ground for later-growing vegetables.

Thus grown, potatoes are of inferior quality, and the yield is not always satisfactory. Flavor, however, is seldom thought of by the hungry denizens of our cities, in their eagerness to get a taste of something fresh.

Market gardeners will find great benefit from the use of wood-ashes, lime, and the phosphates. Sprinkle superphosphate in the hill at the rate of two hundred pounds per acre; mix it slightly in the soil with an iron rake or potato-hook, then plant the seed. Just before the last hoeing, sprinkle on and around the hill a large handful of wood-ashes, or an equal quant.i.ty of lime slacked in brine as strong as salt will make it.

But for the generality of farmers, those who grow only their own supply, or those who produce largely for market, no other method of preparing the soil is so good, so easy, and so cheap as the following; it requires time, but pays a big interest: Seed down the ground to clover with wheat or oats. As soon as the grain is off, sow one hundred and fifty pounds of plaster (gypsum) per acre, and keep off all stock. The next spring, when the clover has made a growth of two inches, sow the same quant.i.ty of plaster again. About the tenth of July, harrow down the clover, driving the same direction and on the same sized lands you wish to plow; then plow the clover neatly under about seven inches deep. Harrow down the same way it was plowed, and immediately sow and harrow in two bushels of buckwheat per acre. When it has grown two inches, sow plaster as before; and when the buckwheat has grown as large as it will, harrow down and plow under about five inches deep. This, when cross-plowed in the spring sufficiently deep to bring up the clover-sod, is potato ground _first-cla.s.s in all respects_.

It is hardly supposable that this mode of preparation of soil would meet with favor among all farmers. There is a parsimonious cla.s.s of cultivators who would consider it a downright loss of time, seed, and labor; but any one who will take the trouble to investigate, will find that these same parsimonious men never produced four hundred bushels of potatoes per acre; and that the few bushels of small tubers that they do dig from an acre, are produced at considerable loss. "Men do not gather grapes from thorns, nor figs from thistles."

To make potato-growing profitable in these times of high prices of land and labor, it is absolutely necessary that the soil be in every way fitted to meet any and all demands of the crop.

It is said that in the State of Maine, previous to the appearance of the potato disease, and before the soil had become exhausted by continued cropping, potatoes yielded an average of four hundred bushels per acre.

Now, every observer is aware that the present average yield of the same vegetable is much less than half what it was formerly. This great deterioration in yield can not be attributed to "running out" of varieties; for varieties are extant which have not yet pa.s.sed their prime. It can not be wholly due to disease; for disease does not occur in every season and in every place. True, we have more insects than formerly, but they can not be responsible for all the great falling off.

It is traceable mainly to poverty of the soil in certain ingredients imperatively needed by the crop for its best development, and to the pernicious effect of enriching with nitrogenous manures. Any one who will plant on suitably dry soil, enriched only with forest-leaves, sea-weeds, or by plowing under green crops until the whole soil to a proper depth is completely filled with vegetable matter, will find to his satisfaction that the potato can yet be grown in all its pristine vigor and productiveness.

To realize from potato-growing the greatest possible profits, (and profits are what we are all after,) the following conditions must be strictly adhered to: First, the ground chosen _must be dry_, either naturally or made so by thorough drainage; a gently sloping, deep, sandy or gravelly loam is preferable. Second, the land should be liberally enriched with humus by some of the means mentioned, if it is not already present in the soil in sufficient quant.i.ties, and the soil should be deeply and thoroughly plowed, rendering it light, porous, and pulverulent, that the air and moisture may easily penetrate to any desirable depth of it; and a proper quant.i.ty of either wood-ashes or lime, or both, mixed with common salt, should be harrowed into the surface before planting, or be applied on top of the hills immediately after planting. And, finally, the cultivation and after-care should be _prompt_, and given as soon as needed. Nothing is more conducive to failure, after the crop is properly planted, than failure in promptness in the cultivation and care required.

GENERAL REMARKS ON MANURING WITH GREEN CROPS.

Experience proves that no better method can be adopted to bring up lands partially exhausted, which are remote from cities, than plowing under green crops. By this plan the farmer can take lot after lot, and soon bring all up to a high state of fertility. True, he gathers no crop for one year, but the outlay is little; and if in the second year he gathers as much from one acre as he formerly did from three, he is still largely the gainer.

It costs no more to cultivate an acre of rich, productive land than an acre of poor, unproductive land; and the pleasure and profit of harvesting a crop that abundantly rewards the husbandman for his care and labor are so overwhelmingly in favor of rich land as to need no comment. Besides, manuring with green crops is not transitory in its effects; the land remembers the generous treatment for many years, and if at times lime or ashes be added to a.s.sist decomposition, will continue to yield remunerative crops long after land but once treated with stable manure or guano fails to produce any thing but weeds. The skinning process, the taking off of every thing grown on the soil and returning nothing to it, is ruinous alike to farm and farmer. Thousands of acres can be found in various parts of the country too poor to pay for cultivating without manuring. Of the capabilities of their lands under proper treatment the owners thereof have no idea whatever. Such men say they can not make enough manure on the farm and are too poor to buy. Why not, then, commence plowing under green crops, the only manure within easy reach? If fifty acres can not be turned under the first year, put at least one acre under, which will help feed the rest. Why be contented with thirty bushels of corn per acre, when eighty or one hundred may be had? Why raise eight or twelve bushels of wheat per acre, when forty may as well be had? Why cut but one half-ton of hay per acre, when the laws of nature allow at least three? Why spend precious time digging only one hundred bushels of potatoes per acre, when with proper care and culture three or four hundred may easily be obtained? And, finally, why toil and sweat, and have the poor dumb beasts toil and sweat, cultivating thirty acres for the amount of produce that should grow, may grow, can grow, and has grown on ten acres?

