Productive farming . t his grain from having the disease by a very simple and cheap process. The seed should be treated in a liquid before itis planted. The liquid usedis formalin and water. Ifinto a common barrel arepoured twenty gallons ofwater and then one half-pint of strong formalin isthoroughly mixed with, it,the liquid will be ready foruse. The seed grain is placedin a loose sack and thenlowered into the barrel ofliquid; after about ten min-utes all of the black smut orspores in the seed will bekilled. The sack is thenraised up and allowed todrain for a few wet seed is then
Productive farming . t his grain from having the disease by a very simple and cheap process. The seed should be treated in a liquid before itis planted. The liquid usedis formalin and water. Ifinto a common barrel arepoured twenty gallons ofwater and then one half-pint of strong formalin isthoroughly mixed with, it,the liquid will be ready foruse. The seed grain is placedin a loose sack and thenlowered into the barrel ofliquid; after about ten min-utes all of the black smut orspores in the seed will bekilled. The sack is thenraised up and allowed todrain for a few wet seed is then spreadout to dry before it isplanted. This drying maybe done on a clean barnfloor, in a wagon-box, or ona cloth stack-cover spread on the ground. The seed should be spread out thin enough so that it will dry before it begins to sprout. The same liquid may be used for many sacks of-seed, so that the cost of treating enough seed for a large field is not great. Exercise.—Treating Oats for Smut.— It is suggested that. Fig. 148.—Loose smut of oats mountedun cotton under glass. (A. E.) DISEASES OF PLANTS—SPRAYING 233 the pupils bring some oats in a sack, and treat them in apail of water with a httle formalin in it. Exercise.—Shoming Grain Smut.—Perhaps sample headsof diseased grain can be brought to school. If so, preservethem as shown in Fig. 148. Some one should bring samplesof corn smut disease to show to the class. Corn smut is notprevented by the formalin treatment. Exercise.—Treating Seed Potatoes.—The pupils may-bring a pail and a few potatoes from home. A half-ounce (four teaspoonfuls) of formalin should be added to
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Keywords: ., bookcentury1900, bookdecade1910, bookidcu, booksubjectagriculture
