SWEET CORN.
There is no money crop more available to the farm gardener than sweet corn. It will grow anywhere, and the young ears are always in demand. Any sod land plowed shallow will yield a crop of sweet corn. It is easy in this latitude to have an unbroken succession of marketable ears from July 1st to October 1st, or even somewhat earlier and later.
Shallow plowing and the use of a little fertilizer or compost in the hills will put the ground in order. A complete fertilizer is best. A compost containing hen manure is excellent.
Planting.—Eight or ten quarts of seed are required to plant an acre of corn in hills, allowing for replanting of what is injured by grubs or other causes. The larger varieties should be planted 4 feet by 3; the rows 4 feet apart and the hills 3 feet apart, with not more than three stalks in a hill. The smaller varieties may be grown much closer—3 feet by 2. Any method may be used in laying out a corn field that will give each stalk (of the large kinds) the equivalent of 4 square feet of ground space. The dwarf sweet corns demand about half that space.
Varieties.—The sweet corns require from sixty to eighty days to produce ears fit for boiling. The earliest varieties are small, and are lacking in sweetness as compared to the best intermediate types. Still, the early prices are so much better than midsummer prices, that the early varieties will always be grown for market. Indeed, the best profits of the business are from the extra early and extra late sales.
Sweet corn should not be grown by shippers who are distant more than twenty-four hours from market, as the ears lose quality and flavor soon after being pulled from the stalks. Forty-eight hours from market is an extreme distance, but is feasible if the ears can be chilled in a cold storage house previous to shipment; otherwise, they will heat and spoil. Even when designed for a near-by market a load of sweet corn ears may heat and spoil during a single night. It is best to scatter them upon the grass, if pulled during the afternoon for shipment the following morning.
The most profit to the grower will be found in ears which are not too large, as corn is often sold by the dozen, the large sorts being too weighty.
The early kinds, though small, can be planted closely, and a large number of ears secured; and they are out of the way so soon that the ground can be used for celery or other late crop. Celery can be set out between the rows of corn, and thus be shaded to some extent during the critical period following transplanting.
The Evergreens, Early and Late, and the shoe-peg types, such as Country Gentleman and Zig Zag Evergreen, are among the sweetest of all. The grains are of irregular shape and arrangement, and the appearance of the ears is not altogether prepossessing. When once known, however, they are in demand by consumers.
The red-cob corns should be cooked by dropping into boiling water. If cooked slowly, the red color of the cob affects the appearance of the grains.
Sweet Corn.—For first early, we recommend Burlington Hybrid and Mammoth White Cory. The former closely resembles a true sugar corn in appearance. For second early, Early Champion and New Early Evergreen; for late, original Stowell's Evergreen, Country Gentleman, Zig Zag Evergreen. See "Johnson & Stokes' Garden and Farm Manual" for descriptions of varieties.
Cultivation, Enemies, etc.—Shallow culture, frequently repeated, is demanded by sweet corn. The growth at first is timid and slow; afterward, if well cultivated, the stalks grow with great rapidity and vigor.
New Early Evergreen Sweet Corn.
To make the most of the stalks, they should be cut as soon as possible after the last ears have gone to market and fed to stock. Sweet corn stalks when dry make excellent fodder.
The main enemies of corn are the cut worm, which is only troublesome in spring; a fungus which attacks the ears and which is always most prevalent on the small, early sorts; and a worm which cuts and injures the grain while the corn is in milk. Crows sometimes pull up the seeds, but can be disposed of by scattering a little yellow corn on the surface of the ground around the edges of the field. As the crow destroys many cut worms, it is better to feed him with corn than to shoot him.
The prevalence of fungus-troubled or smutty corn is probably a symptom of weakness, the result of planting too early, or of too much wet weather. All plants that are weak are liable to fungus attacks, and it is the early corn that suffers most. This corn is often planted before the ground is sufficiently warm, and there is a consequent weakness of growth. Indian corn, at Philadelphia, should not be planted before May 10th, and yet it is not uncommon to see gardeners planting sweet corn two weeks earlier. They say they are "going to risk it." The result may be a good crop of corn, or it may be a crop of worms and fungus. Of course, the high price of the first corn in market is the excuse for the unseasonable date of planting. But it is not quite fair to blame the seed or the variety of corn for what is partly the result of the gardener's impatience. All traces of smut on corn stalks should be burned, and not allowed to be fed to cattle.
The Corn Worm.—Far more destructive and disastrous than smut is the corn worm (Heliothis armiger). This is the cotton worm of the South, there called boll worm. It is also sometimes called the tomato worm. It is the larva of a day-flying moth.
The difficulty in dealing with it is that when in the corn ear it is out of the reach of poisonous applications of any kind. Its depredations are extensive, especially in early corn. It prefers corn to all other foods, and cotton planters protect their crops by planting early corn in the cotton fields and then destroying the corn and the worms within the ears.
The best remedy at the North is to feed all wormy ears to pigs; and to plow the corn land in autumn, when the insects are in the pupa or chrysalis state. If turned up by the plow, it is believed that they mostly perish. The worms are said to be cannibals, eating each other to a great extent.
This worm is, perhaps, the greatest enemy with which the grower of sweet corn has to contend. The plan of feeding wormy ears to pigs offers the double advantage of destroying the enclosed pests, while at the same time fattening the pigs.
Successional Planting.—The skillful farmer will arrange successional plantings of corn, beginning (at Philadelphia) May 10th and ending about July 10th. The first and last plantings should be of the early sorts; the intermediate plantings of the full-sized varieties.
Profits.—Profits depend on location. The size of the crop should approximate 1,000 dozens of ears per acre, and the gross receipts should be $100 to $200 per acre, more or less, above the value of the fodder.
Suckering.—Time is often spent in pulling the suckers from the stalks of sweet corn. Such time is wasted. If the suckers are let alone they will not reduce the number or quality of the marketable ears.