Greenhouses, their construction and equipment . he result of: (i) Manure from poorly-fedhorses; (2) cold weather; (3) too wet or toodry manure; (4) too much litter in the man-ure and (5) shavings or swamp hay used aslitter instead of straw or leaves. If a steady heat for several weeks is re-quired, the manure is placed in the pit in thinlayers and trampled quite solidly, especially SASH-BED CONSTRUCTION 23 along the sides and in the corners, keeping itas level as possible. Unless the hotbed ismade so that the frame settles with themanure it must be filled to within 2 or 3inches of the top of t
Greenhouses, their construction and equipment . he result of: (i) Manure from poorly-fedhorses; (2) cold weather; (3) too wet or toodry manure; (4) too much litter in the man-ure and (5) shavings or swamp hay used aslitter instead of straw or leaves. If a steady heat for several weeks is re-quired, the manure is placed in the pit in thinlayers and trampled quite solidly, especially SASH-BED CONSTRUCTION 23 along the sides and in the corners, keeping itas level as possible. Unless the hotbed ismade so that the frame settles with themanure it must be filled to within 2 or 3inches of the top of the south side of theframe to provide for settling. If it is proper-ly made, the temperature will soon rise to120 degrees or more, but will gradually fall,and when it reaches 90 degrees the seedsmay safely be sown. The temperature maybe determined by plunging a reliable ther-mometer through the soil into the a hotbed is arranged to be heatedby flues, drain or sewer tile is used, and theflues are connected with a fireplace at one end. Fig. 9.—Hotbed arranged for heating by flues of the bed and a chimney at the other, sothat the smoke and heat from the fire travelthe whole length of the bed. Hot water or 24: GREENHOUSES steam pipes may be run through these fluesif desired, or they may be placed along thesides of the frame above the forcing house, because of its conveni-ence, possibility of heat regulation and com-parative cheapness of operation is rapidlytaking the place of the hotbed in a commer-cial way in the starting of early plants, butit is promoting the use of coldframes. Thesestructures rarely receive artificial heat and
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkorangejuddc
