The Effect Of Potassium On Iron Chlorosis In Calcareous Soils

Phillip Barak, Yona Chen

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Potassium fertilization at rates of 135 to 405 mg K / kg soil ameliorated iron chlorosis in peanuts grown in an extremely calcareous soil (63Z CaCO3); such treatments doubled and tripled chlorophyll contents. Potassium availability in soils was important in achieving this effect. K2SO4 was found to be more effective than KC1. These results are attributed to the cation-anion balance of ion uptake and consequent rhizosphere acidity.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalJournal of Plant Nutrition
Volume7
Issue number1-5
DOIs
StatePublished - 1 Jan 1984

Keywords

  • cation anion balance
  • chlorosis
  • iron
  • potassium

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