Influence of foliar application of nitrogen and potassium onalternaria diseases in potato, tomato and cotton

@article{Blachinski2008InfluenceOF,
  title={Influence of foliar application of nitrogen and potassium onalternaria diseases in potato, tomato and cotton},
  author={D. Blachinski and Dani Shtienberg and Amos Dinoor and Uzi Kafkafi and Ludwik S. Sujkowski and Thomas A. Zitter and William E. Fry},
  journal={Phytoparasitica},
  year={2008},
  volume={24},
  pages={281-292}
}
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 was determinedin vitro; each of the compounds tested had a weak inhibitory effect on spore germination of A.solani (ED50 > 1000 μg/l) and… CONTINUE READING