Vol. 11, Issue 10 (2022)

Author(s):
Kiran Sagar DC, Athani SI, MK Honnabyraiah, Shivanna M, Mallikarjun G Awati, Sanjeevraddi G Reddi and DR Patil

Abstract:
A field experiment was conducted to study the effect of partial root drying technique and fertigation on soil nutrients of pomegranate (Punica granatum L.) cv. Bhagwa. The experiment comprising of 8 treatments, T₁: Partial root drying technique (100% water requirement) + 100% nutrition (NPK), T₂: Partial root drying technique (100% water requirement) + 75% nutrition (NPK), T₃: Partial root drying technique (75% water requirement) + 100% nutrition by fertigation with 100% RDF of NPK, T₄: Partial root drying technique (75% water requirement) + 75% nutrition by fertigation with 75% RDF of NPK, T5: Partial root drying technique (50% water requirement) + 100% nutrition by fertigation with 100% RDF of NPK, T₆: Partial root drying technique (50% water requirement) + 75% nutrition by fertigation with 75% RDF of NPK, T₇: Control i.e. normal drip irrigation (100% water requirement) + 100% nutrition by fertigation with 100% RDF of NPK, T₈: Control i.e. normal drip irrigation on both sides of the plant (100% water requirement) + 75% nutrition by fertigation with 75% RDF of NPK. Among the interaction effect between irrigation and fertigation levels during flowering stage, maximum soil nitrogen content was noticed in I2N1 treatment (284.17 kg ha^-1) followed by I1N1 treatment (282.39 kg ha^-1). Whereas, minimum soil nitrogen content was noticed in I3N2 treatment (276.20 kg ha^-1). In harvest stage, the maximum soil nitrogen content was observed in I3N1 treatment (219.75 kg ha^-1) followed by I3N2 treatment (218.88 kg ha^-1). Whereas, minimum soil nitrogen content was noticed in I2N2 treatment (206.75 kg ha^-1).