Effect of some physical properties of clay soil on the growth of Henna Lawsonia inermis L grown on furrows in date palms orchards


Experiment was carried out in the clay soil of the Abu Khaseeb on an area of southern Iraq (13 * 4) m2 of the agricultural season 2007-2008. Divided the land into furrow (length 10 m, width 30 cm and a depth of 20 cm). Henna was planted by three methods(central, shoulder, and upper shoulder )of furrow, and six replicates for each site and left a distance of 45 cm between furrows . Estimated that some chemical and physical properties of soil and growth indicators for the henna plant at the end of the study. Results were analyzed using randomized complete design sectors. The results showed high strength resistance of soil penetration at the end of the season to greater than 3.5 kg cm -2 increase the Bulk density of virtual for the treatment of central furrow compared with shoulder and top shoulder (1.40, 1.31, 1.29) Mg m-3, respectively, for first depth and lower salinity a difference of significant 0.05. But the high moisture content amid central furrow reducing the concentration of salts as well as the role of roots in the use of water at this depth being more intense than the rest of the depths. And had a positive effect on the growth of plants henna. Have shown the treatment central furrow the highest rate of dry weight and height of plants than in Shoulder and upper shoulder (102,83, 44) cm respectively, with the difference of moral positions. and for the impact of agriculture on the variance of salts , penetration and bulk density at the level of significance 0.01.