. Fig. 237. — Disinfecting soil with a Sargent disinfeetor. Original. of the regular method of tobacco seed-bed preparation, it having been resorted to as a preventive of root-rot due to Thielavia. Two methods of surface firing are in vogue; the first, by direct firing, the second requiring the use of a pan. In the direct method, the land to be disinfected is first thor- oughly pulverized and manure applied. It is then covered with straw, brush, and wood sufficient to make a hot fire. This is ignited and allowed to burn an hour or so, after which the ashes are raked into the surface soil. The
. Fig. 237. — Disinfecting soil with a Sargent disinfeetor. Original. of the regular method of tobacco seed-bed preparation, it having been resorted to as a preventive of root-rot due to Thielavia. Two methods of surface firing are in vogue; the first, by direct firing, the second requiring the use of a pan. In the direct method, the land to be disinfected is first thor- oughly pulverized and manure applied. It is then covered with straw, brush, and wood sufficient to make a hot fire. This is ignited and allowed to burn an hour or so, after which the ashes are raked into the surface soil. The second method, pan firing, consists in the use of a sheet-iron pan, 3' by 9', which is set in the middle of the seed
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
