A field experiment was carried out according to complete randomize block design
(R.C.B.D) with three replicates during three years 2014, 2015 and 2016 in Nafzaoua
region in southern Tunisia, to study the impact of soil reclamation processes on soil
and the production of Daklat El Nour. The results showed a decrease in the salinity
ratio throughout the years of the experiment. In contrast, the palm tree had several
important morphological changes, and the production increased up to 70%.
The Al-Hassa oasis at the Kingdom of Saudi Arabia is an agricultural area
depends on irrigation associated with a drainage network with three main
drainage canals. Two of them, the D١ and the D٢, cover most of the oasis total
area (٢٠،٠٠٠ ha) whil
e the third one (the D٣) covers a limited area. This study
aimed to examine the spatial variability in the concentrations of NO٣
- and PO٤٣- in the drainage water of the D١ and the D٢ canals.
