. Vegetable gardening . Vegetable gardening; Project method in teaching. CULTURAL DIRECTIONS 443 large enough for steam, provided the lines are not more than 60 feet in length. The lines of pipe should be care- fully graded and have a uniform fall toward the return end; in fact, the rules governing greenhouse heating ap- ply to the piping of beds of this kind. A general idea of the construction of a pipe-heated bed may be gained from the cross section shov^rn as Figure % 1 ^f , FIG. 102. CROSS-SECTION OF PIPE-HEATED FRAME In the far South it is not necessary to provide any kind of protec
. Vegetable gardening . Vegetable gardening; Project method in teaching. CULTURAL DIRECTIONS 443 large enough for steam, provided the lines are not more than 60 feet in length. The lines of pipe should be care- fully graded and have a uniform fall toward the return end; in fact, the rules governing greenhouse heating ap- ply to the piping of beds of this kind. A general idea of the construction of a pipe-heated bed may be gained from the cross section shov^rn as Figure % 1 ^f , FIG. 102. CROSS-SECTION OF PIPE-HEATED FRAME In the far South it is not necessary to provide any kind of protection to the seed bed. In the North, pro- tection with glass or canvas will serve the purpose with- out artificial heating. Any fine, light, sandy soil may be used for bedding the potatoes. First, there should be several inches of soil in the bed and the upper inch free from all coarse materials. Then the tubers are placed, by hand, on the surface of the bed so that they do not touch each other. Very large potatoes may be split lengthwise, the cut sur- faces being placed next to the sand. After placing tubers, cover them with about 3 inches of fine soil and then water thoroughly. At the time of bedding the temperature of the bed should range from 80 to 85 degrees and be gradually dropped during a period of six weeks, perhaps, to about 60 degrees, when the plants may be set in the field if weather conditions are suitable. The air temperature. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Watts, Ralph Levi, 1869-. New York : Orange Judd
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectvegetablegardening
