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Subject:	Saturated soil water content
From:	Tesfalidet Ghebreab <[log in to unmask]>
Reply To:	DSSAT - Crop Models and Applications <[log in to unmask]>
Date:	Thu, 5 Sep 2002 19:44:29 +0200
Content-Type:	text/plain
Parts/Attachments:	text/plain (11 lines)

Dear all,
Rithcie (1985) soil water balance model requires saturated soil water content as an input. I am not so sure but the saturated soil water content is  equal to 100* (1- bulk density/particle density) or the total porosity. I am wondering why Piara Singh in his online technical manual has calculated it as (1- bulk density/particle density) * 85 or 85% of the total porosity. Can someone explain this to me?

Thank you for your time.

Tesfalidet A. Ghebreab
University of Natal
Department of Soil Sciences and Agrometeorology
Post Bag X01 Scottsville, Pietermaritsburg
South Africa.

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