ANBAR JOURNAL OF AGRICULTURAL SCIENCES

Abstract

A field experiment was conducted in agricultural season 2003 / 2004 at Al-Anbar Governorate – Ramadi in silty clay soil classified as Typic Torrifluvent , to study the effect of organic matter and soil mulching on moisture and salt distributions under conventional and strip drip irrigation.
The results showed that Moisture content decreased far from drippers vertically and horizontally , with great rates under conventional drip irrigation as compared with strip drip irrigation . The moisture content in control treatment (without organic matter and mulching) at depth 10-40 cm 16.3 – 17.3% and 20.2 – 21.4% for conventional and strip drip irrigation respectively , and with the addition of organic matter and soil mulching moisture content increased to 25.2 and 30.9 % for the depth 0-40 cm under conventional and strip drip irrigation respectively.Also Salt concentrations decreased under strip drip irrigation as compared with conventional drip irrigation which was for control treatment 2.2 and 1.2 dS.m-1 for depth 0-10 cm under conventional and strip drip irrigation respectively , While for the treatment of organic matter and soil mulching gave the lowest concentration of salt 0.9 dS.m-1 for depth 0-20 cm.