article/chapitre/communication

Determining soil and water sodicity from electrode measurements

J. Rhoades ; N. Manteghi ; S. Lesch ; D. Slovacek | 1997

A method is presented for estimating the sodium adsorption ratio (SAR) of the saturated soil-paste extract from three electrode measurements made directly in the saturated soil-paste. An analogous method is presented for the determination of the[...]

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article/chapitre/communication

Spatial prediction of soil salinity using electromagnetic induction techniques, 1: Statistical prediction models, a comparison of multiple linear regression and cokriging, 2: An efficient spatial sampling algorithm sintable for multiple linear regression model identification and estimation

S. Lesch ; D. Strauss ; J. Rhoades | Washington [USA] : AGU | 1994

1.-We describe a regression-based statistical methodology suitable for predicting field scale spatial salinity (ECe) condition from rapidly acquired electromagnetic induction (ECa) data. This technique uses multiple linear regression (MLR) model[...]

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