Effect of Rhizobacterein Bio Fertilizer, Nano-NPK and Nano-Micro Complete on some Parameters of Growth and Yield of Bean and Number of Bacteria in the Rhizosphere

Abstract During the winter season 2021-2022, an experiment was carried out in wooden canopy of College Agriculture and Forestry / University Mosul to study effect Rhizobacterein, Nano-NPK20:20:20, Nano-Micro Complete fertilizers time periods on number rhizosphere bacteria some growth yield parameters bean. Using (Silt Loam) texture Alhawi soil region. The first factor contained nine treatments (NPK20:20:20), (Micro Complete) nano-fertilizer, Rhizobacterein bio-fertilizer, dual tri combination them, In addition a treatment containing conventional fertilizers, as well control. second is (60, 90 120) days cultivation using complete random design (CRD) with three replications. On 24/11/2021, seeds Italian-origin bean Luz cultivar were planted polyethylene (10) kg soil. Fertilizers combined added two batches, after germination 20 later. For each time, total vegetative properties counted. 90, days. results statistical analysis for least significant difference (L.S.D 0.05 ) showed superiority fertilization (Nano-NPK+Nano-Micro complete+Rhzobacterein) period (120) planting chlorophyll index, fresh pods yield, plants (51.84 SPAD, 71.62 g plant −1 , 33.85 respectively, compared same traditional sources (49.2 62.86 24.72 period, while trend achieved numbers nano, bio (6.93, 10.12, 5.03) (10 8 cfu soil, traditional, (5.14, 6.73, 4.59) respectively planting.