Journal of Kerbala for Agricultural Sciences

An experiment was conducted in a plastic house in Horticulture and Forestry Department belongs Al-Najaf Agricultural Directorate during the growing seasons of 2015-2016. The aim was to study the effect of the spray amino acids and irrigation depth on growth and yield of egg plant (Solanum melongena L.). The experiment had comprised twelve treatments; three concentrations (0 and 2 and 4) ml.L-1 of amino acids and four depth of water applications surface drip irrigation D0 and sub-surface at depth of 4 and 8 and 12 cm namely D4 and D8 and D12, respectively. Variations between the means were tested according to Duncan's Multiple Range (D.M.R.)   at probability of 0.05.  
 
     Results showed that spraying with amino acids or add irrigation water with different depths improved vegetative growth (plant height and leaf area and dry root weight and total vegetative dry weight), and total yield. Interaction amino acid spraying with 4 ml.L-1 with treatment of depth 4 cm gave the highest values compared with the interaction treatment of control with treatment of depth 12 cm which gave the lowest values.

Two experiments was conducted. The first experiment is laboratory,  by using the Columns techniques to evaluate the effectiveness of Gypsum Phosphate as a chemical mending. The second experiment is a biological to evaluate the efficiency of Gypsum Phosphate to improve the qualities of the soil cultivated flora of barley which  irrigated by the saline water of the main out full at Abu-Ghariab location. 0,50 and 100 ton . ha-1 of Gypsum Phosphate was added at two replicate then irrigated water given  at 5000 m3. ha-1. Results of chemical analysis tests of the soil columns (colums technique) showed and proved using Gypsum Phosphate efficiency as  good chemical mending at saline water as important calcium resource, as well as Gypsum Phosphate addition in columns technique leads to reduce EC and SAR in soil to a limit value which allowed for optimal growth of barley plants, also leads to reduce absorption of Sodium Na+ by plants roots and thus improve the most nutrient absorption, which reflected positively in increasing plant growth. Also increasing of Calcium concentration in columns Cause led to the removal of agreater amount of sodium  out of the roots zone and thus improving the qualities of soil chemical,physical and fertility. Results also indicate that the optimal level of Gypsum Phosphate addition was at level 50 ton.ha-1. And the higher level of it was unsignificant economically.