Changes in Soil Zinc Fractions Upon Inoculation of Zinc Solubilizing Bacteria (ZnSB) Under Rice Rhizospheric Soil

• DOI: 10.1080/00103624.2024.2356170
• Publication Date: 2024-05-21T07:06:06Z
• Authors: Ankesh Kumar Chan...; Mahendra Singh; Amit Kumar Pradhan; Santosh Kumar; Kasturikasen Beura; Pratibha Singh
• Keywords: Soil bacteria

Zinc (Zn) is an essential micronutrient that found in almost all classes of enzymes. Its deficiency a well-documented problem among cereal crops causes decreased crop yields and nutritional quality. Therefore, experiment was implemented randomized block design which included the treatments bacterial inoculation consisting T1 (Control), T2 (100% RDF;100:40:20), T3(100% RDF + 25 kg ZnSO4.7 H2O), T4(100%RDF+ ZnSB1– Bacillus sp. strain BAU_A2 @750 ml ha−1), T5 (100%RDF+ ZnSB2– Priestia megaterium BAU_A3 T6 ZnSB3-Bacillus subtilis BAU_A5@750 ha−1). The mineral NPK applied as per treatments. results indicated maximum values water soluble exchangeable Zn organically bounded ZnSB1, ZnSB2 ZnSB3, respectively. WS+EXCH-Zn significantly increased by 68.57%, 28.26%, 18%, 98.14%, 41.30%, 30.00% 128.12%, 55.55%, 37.25%, 43%, 62.22% 43.13% first year (2018–19) second (2019–2020) under soil treated with ZnSB1-Peribacillus simplex BAU_A1, ZnSB2-Bacillus BAU__A2 BAU_A5 along 100%RDF over control, application recommended dose fertilizer without ZnSO4 ha−1, However, decrement Mn-oxide-bounded zinc (1.12 mg kg−1 soil) observed higher 158%, 194.4%, 185.71% 100% showed solubilization activity ZnSB soil. study may be beneficial to mitigate malnutrition children.