My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 56 No. 3, p. 807-813
     
    Received: Mar 27, 1990
    Published: May, 1992


    * Corresponding author(s):
 View
 Download
 Alerts
 Permissions
 Share

doi:10.2136/sssaj1992.03615995005600030022x

Ameliorating Chlorosis-Inducing Soils with Rock Materials of Varying Porosity and Iron Content

  1. Gerhard Clemens and
  2. Arieh Singer 
  1. Institut für Bodenkunde und Standortslehre, Universität Hohenheim, Postfach 700562, 7000 Stuttgart-70, Germany
    Seagram Center for Soil and Water Sciences, The Hebrew Univ. of Jerusalem, Rehovot 76100, Israel

Abstract

Abstract

Lime-induced chlorosis is a severe problem, affecting many crops in arid- and semiarid-zone soils. Applications of Fe chelates are expensive and only effective in the short term. The ameliorating effects of rock materials on three chlorosis-producing calcareous soils from Israel were determined in pot tests and in the field. Chlorophyll concentrations of peanut plants (Arachis hypogaea L.) grown in pots with additions of up to 15% (v/v) pumice or tuff-lapilli to the soils were compared with controls and Fe-ethylenediaminedihydrochloric acid (EDDHA) treatments. Additions of 10% (v/v) tuff-lapilli were more effective than those of pumice in small-pot tests of all three soils. Positive effects persisted for a second growth period. In large-pot tests, only 15% (v/v) additions were effective in two soils. In field tests, the three soils were treated with pumice or tuff-lapilli (10% v/v) or basalt powder (5.5% w/w). Basalt powder was the most effective in raising chlorophyll concentrations to levels similar to or greater than those obtained from Fe-EDDHA. Basalt powder was also the most effective in increasing pod and hay yields on two soils. Also, basalt appeared to have long-term effects. Only where chlorosis was not severe and where poor aeration appeared to be an additional factor were the effects of tuff-lapilli and pumice equal or even superior to those of basalt powder. On two soils with severe chlorosis, addition of porous, Fe-poor materials had no effect. Either because the soils were well aerated or because CO2 production was low, CO2 in the soil air was low and not a major factor determining HCO3- in water extracts.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America