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A Comparison of Strategies for Ameliorating Subsoil Acidity

II. Long-Term Soil Effects

M.P.W. Farinaa, P. Channonb and G.R. Thibaudb

a 27 Drew Ave., Howick 3290, South Africa
b KwaZulu-Natal Dep. of Agric., Cedara College, Private Bag X9059, Pietermaritzburg 3200, South Africa



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Fig. 1 Temporal effects of gypsum on exchangeable Ca and Mg, acidity, and exchangeable and extractable SO4–S (values denote the difference between treatments receiving lime and gypsum and those receiving lime only)

 


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Fig. 2 Temporal effects of gypsum on percent acid saturation, pH in water, pH in 1 M KCl, and the differential between pHw and pHs (values denote the difference between treatments receiving lime and gypsum and those receiving lime only). Refer to Fig. 1 for legend

 





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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education
Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality
The Plant Genome
Copyright © 2000 by the Soil Science Society of America.