THE EFFECT OF IMPROVEMENT ( ORGANIC MATTER-BENTONITE) ON WATER CONSUMPTION USE AND YIELD OF POTATO IN GYPSIFERIOUS DESERT SOIL UNDER DRIP IRRIGATION
Al-Mağallaẗ al- irāqiyyaẗ li-dirāsāt al- ṣaḥrāʾ/Al-Maǧallaẗ al-ʻirāqiyyaẗ li-dirāsāt al-ṣaḥrāʼ