D. Blachinski

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The hypothesis that enrichment of the foliage with nitrogen and potassium may enhance host resistance toAlternaria and thus reduce disease severity, was examined for potato and tomato (A.solani) and for cotton (A.macrospora). First, the activity of urea (CO(NH2)2) and the salts NH4NO3, (NH4)2S04, KNO3, KCl, K2SO4 and KH2P04 againstA. solani andA. macrospora(More)
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