[5.—Vine-Culture of the Future.]
The cultivation of fruit and berries and horticulture will also attain a degree of development in the future that hitherto seemed almost impossible. To what extent the cultivation of fruit is still neglected in Germany, although the German climate is particularly favorable to the cultivation of orchards, especially apple-orchards, may be seen from the fact that more than 40 million marks’ worth of fresh fruit and more than 20 million marks’ worth of dried fruit are imported annually. One look at the poor condition of our fruit-trees in the greater part of Germany, even in countries like Wurtemberg, which are famed for their orchards, makes this easily understood. Here a wide field presents itself to agricultural and horticultural activity. The cultivation of berries is just begun and presents a no more favorable aspect.
By applying artificial heat and moisture in large, sheltered halls, it becomes possible to raise vegetables, fruit and berries in large quantities during any season of the year. The florists’ show-windows in our large cities present as gorgeous an array of flowers in mid-winter as they do in summer. Wonderful progress in the line of artificial cultivation of fruit, is marked by the artificial “vineyard” of Garden-Director Haupt, in Brieg in Silesia, which has since been imitated elsewhere, and already had been tried in other countries; for instance, in England. Its equipment and the results achieved were so enticingly described in the “Vossishe Gazette,” of September 27, 1890, that an extract of this description follows:
“The glass-house is situated upon an approximately square field of 500 square meters. It is from 4.5 to 5 meters high, and its walls face exactly north, south, east and west. It contains twelve rows of double fruit-walls, running from south to north, 1.8 meters apart, which at the same time serve as supports to the flat roof. In a bed 1.25 meters deep, resting on a bank of earth 25 centimeters strong, which contains a net of pipes for drainage and ventilation of the soil, a bed, whose heavy ground has been made loose and fertile by the introduction of chalk, rubbish, sand, manure, bone-dust and potash, Mr. Haupt planted 360 grapevines of the kinds that yield the best grape-juice in the Rhine Province: White and red Riessling and Traminer, white and blue Moscatelle and Burgundy.
“The ventilation of the place is effected by several apertures in the side walls and by slats 20 meters long attached to the roof, which can be opened and closed by a lever, and afford protection from the storm in any position. Twenty-six showers serve to water the vines. They are attached to rubber pipes 1.25 meters long that are suspended from a tank above. But Mr. Haupt has introduced still another truly ingenious contrivance for quickly and thoroughly watering his ‘wine-hall’ and his ‘vineyards’: an artificial generator of rain. Under the roof four long copper tubes are attached that contain fine perforations half a meter apart. Through these perforations fine streams of water are driven upward, strike small round sieves made of gauze, and, by being filtered through them, are scattered in fountains of a fine spray. It takes several hours to water the place thoroughly by means of the rubber tubes; but one need open only one faucet, and throughout the building a gentle, refreshing rain falls down evenly upon the vines, the ground and the granite walks. Without any artificial heating, only by the neutral qualities of the glass-house, the temperature can be raised from 8 to 10 degrees R. above the outside air. In order to protect the vines from their most dangerous and destructive enemy, the vine-louse, in case one should appear, it will suffice to close all the drain-pipes and open all the faucets. Thereby an inundation of the vines will be caused which, as is well known, this enemy cannot resist. The glass walls and roof protect the vineyard from storm, cold, frost and superfluous rain. A fine wire netting, spread over roof and walls, affords protection from hail. The artificial rain contrivance is a safeguard against drought. The wine-grower in such a vineyard makes his own weather and can mock the dangers of all the incalculable whims and treacheries of indifferent or cruel nature that threaten with ruin the fruit of the wine-grower’s toil and care.”
Mr. Haupt’s expectations were fully realized. The vines thrived splendidly in the even temperature. The grapes ripened to their fullest perfection, and in the fall of 1885 yielded a juice that was not inferior in richness and sweetness to any obtained along the Rhine. The grapes thrived equally well in the following year, and in that most unfavorable year, 1887. When the vines have attained their full height of five meters and bear an abundance of grapes to their very top, in this establishment about 20 hectoliters of wine can be produced annually, and the cost of wine per bottle to the producer will not exceed 40 “pfennige” (10 cents).
There is no reason why this new and most favorable system of vine-culture should not be introduced on a large scale. Glass-houses like this one, covering one-fifth of an acre, can without doubt also be erected on areas of one acre, or more, equipped with the same contrivances for ventilation, drainage and artificial rain. Here the vegetation will set in some weeks earlier than in the open air, and during the time of bloom the young vines will be protected from May-frosts, rain and cold; while the grapes ripen they will be protected from drought, from pilfering birds and thieves and excessive moisture; during the entire year they will be protected from the vine-louse, and the berries will remain safely on the vine until November or December. In an address delivered before the Society for the Advancement of Horticulture, in 1888, from which I have taken several technical terms in this description of Haupt’s “vineyard,” the inventor and founder of same closed with the following alluring perspective of the future: “Since this vine-culture can be carried on throughout Germany, also on otherwise barren, sandy or stony soil (as, for instance, in the March), after it has been made arable and watered, it becomes evident that vine-culture under glass becomes a matter of national interest. I would like to call this method the vine-culture of the future.” The author then described how the wine obtained form the grapes had met with the highest approval of experts, and added: “The vineyard also left sufficient room for the cultivation of other plants. Thus Mr. Haupt, between every two vines raises one rose-bush, which presents a wealth of bloom during April and May. On the eastern and western walls he also raises peaches, and during April their luxuriant blossoms must impart to this glass palace a fairy-like appearance.” Recently Belgium has bestowed special attention upon this method of fruit-culture. But in Germany also it is being extensively applied, for instance, in raising pineapples. Nothing will prevent the establishment of similar hot-house plantations for various kinds of plants, so that, with many products of the soil, we may enjoy the luxury of a double or threefold harvest. At present these undertakings are primarily a question of profit, and their products are enjoyed only by the favored few. But in Socialistic society the only question will be whether sufficient labor-power is obtainable. This being the case the task will be accomplished to the common advantage of all.
[6.—Measures to Prevent Exhaustion of the Soil.]
So we see that, even under present-day conditions, a thorough transformation in the methods of procuring food is taking place. But the utilization of all these discoveries is extremely slow, because powerful classes—the agrarians and their social and political supporters—are profoundly interested in suppressing them. Although in spring weekly prayers are offered up in all churches for a good crop, individual members of the congregations may feel like that pious man who implored his patron saint: “St. Florian, protect my house, set others on fire!” For if the crops turn out well in all countries the prices are lowered, and this possibility is dreaded by agrarians. What is advantageous to others is harmful to him, and therefore he is a silent opponent of every discovery or invention that benefits others besides himself. Our society dwells in constant discord with itself.
In order to maintain the soil in a fertile condition and to improve it, sufficient manure is essential. To obtain same will be an important task for the new society also.[245] Manure is to the fields what food is to man, and just as not every kind of food is equally nourishing to man, so not every kind of manure is of equal value to the soil. The ground must be given exactly the same chemical substances that have been withdrawn from it by the reaping of a crop, and such chemical substances, as are required for the cultivation of a certain kind of plant, must be introduced in large quantities. Therefore the study of chemistry and its practical application will develop to an extent unknown to-day.