Soil classification and land evaluation in some soils of Darb El-Arbaein area, South of New Valley, Egypt

arid soils classification des sols crops cultivation cultivo cultivos egipto egypt loam soils perfil del suelo plante de culture pratique culturale profil du sol soil chemicophysical properties soil classification soil profiles soil texture sol de zone aride sol sablolimoneux suelo franco textura del suelo texture du sol