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Modification of the productivity index model

Lookup NU author(s): Dr Robert Payton


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A soil erosion-productivity model which considers the effect of soil water storage capacity, crop evapotranspiration, soil chemical and physical properties important for crop growth has been modified. The model is shown to give good predictions and promises to be an improvement over the former productivity index (PI) because it accounts for weather and cropping conditions. It also promises to give more reliable results than the currently used insufficient models which consider only soil water storage capacity and crop evapotranspiration. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Publication metadata

Author(s): Mulengera MK, Payton RW

Publication type: Article

Publication status: Published

Journal: Soil & Tillage Research

Year: 1999

Volume: 52

Issue: 1-2

Pages: 11-19

Print publication date: 13/08/1999

ISSN (print): 0167-1987

ISSN (electronic):

Publisher: Elsevier BV


DOI: 10.1016/S0167-1987(99)00022-7


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