
In market gardening the soil is always made... Consequently, it is now a usual stipulation in the renting contracts of the Paris maraîcheres that the gardener may carry away his soil, down to a certain depth, when he quits his tenancy. He himself makes it, and when he moves to another plot he carts his soil away...
Let us take, for example, the orchard—the marais—of M. Ponce, the author of a well known work on the culture maraîchere.., covered only two and seven-tenths acres. The outlay for his establishment, including a steam engine for watering... reached £1,136. ...When returning from Paris they brought in manure, for which £100 was spent every year. Another £100 was spent on rent and taxes. But how to enumerate all that was gathered every year... More than 20,000 pounds of carrots... 20,000 pounds of onions, radishes and other vegetables... 6,000 heads of cabbage; 3,000 of cauliflower; 5,000 baskets of tomatoes, 5,000 dozen of choice fruit; and 154,000 heads of salad; in short, a total of 250,000 pounds of vegetables. The soil was made to such an amount out of forcing beds that every year 250 cubic yards of loam had been sold. Similar examples could have been given by the dozen... No less than 2,125 acres are cultivated round Paris in that way by 5,000 persons, and thus not only the 2,000,000 Parisians are supplied with vegetables, but the surplus is also sent to London.
The above results are obtained with the help of warm frames, thousands of glass bells, and so on. But even without such costly things, with only 36 yards of frames for seedlings, vegetables are grown in the open air to the value of £200 per acre. ...In such cases the high selling prices of crops are not due to the high prices fetched by early vegetables in winter; they are entirely due to the high crops of the plainest ones.
All this wonderful culture has entirely developed in the second half of the nineteenth century. Before that, it was quite primitive. But now the Paris gardener not only defies the soil—he would grow the same crops on an ashphalt pavement—he defies the climate. His walls, which are built to reflect light and to protect the wall-trees from the northern winds, his wall-tree shades and glass protectors, his frames and pépinières have made a real garden, a rich Southern garden, out of the suburbs of Paris. He has given to Paris the 'two degrees less of latitude' after which a French scientific writer was longing; he supplies his city with mountains of grapes and fruit at any season; and in the early spring he inundates and perfumes it with flowers. But he does not only grow articles of luxury. The culture of plain vegetables on a large scale is spreading every year; and the results are so good that there are now practical maraîchers who venture to maintain that if all the food, animal and vegetable, necessary for 4,500,000 inhabitants of the departments of Seine and had to be grown in their own territory (3,520 square miles), it could be grown without resorting to any other methods of culture than those already in use—methods already tested on a large scale and proved to be successful.
If we put aside those gardeners who chiefly cultivate the... primeurs—strawberries ripened in January, and the like—if we take only those who grow crops in the open field, and resort to frames exclusively for the earlier days of the life of the plant and if we analyse their system, we see that its very essence is first, to create for the plant a nutritive and porous soil, which contains both the necessary decaying organic matter and the inorganic compounds; and then to keep that soil and the surrounding atmosphere at a temperature and moisture superior to those of the open air. The whole system is summed up in these few words. If the French maraîcher spends prodigies of labour, intelligence, and imagination in combining different kinds of manure so as to make them ferment at a given speed, he does so for no purpose but the above: a nourishing soil and a desired equal temperature of the air and the soil. All of his empirical art is devoted to the achievement of these two aims. But... the soil can be improved by hand, but it need not be made by hand. Any soil... can be made by machinery. ...We shall see manufactures of as soon as there is a demand for them.
At present, when fraud and adulteration are exercised on such an immense scale in the manufacture of artificial manure, and the manufacture of manure is considered as a chemical process, when it ought to be considered as a physiological one, the gardener prefers to spend an unimaginable amount of labour rather than risk his crop by the use of a pompously labelled and unworthy drug. But it is a social obstacle which depends upon a want of knowledge and a bad social organisation, not upon physical causes.
Let us not overrate the productivity of the exporting countries, and let us remember that the vinegrowers of Southern Europe drink themselves an abominable piquette; that s fabricates wine for home use out of dry raisins bought from Asia; and that the peasant who sends his apples to London, drinks real cider only on great festivities. Such a state of things will not last for ever; and the day is not far when we shall be compelled to look to our own resources for many of the things which we now import. And we shall not be the worse for that.
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