الرئيسية/The management of soil and water for Date Palm in hyper-arid region (South Algeria) (1)/The management of soil and water for Date Palm in hyper-arid region (South Algeria) (1) The management of soil and water for Date Palm in hyper-arid region (South Algeria) (1) The management of soil and water for Date Palm in hyper-arid region (South Algeria) (1)