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Abstract

 

This article in SSSAJ

  1. Vol. 34 No. 2, p. 252-254
     
    Received: Aug 5, 1969
    Published: Mar, 1970


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doi:10.2136/sssaj1970.03615995003400020022x

Exchangeable Aluminum As a Criterion for Liming Leached Mineral Soils1

  1. E. J. Kamprath2

Abstract

Abstract

Lime rates equivalent to the amount of exchangeable Al reacted primarily with the exchangeable Al and reduced the Al saturation of the effective CEC to less than 30%. Lime rates greater than the equivalent amount of exchangeable Al resulted in appreciable amounts of nonexcharigeable acidity being neutralized. Below pH 5.4 the buffer capacity of the soils was primarily due to exchangeable Al. Lime applications based on the exchangeable Al extracted with a neutral unbuffered salt appear to be a realistic approach for Ultisols and Oxisols.

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