. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom. Gardening -- Dictionaries; Plants -- North America encyclopedias. 737. Common cylindrical drain tile; and a scoop for preparing the bed for the tile. since the land may be as fully drained without them, as shown in Fig. 739 ; therefore, they only serve to conduct the water of the dr
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom. Gardening -- Dictionaries; Plants -- North America encyclopedias. 737. Common cylindrical drain tile; and a scoop for preparing the bed for the tile. since the land may be as fully drained without them, as shown in Fig. 739 ; therefore, they only serve to conduct the water of the drains proper. Tiles of 3 to 4 and 5 inches diameter should be used when the drains are infrequent and the flow of water considerable. Smaller ones, 2 to 3 inches in diameter, will suffice when the intervals be- tween the drains are narrow. Drains should have as uniform a fall as possible, and no abrupt lateral curves or sharp angles should occur as are seen in many places in Fig. 738. If the drain has a rapid fall in its upper reaches, as is often the case, and but slight fall in the lower, a silt basin should be constructed at the point at which the rapid changes into the slight fall, if obstruct- ing silt is present. All drains which may be necessary should be placed before the planting occurs. Orchard lands may be drained in the spring, fallowed in the sum- mer, and planted in the fall or the following spring. Drains placed at frequent intervals because of the te- nacity of the soil should be comparatively shallow, for if placed deep or at wide intervals, the water will be too long reaching them. If drains are placed at wide inter- vals they should be at least 3}4 feet deep to be most effi- cient. Tf the parallel system is adopted {Fig. 739), there. 738. Improper method of drainine as a drain, and but one outlet will be required (Fig. 740). Drains through which water runs for the greater part of the year are likely to become obstructed by roots, if water-loving trees, such as
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