The poorest, most forsaken side-hills, cobble-hills, and knolls, if the sand or gravel be of moderate depth, underlaid by a subsoil rather retentive, by turning under green crops grow potatoes of the first quality. If land be so poor that clover will not take, as is sometimes the case, seed to clover with millet very early in the spring, and harrow in with the millet thirty bushels of wood-ashes, or two hundred pounds of guano per acre; then sow the clover-seed one peck per acre; brush it in.

If neither ashes nor guano can be obtained at a reasonable price, sow two hundred pounds of gypsum per acre as soon as the bushing is completed. This will not fail in giving the clover a fair foothold on the soil.

Before the millet blossoms, cut and cure it for hay. Keep all stock off the clover, plaster it the following spring, plow it under when in full bloom; sow buckwheat immediately; when up, sow plaster; when in full bloom, plow under and sow the ground immediately with rye, to be plowed under the next May. Thus three crops are put under within a year, the ground is left strong, light, porous, free from weeds, ready to grow a large crop of potatoes, or almost any thing else.

Much is gained every way by having and keeping land in a high state of fertility. Some crops require so long a season for growth, that high condition of soil is absolutely necessary to carry them through to maturity in time to escape autumnal frosts. In the Western States manure has. .h.i.therto been considered of but little value. The soil of these States was originally very rich in humus. For a time wheat was produced at the rate of forty bushels per acre; but according to the statistics given by the Agricultural Department at Washington, for the year 1866, the average yield in some of these States was but four and a half bushels per acre. It is evident from this that Mr. Skinflint has had things pretty much his own way. His land now produces four and a half bushels per acre; what time shall elapse when it shall be four and one half acres per bushel? Who dare predict that manure will not at some day be of value west of the Alleghanies? New-Jersey, with a soil naturally inferior to that of Illinois, contains extensive tracts that yearly yield over one hundred bushels of Indian corn per acre, while the average of the State is over forty-three; and the average yield of the same cereal in Illinois is but little over thirty-one bushels per acre.

In the Western States, where potatoes are grown extensively for Southern markets, the average yield is about eighty bushels per acre; while in old Pennsylvania could be shown the last year potatoes yielding at the rate of six hundred and forty bushels per acre. There are those who argue that manure is never necessary--that plant-food is supplied in abundance by the atmosphere; it was also once said a certain man had taught his horse to live without eating; but it so happened that just as he got the animal perfectly schooled, it died.

Good, thorough cultivation and aeration of the soil undoubtedly do much toward the production of crops; but mere manipulation is not all that is needed.

That growing plants draw much nourishment from the atmosphere, and appropriate largely of its const.i.tuents in building up their tissue, is certainly true; it is also certainly true that they require something of the soil besides mere anchorage. All facts go to show that if the const.i.tuents needed by the plant from the soil are not present in the soil, the efforts of the plant toward proper development are abortive?

What sane farmer expects to move a heavy load over a rugged road with a team so lean and poverty-stricken that they cast but a faint shadow? Yet is he much nearer sanity when he expects farming to be pleasant and profitable, and things to _move aright_, unless his land is strong and fat? Is he perfectly sane when he thinks he can skin his farm year after year, and not finally come to the bone? The farmer on exhausted land must of necessity use manure. Manure of _some_ kind must go under, or he must go under; and to the great ma.s.s of cultivators no mode of enriching is so feasible, so cheap, and attended with such satisfactory results, as that of plowing under green crops.

The old plan of leaving an exhausted farm, and going West in search of rich "government land," must soon be abandoned. Already the head of the column of land-hunters have "fetched up" against the Pacific, and it is doubtful whether their anxious gaze will discover any desirable unoccupied soil over its waters.

The writer would not be understood as saying that all farms are exhausted, or that there is _no_ way of recuperation but by plowing under green crops. What he wishes understood is, that where poor, sandy, or gravelly lands are found, which bring but small returns to the owner, by subjecting them to the process indicated, such lands bring good crops of the kind under consideration. And further, that land in the proper condition to yield a maximum crop of potatoes, is fitted to grow other crops equally well. Neither would the writer be understood as arguing that a crop of clover and one of buckwheat should be turned under for each crop of potatoes; where land is already in high condition, it may not be necessary. A second growth of clover plowed under in the fall for planting early kinds, and a clean clover sod turned in _flat_ furrows in the spring, for the late market varieties, answer very well. To turn flat furrows, take the furrow-slice wide enough to have it fall completely inside the preceding one.

Potatoes should not be planted year after year on the same ground; trouble with weeds and rapid deterioration of quality and quant.i.ty of tubers soon render the crop unprofitable. Loamy soil planted continuously soon becomes compact, heavy, and lifeless. Where of necessity potatoes must be grown yearly on the same soil, it is advisable to dig rather early, and bury the vines of each hill in the one last dug; then harrow level, and sow rye to be plowed under next planting time.