Assessment of different methods of soil suitability classification for wheat cultivation

analyse de sol arid zones carbonate carbonates carbonatos classification des sols crop yield cultivation cultivo depth drainage drenaje electrical conductivity evaluation exigence des plantes land use modele modelos models necesidades de las plantas perfil del suelo ph piedras pierre plant requirements pratique culturale profil du sol profondeur profundidad reconocimiento de suelos rendement des cultures rendimiento de cultivos sloping land soil analysis soil classification soil morphological features soil profiles soil surveys soil texture stones terre en pente terreno en declive textura del suelo texture du sol trait morphologique du sol triticum aestivum utilisation des terres zone aride