Two field experiments were conducted on saline clay soil in a split-split-plot design with four replicates. The main plots were arranged to study the effect of phosphoric acid applied with irrigation water ( without, 6 L ha -1 and 12 L ha -1 ) where subplots were occupied to with or without the zinc spray Zn (at 13% chelated on EDTA), While the sub-subplots were occupied to anti-stress foliar which included Salicylic acid SA (foliar spraying of 0.01 mM), foliar spraying of calcium (at 10% chelated on EDTA) and Salicylic acid with calcium (foliar spraying of 0.01mM with foliar spraying of calcium at 10% chelated on EDTA). Where the interaction between these treatments showed that using phosphoric acid (12 L ha -1 ) acid with zinc spray (at 13% chelated on EDTA) and spraying both salicylic acid (0.01 mM) and calcium (at 10% chelated on EDTA) together showed an effective effect on increasing growth, the yield of grains, oil content and salinity tolerance by reducing the concentration of sodium and chloride in the sunflower plant.

Rice (Oryza sativa L.) grades a must-have cereal crop it rates the second weighty cereal crop moreover it's a salt-defenseless crop. Sulfur plays a basic role in plant development and growth processes. Potassium is the most rich cationic and essential nutrient. It is very important for crop yield and its tolerance to abiotic stresses. Is it possible that the effect of the interaction between them will be more effective in resisting salinity?. Two field experiments were operated on a clayey soil for two summer seasons .The treatments are a split-plot design included the influences of using agricultural sulfur without addition, 300 Kg ha -1 and 650 Kg ha -1 were applied on soil, while the sub plots were occupied by foliar applications of potassium as potassium citrate without addition, 36% and 45% . Sulfur application in soil and potassium foliar levels were improving plant height, no. of productive tillers hill -1 , dry weigh, 1000-grains weight, grain yield, straw yield and NPK uptake of rice plant. Soil addition of sulfur was attributed positively in modifying bulk density (g cm -3 ) by reduced it, modifying total porosity % by increased it and features via decreasing pH, EC and ESP% in the soil. The interaction between sulfur and foliar potassium showed that applying sulfur (650 Kg ha -1 ) with potassium citrate (45%) together showed an effective impact on rice under salinity condition by improving growth, yield, N P K uptake and improving soil properties.

No abstract

The present study was carried out on Meraga drain located in EL-Gamalia district, Dakahlia Governorate(Middle Nile Delta) to evaluate the effect of drainage water quality on soil properties and chemical composition of plants. Meraga drain passes many villages dotted along it receiving their agriculutral drainage water, house waste waters and industrial effluents. Water samples were seasonally collected from 6 sites along this drain ( EL-Gamalia city (0),1.5, 3.0, 4.5, 6 and 7.5 km.). Water samples were seasonally collected during June 2009 to March 2011. Also, soil samples and plant were collected seasonally from the distance of 1.5 to 6 km. The main obtained results are presented as follows: Electrical Conductivity (EC) values increased slightly with northward direction. Also, Sodium Absorption Ratio (SAR) took the same trend, the quality of studied drainage water belong to C3 S1 and C4 S1 classes and could be re-use in irrigation purpose under special management. Boron (B) concentration, at most of locations have low concentration (B1) < 3 mg L -1 which less than the critical limit indicating (slight to moderate for restriction on use). Nitrate -N concentrations was ranged from 5-30 ppm in the Meraga drains in two summer seasonally 2009 and 2010 whereas, the other seasonally was higher than the critical limits. Micronutrients and heavy metal ions concentrations (Fe +2 , Mn 2+ , Zn 2+ Pb 2+ ) were less than permissible levels at all selected water samples. Using drainage water for irrigation, caused an increase in soil content of available micronutrients (Fe, Mn and Zn) whereas, heavy metals (Pb) was less than the permissible limits (500 mg kg -1 ). Concentrations of heavy metal and micronutrients (Fe, Mn, Zn and Pb) in straw and grains of wheat and rice grown in the most locations were under the permissible limits except Pb and Fe concentration exceeds the critical levels in all locations.The concentration in straw of wheat and rice crops were higher than in the grain at all location. Zn and Mn concentrations were less than critical limits at all locations in shoot of clover plants and Pb and Fe concentrations were higher than critical limit at all locations. Finally, the rice crop had better effect on water quality than cotton then wheat and finally clover.