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قراءة كتاب Asparagus, its culture for home use and for market A practical treatise on the planting, cultivation, harvesting, marketing, and preserving of asparagus, with notes on its history
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Asparagus, its culture for home use and for market A practical treatise on the planting, cultivation, harvesting, marketing, and preserving of asparagus, with notes on its history
and rejected when planting the permanent bed.
Donald's Elmira.—Originated by A. Donald, Elmira, N. Y., and was first introduced by Johnson & Stokes, Philadelphia, Pa. This is characterized by the delicate green color of its stems, different from any other kind. Its stalks are very tender and succulent, while its size is all that can be desired.
Eclipse (Dreer's Eclipse).—A light green mammoth strain of excellent quality and attractive appearance. The stalks, not rarely, measure two inches in diameter, and even when twelve to fifteen inches long are perfectly tender and of a delicate light green color.
Hub.—Originated in New Hampshire several years ago, and was introduced by Joseph Breck & Sons, Boston, Mass. Although not generally catalogued, it is a distinct and valuable variety that has made a decided record for itself in the tests of the Kansas Experiment Station, where its yield, by weight, was greater than any other.
Mammoth.—This is a somewhat indefinite term, as almost any prominent seedsman and grower who has a particularly good and large strain of asparagus suffixes it to his own name. Among the best known of these are Vick's Mammoth, Maule's Mammoth, Prescott's Mammoth, etc.
Moore's Cross-bred.—This originated with J. B. Moore, who for twenty years was awarded the first prize on asparagus at the exhibitions of the Massachusetts Horticultural Society, at one of which the weight of twelve stalks was 4 pounds 6-1/4 ounces. It retains the head close until the stalks are quite long, and is of uniform color, while for tenderness and eating quality it is excelled by none. It is particularly recommended for cultivation in New England.
Palmetto.—A variety of Southern origin, but suitable for the North also. At the South it is somewhat earlier than Conover's Colossal, but its great advantage is that it is almost destitute of, what dealers call, culls, nearly all shoots being of a uniform and large size. The bunch from which the engraving (Fig. 12) was made measured twenty-two inches in circumference, and contained forty-eight stalks of nine inches in length and remarkably uniform in size. It was taken on March 30th from a field of fifty acres, near Charleston, S. C. But the greatest point in its favor is its comparative security from the attacks of rust.
Purple Top and Green Top.—These were the only distinct sorts in cultivation before the introduction of Conover's Colossal, but are now almost unknown to the trade and cultivators.
EUROPEAN VARIETIES
The named varieties of asparagus of European origin are very numerous, as almost every locality in which asparagus is cultivated extensively and successfully has given its name to a strain more or less distinct. Generally these varieties differ only in a single characteristic, and these differences, for the most part, are so little that they are lost when grown under different climatic and soil conditions. The best-informed authorities recognize three cultivated varieties, which have distinct commercial characteristics and whose seeds reproduce them in the seedlings.
German Giant.—This variety embraces most of the German and French sorts—the Giant Dutch Purple, Ulm Giant, Giant Brunswick, Large Erfurt, Early Darmstadt, and many others.
Argenteuil.—Of this three sub-varieties are recognized—the early, intermediate, and late; and these are the kinds grown almost exclusively in the vicinity of Paris, France, where its culture and improvement have steadily developed for centuries. Under good culture the late Argenteuil produces stalks from three to six inches in circumference, at eight inches below the tips.
Yellow Burgundy.—The distinctive characteristic of this variety is that the young shoots below the surface of the soil are light yellow instead of white to tips, being greenish-yellow. It is also claimed to be more rust-resisting than other European sorts.
VARIETY TESTS
To determine the comparative effects of manuring on different varieties of asparagus, and also their comparative earliness, Prof. S. C. Mason and his assistant, W. L. Hall, of the Kansas Experiment Station, have made some interesting and instructive experiments, the results of which are given in Bulletin 70, as follows:
"The seed of ten varieties of asparagus was planted. A good stand was secured, and the young plants were cultivated during the summer in the usual way. Early the following spring the entire patch was dug up and the roots heeled in. The same ground was then prepared for a permanent plantation, by plowing it deeply and marking it with furrows four feet apart. These furrows were made as deep as possible, but after the loose soil had run back into them they were on the bottom hardly six inches below the level of the ground. In these furrows the roots of the seedlings were planted (240 feet of row for each variety), making altogether a patch of 35.25 square rods, or a little more than one-fifth of an acre (.22 of an acre). The plants were set about a foot apart in the row, and covered only an inch or two above the crown, leaving along the rows depressions some two inches deep, which were gradually filled up during the summer, by the many cultivations. During the winter the stalks were cleared off, but nothing was done with the patch in the spring more than to cut and note the earliest shoots, the first cutting of which was made April 13th. The patch was cultivated during summer as before, except that the size of the plants interfered somewhat—many of the plants growing six feet high and correspondingly broad. During the fall the north half of each variety was manured, at the rate of fifty loads per acre, with strong barnyard manure, and in the spring the effect was noted.
"The following table gives results as shown by the records of ten cuttings made the spring of 1897, from April 20th to May 19th, inclusive; varieties averaged in order of yield:
VARIETIES | YIELDS IN POUNDS | ||
---|---|---|---|
240 feet of row in each, one-half manured and one-half unmanured |
Manured | Unmanured | Total |
1 Hub | 31 | 27 | 58 |
2 Donald's Elmira | 29 | 29 | 58 |
3 Vick's New Mammoth | 26 | 20 | 47 |
4 Palmetto | 20 | 18 | 39 |
5 Moore's Cross-bred | 19 | 15 | 35 |
6 Conover's Colossal | 16 | 17 | 33 |
7 Barr's Philadelphia Mammoth | 17 | 16 | 33 |
8 Columbian Mammoth White | 18 | 13 | 32 |
9 Dreer's Eclipse | 16 | 14 | 30 |
10 Giant Purple Top | 15 | 14 | 29 |
Totals | 207 | 183 | 394 |