The effect of potassium fertilization on iron deficiency
作者:
Phillip Barak,
Yona Chen,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1983)
卷期:
Volume 14,
issue 10
页码: 945-950
ISSN:0010-3624
年代: 1983
DOI:10.1080/00103628309367422
出版商: Taylor & Francis Group
关键词: Potassium;iron nutrition;lime‐induced chlorosis;cation:anion balance
数据来源: Taylor
摘要:
Preliminary experiments indicate that potassium fertilization at a rate of 270 mg K/kg soil amel.iorates Iron deficiencies in peanuts grown in an extremely calcareous soil (63% CaCO3). Amelioration was greater with the application of KCl than with that of KNO3or 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.
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