POTATO BLIGHT.
IKON SULPHATE OK BORDEAUX? A correspondent, "Sulphate," uslts whether sulphate of iron distributed in adry powdered state is as effective as a bliclil: preventative, m- potatoes, us is spriiyiiiK with Bordeaux mixture. . ■ Sulphate of iron applied at the rnto of 1 cwt. per acre is useful' in contnilHiiK certain potato diseases , which attack thu plant below the, surface of the ground, but it is of no valuo in preventing attacks of Irish blight. For this disease there is no better remedy than the ordinary Bordeaux mixture, spraying with which is each year becoming moro general in all potato-growing districts. Dr. A. B. Griffiths, an English authority, is one who firmly believed in mid strenuously advocated the nso of sutphnto of iron as an ingredient in potato manure formulas. hi his "Treatise on Manures" ho demonstrates its value, not only as air nut to obtaining a greater yield of tubers, but also as u preventive of potato disease.
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Dominion, Volume 5, Issue 1627, 19 December 1912, Page 8
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159POTATO BLIGHT. Dominion, Volume 5, Issue 1627, 19 December 1912, Page 8
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