Integrated Nutrient Management (INM) on Yield Attributes of Black gram [Vigna mungo(L.) (Hepper)], in Malwa Region of Madhya Pradesh, India

Abstract

The present investigation titled “Integrated Nutrient Management (INM) on Yield Attributes of Black gram (Vigna mungo L. Hepper)” in the Malwa Region (M.P.) was conducted at Crop Research Cafeteria, under Mandsaur University, Mandsaur(Madhya Pradesh). A randomized block design with 8 treatments and 3 replications was followed. Black gram variety T-9 was sown at 15 kg ha⁻¹.The treatments included T1: Control, T2: 100% RDF + Rhizobium, T3: 100% Vermicompost + Rhizobium, T4: 75% Vermicompost + 25% RDF + Rhizobium, T5: 50% Vermicompost + 50% RDF + Rhizobium, T6: 100% NADEP + Rhizobium, T7: 75% NADEP + 25% RDF + Rhizobium, and T8: 50% NADEP + 50% RDF + Rhizobium. Treatments included control, 100% RDF + Rhizobium, 100% Vermicompost + Rhizobium, and combinations of Vermicompost or NADEP with RDF + Rhizobium. At 45 DAS, the maximum plant height was recorded in T6(100% NADEP + Rhizobium) with 60.33 cm. At harvest, the highest plant height was again recorded in T6(64.14 cm). The highest plant population was also recorded under T6(18.00 plants m⁻²). The maximum relative growth rate (RGR) was recorded under T6(0.049 g g⁻¹ day⁻¹). Crop growth rate (CGR) was highest in T6(12.73 g m⁻² day⁻¹), followed by T8(12.26 g m⁻² day⁻¹) and T4(11.66 g m⁻² day⁻¹), whereas the lowest CGR was recorded in the control treatment T1(8.06 g m⁻² day⁻¹). Overall treatments T8(50% NADEP + 50% RDF + Rhizobium), followed by T5(50% Vermicompost + 50% RDF + Rhizobium), T6(100% NADEP + Rhizobium) and T7(75% NADEP + 25% RDF + Rhizobium). However, T1 reported the lowest values in most of the parameters.