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Nicotianas are easily cultivated, but in northern latitudes require a hot exposure and a deep rich loose loamy soil, rich in lime and potash, both of which may be supplied from wood-ashes. As the seeds grow slowly in cool weather, they should be started hi early spring under glass and kept moist and warm. For tobacco, in districts farther north, hotbeds will secure rapid growth, but in other localities coldframes with a southern exposure should be used. The soil should be a loose loam of high fertility, and thoroughly drained. In the fall, forty pounds of lime and two hundred pounds of stable-manure to 100 square feet of bed should be turned under. In the spring, about two weeks before sowing the seed, twenty pounds of cottonseed-meal or castor pomace, one pound of acid phosphate, and one-half pound of carbonate or sulfate of potash to 100 square feet of bed-area should be thoroughly spaded into the soil to a depth of 4 or 5 inches, and the bed-surface finely pulverized. If possible, the soil should then be sterilized with steam to prevent fungous diseases and the growth of weed seeds. The seed should be sown at the rate of an even tea- spoonful of dry seed to 100 square feet of bed. In order to secure an even distribution of the seed, it is thoroughly mixed into two quarts of land-plaster, finely sifted wood-ashes or bone-meal. Three sowings should be made to insure an even distribution over the bed, the light color of the filler material serving to indicate the evenness of the distribution. The seed must be covered by going over the bed with a roller, or packing with a plank. When young, nicotianas will stand considerable frost, but become more sensitive with age. They are well adapted to pot or tub culture and are fine for summer porch-decoration. N. alata, best known in the trade as N. affinis, and N. Sanderae are the most popular flower-garden plants. Of the larger species for subtropical bedding, N. glauca, N. tomentosa, and N. Tabacum are best.
 
Nicotianas are easily cultivated, but in northern latitudes require a hot exposure and a deep rich loose loamy soil, rich in lime and potash, both of which may be supplied from wood-ashes. As the seeds grow slowly in cool weather, they should be started hi early spring under glass and kept moist and warm. For tobacco, in districts farther north, hotbeds will secure rapid growth, but in other localities coldframes with a southern exposure should be used. The soil should be a loose loam of high fertility, and thoroughly drained. In the fall, forty pounds of lime and two hundred pounds of stable-manure to 100 square feet of bed should be turned under. In the spring, about two weeks before sowing the seed, twenty pounds of cottonseed-meal or castor pomace, one pound of acid phosphate, and one-half pound of carbonate or sulfate of potash to 100 square feet of bed-area should be thoroughly spaded into the soil to a depth of 4 or 5 inches, and the bed-surface finely pulverized. If possible, the soil should then be sterilized with steam to prevent fungous diseases and the growth of weed seeds. The seed should be sown at the rate of an even tea- spoonful of dry seed to 100 square feet of bed. In order to secure an even distribution of the seed, it is thoroughly mixed into two quarts of land-plaster, finely sifted wood-ashes or bone-meal. Three sowings should be made to insure an even distribution over the bed, the light color of the filler material serving to indicate the evenness of the distribution. The seed must be covered by going over the bed with a roller, or packing with a plank. When young, nicotianas will stand considerable frost, but become more sensitive with age. They are well adapted to pot or tub culture and are fine for summer porch-decoration. N. alata, best known in the trade as N. affinis, and N. Sanderae are the most popular flower-garden plants. Of the larger species for subtropical bedding, N. glauca, N. tomentosa, and N. Tabacum are best.
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N. Bigelovii, Wats., with sts. 1-2 ft. tall, fls. white 1-2 in. long, is of interest as being the possible origin of N. quadrivalvis and N. multivalvis. Calif. — N. trigonophylla, Dunal, has sts. 15 in. tall: Lvs. triangular, sessile, somewhat clasping. 2-2¼ in. long, ½-¾ in. wide: corolla yellowish green, ½-⅝ in. long: viscous pubescent throughout. Utah to Mex. and Calif.
 
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