Science And Fruit Growing Being An Account of the Results Obtained At the Wobur
Science And Fruit Growing Being An Account of the Results Obtained At the Wobur
Herbrand Arthur Russell Bedford
The book Science And Fruit Growing Being An Account of the Results Obtained At the Wobur was written by author Herbrand Arthur Russell Bedford Here you can read free online of Science And Fruit Growing Being An Account of the Results Obtained At the Wobur book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Science And Fruit Growing Being An Account of the Results Obtained At the Wobur a good or bad book?
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It is somewhat remarkable that, in spite of the large amount of work which had been done on Bordeaux spraying, both in France and America, no attempt had been made to obtain information on the point of most fundamental importance, 172 INSECTICIDES, FUNGICIDES, ETC. 173 namely, the compound present in it. This question was attacked at Woburn, 1 and was found to be one of great complexity. The addition of lime, preferably in the form of clear lime- water, to a solution of copper sulphate, forms a... series of different compounds (basic sulphates) according to the proportions taken. The simplified chemical formulae of these, and the proportions of sulphate (CuSO 4, 5H 2 O) and lime required for their formation, are as follows Proportions required. Sulphate. Lime. A. IoCuO, 2-5SO 3 (or 4CuO, SO 3 ) . I : 0-169 B. IoCuO, 2SO 3 . . . . I : 0-18 C. IoCuO, SO 3 . . . . I : 0-203 D. IoCuO, SO 3, 3CaO . I : 0-270 F. IoCuO, aoCaO . . . . I : 0-674 The compound A is formed when the lime is just sufficient to precipitate the whole of the copper; C is the product when the proportion of lime is increased up to the point when any further addition would make the liquid alkaline, and F is the product finally obtained with excess of lime.
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