Vol. 10, Issue 9 (2021)

Author(s):
Yashaswini NP, Vijaymahantesh, VP Singh and YC Vishwanath

Abstract:
An investigation was carried out to study “Effect of integrated nutrient management on yield and economics of Tulsi (Ocimum sanctum L.) in Northern Dry Zone of Karnataka” during Kharif season of 2018-19. The experiment was laid out in RCBD with 10 treatments in 3 replications. The integrated nutrient management treatments selected for study comprised of T₁:Control – RDF (125:75:60, N: P₂O₅: K₂O kg ha^-1 + FYM 10 t ha^-1), T₂:RD of NPK (125:75:60 N: P₂O₅: K₂O kg ha^-1) + Vermicompost 5 t ha^-1, T₃:75% RDN + RD P₂O₅ and K₂O+ FYM 10 t ha^-1 + Azospirillum 10 kg ha^-1, T₄:75% RDN + RD P₂O₅ and K₂O+ Vermicompost 5 t ha^-1 + Azospirillum 10 kg ha^-1, T₅:T₃+ Azotobacter 10 kg ha^-1, T₆:T₄+ Azotobacter 10 kg ha^-1, T₇:50% RDN + RD P₂O₅ and K₂O+ FYM 10 t ha^-1 + Azospirillum 10 kg ha^-1, T₈:50% RDN + RD P₂O₅ and K₂O+ Vermicompost 5 t ha^-1 + Azospirillum 10 kg ha^-1, T₉: T₇+ Azotobacter 10 kg ha^-1 and T₁₀: T₈+ Azotobacter 10 kg ha^-1. The results from the study revealed that application of 75% RDN + RD P₂O₅ and K₂O+ Vermicompost 5 t ha^-1 + Azospirillum 10 kg ha^-1+ Azotobacter 10 kg ha^-1 (T₆) recorded significantly higher fresh herbage yield (69.91 q ha^-1) and dry herbage yield (41.31 q ha^-1) with a B: C ratio of 4.11 in Tulsi (Ocimum sanctum L.) compared to other treatments.