. Vegetable forcing. Forcing (Plants); Vegetable gardening. SOIL STERILIZATION 95 lift the pan at all four corners, transferring the weight to the car wheels. The whole apparatus is then rolled along, the width of the pan, and if the worm gear is well oiled, a sharp throw of the crank will cause it to spin in lively fashion, lowering the pan to its new position. The gear is intended for raising short lines of light venti- lators, but fills this purpose admirably. Steam is delivered in the center of the pan by means of a hose from a temporary steam line into a pipe running lengthwise beneath wi
. Vegetable forcing. Forcing (Plants); Vegetable gardening. SOIL STERILIZATION 95 lift the pan at all four corners, transferring the weight to the car wheels. The whole apparatus is then rolled along, the width of the pan, and if the worm gear is well oiled, a sharp throw of the crank will cause it to spin in lively fashion, lowering the pan to its new position. The gear is intended for raising short lines of light venti- lators, but fills this purpose admirably. Steam is delivered in the center of the pan by means of a hose from a temporary steam line into a pipe running lengthwise beneath with a few holes drilled through to spread the ; Perforated pipe.—The perforated pipe system is popular and highly satisfactory. There are many modifications in its installment, but the general plan is to provide gangs or sets of perforated iron pipe. These may. Fig. 31.—Peg or rake steam sterilizer used by some growers at Toledo, Ohio. be 25 to 90 feet long, depending upon the supply of steam, size of house and number of men available to move them. Fifty-foot lengths are convenient to handle. The number of pipes in each set is variable, although five is a common number. The perforated pipes are usually 1)4 inches in size, although lj^-inch pipe is used in some of the largest greenhouses where the gangs are very long. The holes are % or J4 of an inch in size, sometimes larger, and about a foot apart. The pipes are laid 16 to 18 inches apart and connected with a 2-inch header. A successful grower at Irondequoit, N. Y., uses a 2-. 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 co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectvegetablegardening
