Forcing

The forcing of asparagus in various methods has been practiced for centuries, and is rapidly developing into an important industry. The forcing may be done in any place where a temperature of 50 deg. to 60 deg. can be secured, in the greenhouse,



hotbed, pit, cellar, or in the garden and field. Whichever plan is pursued, the management of the plants to be forced is the same. The roots should not be less than three years old, and, if obtainable, four or five-year-old plants are to be preferred. These may be dug up from ordinary out-of-door plantations, or, if the forcing is to be done on a large scale and as a permanent industry, the plants have to be grown from seed for this special purpose. To keep up a continuous succession new sowings have to be made every year. The sowing of the seed and the management of the plants during the first year is the same as described in Chapter V. The following year, as early as the season permits, the one-year-old seedlings are planted out in rows, to develop as much strength as possible. As the plants are to remain only two years in the nursery bed, they may be placed closer than in a permanent plantation. A distance of two and one-half feet between the rows and one foot in the rows is, however, the narrowest limit, and, where enough ground is available, three by one and one-half or two feet would be still better. By purchasing one-year-old plants a year's time may be gained, but otherwise there are decided advantages in raising one's own plants. During the following two seasons the ground has to be kept in the best possible tilth, and at the end of the third season from seed the roots may be dug just before the ground is likely to freeze. In lifting the roots it is important not to expose them to the drying influence of the sun and air more than is unavoidable. It is also important to preserve the entire clump intact with as much soil adhering to the roots and crown as possible. They are then placed in a shed, pit, or cool cellar, and covered with sand or soil to prevent their drying out. Moderate freezing does not injure the roots, and some growers think that it even adds to their forcing value.

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