The effect of potassium fertilization on iron deficiency

Phillip Barak, Yona Chen

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Preliminary experiments indicate that potassium fertilization at a rate of 270 mg K/kg soil ameliorates iron deficiencies in peanuts grown in an extremely calcareous soil (63% CaCO3). Amelioration was greater with the application of KC1 than with that of KNO3 or K2HPO4, indicating that the cation:anion balance of roct uptake is involved. Potassium chloride application caused a 73% increase in the chlorophyll content; this value is 90% of that of the FeEDDHA treatment. Manipulation of the cation: anion balance of macronutrients may prove to be an effective means of controlling lime-induced chlorosis.

Original languageEnglish
Pages (from-to)945-950
Number of pages6
JournalCommunications in Soil Science and Plant Analysis
Volume14
Issue number10
DOIs
StatePublished - 1 Aug 1983

Keywords

  • induced chlorosis cation anion balance
  • Potassium iron nutrition lime—

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