Author(s): Dr. Kiran Sagar DC, Dr. Mallikarjun G Awati, Dr. Sanjeevraddi G Reddi and Dr. Shivanna M

Abstract: A investigation was conducted to study the effect of partial root drying technique and fertigation on major pest and diseases of pomegranate (Punica granatum L.) Cv. Bhagwa was carried out through a field experiment. The experiment comprising of 8 treatments, T₁ is a partial root drying technique that requires 100% water and 100% nutrition (NPK); T₂ is a partial root drying technique that requires 100% water and 75% nutrition (NPK); T₃: Half-drying method (75% water needed) + 100% nutrition through fertigation using 100% RDF of NPK; T₄: Half-drying method (75% water needed) + 75% nutrition through fertigation using 75% RDF of NPK; T₅: 50% water need for partial root drying + 100% nutrition through fertigation with 100% RDF of NPK, T₆: 50% water need for partial root drying + 75% nutrition through fertigation with 75% RDF of NPK, T₇: Management, or standard drip irrigation (requiring 100% water) and 100% nutrition through fertigation using 100% RDF of NPK, T₈: Control, or standard drip irrigation with 100% water need on both plant sides with 75% nutrition through fertigation using 75% RDF of NPK. In pooled data of two years, minimum incidence of bacterial blight (5.28%) and fusarium wilt (6.24%) was observed in I₁ (PRD₁₀₀) and I₂ treatment (PRD₇₅). Minimum incidence of bacterial blight (5.81%) and fusarium wilt (14.55%) was recorded in N₁ treatment (RDF₁₀₀). The minimum incidence of bacterial blight (5.15%) and fusarium wilt (4.16%) was noticed in T₅ treatment. Coming to pest infestation, minimum fruit borer incidence (3.65%) and aphid incidence (7.74%) was observed in I₃ (PRD₅₀). Minimum fruit borer incidence (4.50%) and aphid incidence (9.61%) was recorded in N₂ treatment (RDF₇₅). In interaction effect of fertigation and irrigation, the minimum fruit borer incidence (3.51%) and aphid incidence (7.65%) was noticed in T₆ treatment.

DOI: 10.33545/26174693.2024.v8.i2f.595