Effect of Bio and Organic Fertilizations and Per-sowing Seeds Magnetic field Combined with Mineral Nitrogen Fertilizer on Some Soil Properties and Faba Bean Productivity and Quality under Saline Soil Conditions

Two filed experiments were conducted at Sahl-El-Hussinia, agricultural research station, El-Sharkia Governorate, Egypt, 31o - 8' – 12.461" N and 31o - 52' – 15.469 E. during two successive winter seasons 2020/2021 and 2021/ 2022 , to study the evaluation of used bio-fertilizer (Rhizobium radiobacter sp strain (Salt Tolerant PGPR), humate potassium and pre-sowing seeds faba bean magnetic field different times (5, 10 and 15 min) combined with mineral N fertilizer at rates (15, 30 and 45 N kg/fed) on some soil properties and faba bean productivity and quality. The studied treatments were arranged within the experimental units in a split split plot design in three replicates. Results indicated that the all treatments had improved soil properties i.e. decreased soil salinity and soil pH and increase of available N, P, K, Fe, Mn and Zn contents in soil. The soil treated with humat potassium combined the highest N mineral fertilizers rate and magnetic field time than other treatments. On the other hand, the maximum values of weight of yield and other yield components as affected with humat potassium combined with 45 kg mineral N fertilizers under magnetic field at 15 min compared other treatments. The highest values of macro-micronutrients (N, P, K, Fe, Mn and Zn) concentrations in faba bean seeds as affected with bio-fertilizer and potassium humate combined with mineral N fertilizer different rates compared with control. The bio-fertilizer was beast on faba bean quality.