. Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture. Horticulture; Botany. 196 Principles of Plant Culture. stai-ts vigorously, as is iiidifated by vapor rising from tile lieap, and the onter pait of the mass should be plared in the center of the new pile. Lea\es ferment slower than the other materials above named, and hence may often be advantageously mixed with them to lengthen the period of fermentation. Heat is economized by placing the fermenting material in a pit in the grou^nd, but hotbeds are often made above groun
. Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture. Horticulture; Botany. 196 Principles of Plant Culture. stai-ts vigorously, as is iiidifated by vapor rising from tile lieap, and the onter pait of the mass should be plared in the center of the new pile. Lea\es ferment slower than the other materials above named, and hence may often be advantageously mixed with them to lengthen the period of fermentation. Heat is economized by placing the fermenting material in a pit in the grou^nd, but hotbeds are often made above ground. The hot- bed pit should be in a well-drain- ed and sheltered place, and two to two and one- half feet deep. In this the heat- FiG. 94. Cross-section of hotbed In pit. The frame ing material is banked up a little with earth. (After Greiner). oV,nnlfl he inod eiately packed, until the pit is nearly or quite full. The frame may then be placed over the pit, after which the heating material should be covered with soil and the sash put on to confine the warmth. Within a few days after covering with the sash, the fermenting material usually generates a rather violent heat, which should be per- mitted to decline to about 90° F., before planting seeds or cuttings in the hotbed. The same protection against excessive heat or cold is used as for the cold-frame; but the hotbed recpiires much more care in ^'entilation, since the heating material generates vapor and carbonic acid as well as heat, and these when present in excess are detrimental to plant 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 Goff, E. S. (Emmett Stull), 1852-1902. Madison, Wis. , The Author
Size: 2248px × 1111px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjecthorticulture
