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Two field experiments were carried out in a private farm at El-Quntra Shark east Suez Canal, Egypt during the two successive summer seasons of 2011 and 2012. Both experiments were conducted to study the influence of spraying on soil surface of Silicon i.e. 0, 50, 100 and 150 ppm and boron i.e. 0, 25, 50 and 100 ppm with or without compost on soil fertility and yield, yield components, oil %, protein, proline, chlorophyll content as well as nutritive status of peanut plants grown on sandy saline soil. The soil is irrigated with Sprinkler from El-Salam canal water (Nile water mixed with agriculture drainage water 1:1). The cultivar of seeds peanut was Gregory. Plant samples were taken at maturity stage to estimate the yield and the chemical composition of seeds. The results showed significant increase in all studied parameters of peanut as compared with the treatment of without compost in both seasons. The highest values of yield and yield components were obtained from plants received foliar spraying with 150 ppm Si and 100 ppm B alone or with compost. Also different rates of Si and B increased significantly the concentration of N, P, K, Si, Zn and B in seeds of peanut in both seasons as compared without compost treatments. The highest values of N, P, K, Si, Zn and B concentrations in seeds of peanut plants were obtained by using (150 ppm of Si and 100 ppm of B combined with compost in both seasons. The highest values of oil (%), protein (%) and chlorophyll contents in peanut seeds in both of seasons were attained when the highest level of Si (150 ppm) and B (100 ppm) alone or combinated with compost. addition as foliar application. The different rates of Si and B led to decreases of proline in both seasons as compared with control. The highest values of proline in both seasons were obtained by using foliar spraying with the low rates of Si or B, under high soil salinity. Soil salinity (EC) was decrease when soil treated with compost combined with highest rates of Si 150 ppm and B 100 ppm. Soil pH decreased with increasing Si and B combined with compost .The highest values of N, P, K, Si, B and Zn were obtained from soil receiving foliar spraying with 150 ppm Si and 100 ppm B alone or with compost.     It could be concluded that foliar spray Si and boron at (100 and 150 ppm Si) and (50 and100 ppm B) in combination with compost led to improve soil fertility, enhanced plant growth and peanut yield and its components.

IMPACT THE FOLIAR APPLICATION OF SILICON AND B WITH OR WITHOUT COMPOST ON SOIL FERTILITY AND PEANUT PRODUCTIVITY UNDER NEWLY RECLAIMED SOIL CONDITIONS