Vol. 10, Issue 7 (2021)

Author(s):
Neelam Nama, MK Sharma, DS Meena, RK Yadav, Preeti Verma and Yash Narayan Sharma

Abstract:
A field experiment was conducted at farm of agricultural research station Ummedganj, Agriculture University Kota during Zaid-2020 to find out the effect of liquid bio fertilizers and drought mitigating chemicals on soil physico-chemical properties and nutrient availability after harvesting mungbean crop. The experiment comprised of ten treatment combinations viz. T₁ - 100% RDF (Control), T₂ - 100% RDF + Rhizobium (10 ml/kg seed) + water spray, T₃ - 100% RDF + Rhizobium (10 ml kg^-1 seed) + 2% KCl spray, T₄ - 100% RDF + Rhizobium (10 ml/kg seed) + 0.4% Sodium selenite spray, T₅ - 100% RDF + Rhizobium (10 ml/kg seed) + 2% KCl+ 0.4% Sodium selenite spray, T₆ - 100% RDF + P.S.B. (10 ml/kg seed) + Water spray, T₇ - 100% RDF + P.S.B. (10 ml/kg seed) + 2% KCl spray, T₈ - 100% RDF + P.S.B.( 10 ml/kg seed) + 0.4% Sodium selenite spray, T₉ - 100% RDF + P.S.B.(10 ml/kg seed) + 2% KCl + 0.4% Sodium selenite spray, T₁₀ - 100% RDF + Rhizobium (10 ml/kg seed)+ P.S.B. (10 ml/kg seed) + 2% KCl + 0.4% Sodium selenite spray. The experiment was laid out in randomize block design and replicated thrice with mungbean, variety IPM-02-03 grown as test crop. Results showed that application of 100% RDF + Rhizobium (10 ml/kg seed)+ P.S.B. (10 ml/kg seed) + 2% KCl + 0.4% Sodium selenite spray significantly improved the soil physico–chemical properties, increased the nutrient availability in soil after harvesting the mungbean crop viz., organic carbon (0.53%), available nitrogen (244.61 kg ha^-1), available phosphorus (22.60 kg ha^-1), available potassium (436.61 kg ha^-1) Fe content (4.88 mg kg^-1), Mn content (3.68 mg kg^-1), Zn content (0.63 mg kg^-1) as compared to initial soil test values.