Nour El-Deen, M. A. creator Azouz, H. A. Abo-Zid, Amal E. text bibliography ua 2015 continuing eng ara

electronic

electronic resource

electronic resource

p.649-662. The soybean plants were fertilized with two methods chemical and bio fertilizers and each method soybean plants were sprayed with Vertimec, Salicylic A.; Potassium sulfate (K2S04); Boric acid and Ascobein to reduce the mobile stages of T. urticae and determined the yield in two successive seasons (2013 and 2014). In the first season (2013), soybean plants was fertilized with the chemical fertilizers; the results indicated that Salicylic A. with five concentrations (50, 100, 150, 250 & 300 mg/L),Potassium sulfate with two concentration (5 & 10 mg/L), Boric acid with three concentrations (0.8, 1.2 and 1.6 mgll) and Ascobein 0. 25% reduced the population of the mobile stages of T. urticae comparing with the recommended compound (Vertimec).Statistical analysis of 2013 season showed highly significant differences between the tested natural compounds and seed yield/Feddan. In the second experiment, soybean plants was fertilized with bio and chemical fertilizers; the results indicated that Salicylic A. with five concentrations, Potassium sulfate with two concentration, Boric acid with three concentrations and Ascobein reduced the population of T. urticae comparing with the recommended compound (Vertimec). Statistical analysis of 2013 season show highly significant differences between the tested natural compounds also between the seed yield/Feddan. Keywords:Soybean, Vertimec, Salicylic A.; K2S04; Boric acid and Ascobein, T. urticea, chemical fertilizers and bio fertilizers. Includes reference. Summary in Arabic. Two-spotted spider mite Soybean Diseases and pests Potassium sulphate Boric acid Physiological effect u183494 2015.v.6(4) http://nile.enal.sci.eg/EALE/2015/MUJPPP/615/4/649.pdf http://nile.enal.sci.eg/EALE/2015/MUJPPP/615/4/649.pdf EAL 100720 u212750