. Diseases of economic plants. Plant diseases. Fungicides 441 mon use in this connection for a suspension of calcium hy- droxid) a definite quantity of fresh stone-lime is placed in a trough, slaked, and made up to a volume corresponding in gallons to the weight of the lime in pounds. In slaking the lime a small quantity of water is used to start the reaction, and just enough water is added, as the lime slakes, to prevent crumbling. The lime and water are stirred from the time the lime starts to slake until the reaction appears to be Fig. 222. — A convenient arrangement for mixing B
. Diseases of economic plants. Plant diseases. Fungicides 441 mon use in this connection for a suspension of calcium hy- droxid) a definite quantity of fresh stone-lime is placed in a trough, slaked, and made up to a volume corresponding in gallons to the weight of the lime in pounds. In slaking the lime a small quantity of water is used to start the reaction, and just enough water is added, as the lime slakes, to prevent crumbling. The lime and water are stirred from the time the lime starts to slake until the reaction appears to be Fig. 222. — A convenient arrangement for mixing Bordeaux mixture. After Vermont Agr. Exp. Sta. Instead of diluting to the final volume at this point, it is somewhat desirable to add just enough water to prevent drying out and to allow the mixture to cool before the further addition of water. This procedure permits further slaking, which results in a noticeably creamier stock solution, with fewer particles of unslaked lime to clog the nozzles. The common method in use in making Bordeaux mixture in the field has been to dilute the required quantities of copper sulfate and lime separately to half the final volume. 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 Stevens, Frank Lincoln, 1871- [from old catalog]; Hall, John Galentine, 1870- [from old catalog] joint author. New York, The Macmillan company
Size: 1870px × 1336px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
